MECH VAN CATALOGUE.pdf

COMPANY HISTORY

1960

1990

1961 1962

BusinessStarted fromGreyIronPot

1992

1963 1964

1993

1965

1995

1967 1968

1996

1969 Malleable Iron Pipe Fittings

1997

Steel PipeNipples RedBrassPipe Nipples

1998

1971 1972

1999

1973 2000

1974

DuctileIron GroovedFittings BronzeFittings,BallValves

2001

1975 1976

SelfExport, DeveloppedUS andEuropeanMarket

1994

1966

1970

PipeHangers andBrackets

1991

MalleableIron Pipeclamp Fittings

2002

1977 2003

1978

2004

1979 1980

2005

1981 1982

DuctileIron Pipe Fittings

2006 2007

1983 1984

ElectricPowerFittings

2008

1985 2009 1986 1987

Export,Main Market: Southeast Asia

1988 1989

2010 2011

ValveBusiness Development

2012

Extra-heavy BrassPipeNipples

2013

SteelPipe Development

Cast IronFittings

BS VALVES

BS 5163 Resilient Wedge Gate Valve

BS 5163 Flanged Resilient NRS Gate Valve Type A T Key (Z45X) PN10/16, UL/FM Approved

• Statement: Gate valves serve to cut the medium flow in the piping system, widely used in the field of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well as chemical and energy industry. • Features: 1. Material: Ductile Iron EN-GJS-450-10 Body, bonnet, wedge, handwheel and operating nut are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance.

MATERIAL SPECIFICATION

2. Triple O-ring StemSeals The lower O-ring isolat es the stemt hrust collar bearing area from the waterway. Theupper two O-rings can easily be replaced in the line while the valve is under pressure in the open position.

Part No.

Part

Standard Specification

1

Valve Body

EN-GJS-450-10

2

Resili entWedgeDisc

EN-GJS-450-10+EPDM

3

Stem

SS420

4

Nut

Carbon Steel Zinc Plated

5

Bonnet

EN-GJS-450-10

6

O-Ring

NBR

7

Gland

EN-GJS-450-10

8

Handwheel

EN-GJS-450-10

Pressed Steel

9

Bolt


SS304, SS316

10

Flat Washer


SS304, SS316

3. Stainless Steel Stem, Brass Thrust Collar and Bronze Wedge Nut This life-tested MEIDE design has repeatedly proven its superior strength and abrasive resistance. 4. Fusion Bonded Epoxy Coating Fusion bonded epoxy coating in accordance with ANSI/AWWAC550 for both interior and exterior surface which provides reliable corrosion resistance. 5. Long Service Life with Resilient Seat Cycling Test 1,000 times The Valve has been subjected to 1,000 cycl es of operation at a maximum rate of 6 cycles of operation per minute from fully closed to fully open and from fully open to fully closed positions under cycled hydrostatic pressure.

Z45X • Body, Bonnet, Wedge & Operating Nut in Ductile Iron • Triple O-ring Stem Seals • Stainless Steel Stem and Brass Thrust Collar

• Connection Ends: Flange to BS EN 1092-2:1997

Options

SS304, SS316, SS431, Al-bronze SS304, SS316 EPDM

• Bronze Alloy Wedge Nut

• Working Pressure: PN10/PN16

11

Ring Wiper

NBR

• Fusion Bonded Epoxy Coating

• Temperature Range: 0℃- 80℃

12

Bolt


SS304, SS316

• Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550

13

Flat Washer


SS304, SS316

14

O-Ring

NBR

EPDM

15

Thrust Washer

Brass HPb59-1

16

Bonnet Gasket

EPDM

NBR

17

Wedge Nut

Brass HPb59-1

Bronze ZQSn5-5-5

EPDM

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list. DN Inch

mm

2"

50

2.5"

Z45X Flanged Resilient NRS Gate Valve TypeA Page 11

Z45XB Flanged Resilient NRS Gate Valve TypeB Page 12

Z41X Z85X Flanged Resilient OS&YGate Valve Grooved Resilient NRS Gate Valve Page 13 Page 14

Z45X-1

Z45XC

Z81X Grooved Resilient OS&YGate Valve Page 15

Z45XC-2 Flanged Resilient NRS Gate Valve with Post Flange

IP VerticalIndicatorPost

Dimensions(mm) L

H

D

D1

d

C

T

n-d

10/16

178

218

165

125

99

19

3

4-Φ19

65

10/16

190

232

185

145

118

19

3

4-Φ19

3"

80

10/16

203

281

200

160

132

19

3

8-Φ19

4"

100

10/16

229

316

220

180

156

19

3

8-Φ19

5"

125

10/16

254

393

250

210

184

19

3

8-Φ19

6"

150

10/16

267

420

285

240

211

19

3

8"

200

292

490

340

295

266

20

3

330

626

405

319

22

3

356

722

460

370

24.5

4

381

800

520

428

26.5

4

406

870

580

480

28

4

548

30

4

609

31.5

4

720

36

4

10"

SMC XZA Details for electric drive available upon request.

PN

250

12"

300

14"

350

16"

400

18"

450

20"

500

24"

600

10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16

650

1150

640

700

1250

715

800

1350

840

350 355 400 410 460 470 515 525 565 585 620 650 725 770

8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 20-Φ28 20-Φ31 20-Φ28 20-Φ34 20-Φ31 20-Φ37

BS VALVES

BS 5163 Flanged Resilient OS&Y Gate Valve (Z41X) PN10/16, UL/FM Approved

BS 5163 Flanged Resilient NRS Gate Valve Type B Ring Key and Bar (Z45XB) PN10/16, UL/FM Approved

MATERIAL SPECIFICATION Part No.

Z45XB

• ConnectionEnds:Flangeto BSEN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: 0℃- 80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550 DN Inch

Z45XB-1

Z45XBC

mm

2"

50

2.5"

65

3"

80

4"

100

5"

125

6"

150

8" 10"


Part


Options

1 Valve Body EN-GJS-450-10 2 Resili entWedgedisc EN-GJS-4 50-10+EPDM 3 Stem SS431 SS304, SS316, Al-bronze 4 Bonnet Gasket EPDM NBR 5 Bonnet EN-GJS-450-10 6 O-Ring NBR EPDM 7 Gland EN-GJS-450-10 8 Handwheel EN-GJS-450-10 Pressed Steel 9 Bolt Carbon Steel Zinc Plated SS304, SS316 10 Flat Washer Carbon Steel Zinc Plated SS304, SS316 11 Ring Wiper EPDM NBR 12 O-Ring NBR EPDM 13 Nut Carbon Steel Zinc Plated SS304, SS316 14 Axis guide Brass Hpb59-1 15 Washer Brass Hpb59-1 16 O-Ring NBR EPDM 17 Nut Carbon Steel Zinc Plated SS304, SS316 18 Wedge nut Brass Hpb59-1 Bronze ZQSn5-5-5 Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

200 250

12"

300

14"

350

16"

400

18"

450

20"

500

24"

600

PN

10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16

Dimensions(mm) D1 d

L

H

D

178

254

165

125

190

275

185

145

C

T

99

19

3

118

19

3

203

301

200

160

132

19

3

229

355

220

180

156

19

3

254

393

250

210

184

19

3

267

448

285

240

211

19

3

292 330

548 626

340

295

405

350 355

356

722

460

381

800

520

406

870

580

650

1150

640

700

1250

715

800

1350

840

400 410 460 470 515 525 565 585 620 650 725 770

266 319

20 22

3 3

370

24.5

4

428

26.5

4

480

28

4

548

30

4

609

31.5

4

720

36

4

Part No.

Part


1

Valve Body

EN-GJS-450-10

2

Resili entWedgeDisc

EN-GJS-450-10+EPDM

3

O-ring

4

Stem

SS420

SS304, SS16, Al-bronze

5

Nut


SS304, SS316

6

Bonnet

EN-GJS-450-10

7

StemBushing

8

Gland

EN-GJS-450-10

9

Flat Washer


10

Stud


SS304, SS316 SS304, SS316

Z41X

• Connection Ends: Flange to BS EN1092- 2:1997

Options

NBR

EPDM

Brass Hpb59-1

11

Nut


12

Yoke

EN-GJS-450-10

SS304, SS316

13

Nut


14

Washer

Brass Hpb59-1


15

Locknut


Br ass Hpb5 9- 1


16

Handwheel

17

StemPacking

NBR

EPDM

18

Bonnet Gasket

EPDM

NBR

EN-GJS-450-10

Pressed Steel

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.

n-φL 4-Φ19

DN

Dimensions(mm)

4-Φ19

Inch

mm

8-Φ19

2"

50

8-Φ19

2.5"

65

8-Φ19

3"

80

8-Φ23

4"

100

8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 20-Φ28 20-Φ31 20-Φ28 20-Φ34 20-Φ31 20-Φ37

5"

125

6"

150

8"

200

10"

250

12"

300

14"

350

16"

400

18"

450

PN

10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16

L

H1 (Close)

H2 (Open)

D

D1

d

C

T

n-φL

178

257

307

165

125

99

19

3

4-Φ19

190

305

370

185

145

118

19

3

4-Φ19

203

350

430

200

160

132

19

3

8-Φ19

229

422

522

220

180

156

19

3

8-Φ19

254

515

640

250

210

184

19

3

8-Φ19

267

563

713

285

240

211

19

3

292

675

875

340

295

266

19

3

330

905

1155

405

356

1030

1330

460

381

1210

1560

520

406

1280

1680

580

650

1700

2150

640

350 355 400 410 460 470 515 525 565 585

319

22

3

370

24.5

4

429

26.5

4

480

28

4

548

30

4

8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 20-Φ28 20-Φ31

BS VALVES

BS 5163 Grooved Resilient OS&Y Gate Valve (Z81X), PN10/16

BS 5163 Grooved Resilient NRS Gate Valve (Z85X), PN10/16


Z85X

• Connection Ends: Groove to ISO6182 • Working Pressure: PN10/PN16 • Temperature Range: 0℃- 80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550 or painting upon request


Part


1

Valve Body

EN-GJS-450-10

Options

2

Resili entWedgeDisc

EN-GJS-4 50-10+EPDM

3

Stem

SS420


4

Nut


SS304, SS316

5

Bonnet

EN-GJS-4 50-10

6

O-Ring

NBR

7

Gland

EN-GJS-450-10

8

Handwheel

EN-GJS-450-10

Part No.

Z81X EPDM

Z55X

Resili entWedgeDisc

EN-GJS-4 50-10+EPDM

3

O-Ring

4

Stem

SS420


5

Nut


SS304, SS316

6

Bonnet

EN-GJS-450-10

7

StemBushing

Brass Hpb59-1

EPDM

8

Gland

EN-GJS-450-10

9

Flat Washer



10

Stud


SS304, SS316

• Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/ AWWAC550 or paint ing upon request

11

Nut


SS304, SS316

12

Yoke

EN-GJS-450-10

13

StemNut

Brass Hpb59-1

14

Washer

Brass Hpb59-1

15

Locknut


16

Handwheel

17

StemPacking

NBR

EPDM

18

Bonnet Gasket

EPDM

NBR

Bolt


SS304, SS316

Flat Washer


SS304, SS316

11

Ring Wiper

NBR

EPDM

12

Bolt


SS304, SS316

13

Flat Washer


SS304, SS316

14

O-Ring

NBR

EMDM

15

Washer

Brass HPb59-1

16

Bonnet Gasket

EPDM

NBR

17

Wedge Nut

Brass HPb59-1

Bronze ZQSn5-5-5

L

2

NBR

Options


9

SS304, SS316

Bronze ZQSn5-5-5

EN-GJS-450-10

Pressed Steel


Dimensions(mm) mm

EN-GJS-450-10

• Connection Ends: Groove to ISO6182


Inch


Valve Body

Pressed Steel

10

DN

Part

1

H

OD

2"

50

178

218

60.3

57.15

15.88

7.92

2.5"

65

190

230

73

69.09

d

15.88

A

7.92

B

2.5"

65

190

230

76.1

72.26

15.88

3"

80

203

281

88.9

84.94

4"

100

229

316

114.3

110.08

5"

125

254

393

139.7

135.48

5"

125

254

393

141.3

137.03

15.88

9.52

6"

150

267

420

165.1

160.90

15.88

9.52

6"

150

267

420

168.3

163.96

15.88

9.52

8"

200

292

490

219.1

214.40

19.05

11.13

10"

250

330

626

273.0

268.28

19.05

12.70

12"

300

356

722

323.9

318.29

19.05

12.70

DN

Dimensions(mm)

Inch

mm

L

H1(Close)

H2(Open)

OD

d

A

B

7.92

2"

50

178

257

307

60.3

57.15

15.88

7.92

15.88

7.92

2.5"

65

190

305

370

73

69.09

15.88

7.92

15.88

9.52

15.88

9.52

2.5"

65

190

305

370

76.1

72.26

15.88

7.92

3"

80

203

350

430

88.9

84.94

15.88

7.92

4"

100

229

422

522

114.3

110.08

15.88

9.52

5"

125

254

516

640

139.7

135.48

15.88

9.52

5"

125

254

516

640

141.3

137.03

15.88

9.52

6"

150

267

563

713

165.1

160.90

15.88

9.52

6"

150

267

563

713

168.3

163.96

15.88

9.52

8"

200

292

675

875

219.1

214.40

19.05

11.13

10"

250

330

904

1158

273.0

268.28

19.05

12.70

12"

300

356

1030

1335

323.9

318.29

19.05

12.70

BS VALVES

BS EN 593 Resilient Centerline Butterfly Valve

BS EN 593 Wafer Butterfly Valve (D71X4, D371X4, XD371X4), PN10/16

• Statement: Resilient centerline butterfly valves usually serve to cut off medium flow in the piping system, widely applied in the field of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well as chemical and energy industry. The design of the butterfly valves, however, makes it also suitable to serve as adjusting valve. • Features: 1. Material: Body and lever are all produced in ductile iron material (EN-GJS-450-10) which provides guarantee for high strength and good corrosion resistance. Different options of the disc and seat, e.g. disc of DI nickel or nylon 11 coated, different series of stainless steel, Al-bronze, seat in EPDM, NBRor Fluororubber, makes it suitable to be applied under different working conditions. 2. Design: Universal flange connection to BS EN 1092 PN6/10/16, ANSI B16.1 CLASS 125/150, GB9113, JIS B2112 10K, AS2129 Table E, BS10 TableD/E. Different options of operation including lever handle, gear box, gear box with tamper switch, electric drive, and pneumatic drive, etc. Different options of rubber seat including insert rubber seat, rubber vulcanized on valve body and boot rubber seat. 3. Coating Fusion bonded epoxy coating of valve body and lever provides reliable corrosion resistance. To achieve higher corrosion resistance, factory is also able to supply Nylon 11 coated disc. Nylon 11 coating is thermoplast ic plant coating approved by USDAwit h high corrosion resistance and antisepsis which can be applied where there is strict requirement for anticorrosion.


Part

St andard Specification

1

Val ve Body

EN-GJS-450-10

2

Seat

EPDM& Backing

NBR/Fluororubber & Backing; EPDM/NBRVulcanizedon ValveBody; Soft Seat in EPDM/NBR;

3

Disc

EN-GJS-450-10

SS304,SS316,AL-Bronze UNC 95400

4

Stem

SS420

SS304, SS316, SS416, SS431

5

O-Ring

NBR

EPDM

• Ductile Iron Lever and Body

6

Bushing

Nylon 1010

PTFE

• Stainless Steel Stem

7

Lever

EN-GJS-450-10

Aluminum

D71X4

• Fusion Bonded Epoxy Coating • Disc: DI, Stainless Steel or Al-bronze • Seat: EPDM/NBR/Fluororubber with backing

• Design Standard: BS EN 593 • ConnectionEnds:BS EN1092PN10/PN16,AS 2129TABLEE, JIS B2212 10K, BS10 TABLED/E

Options


• Top Flange Standard: ISO 5211 Stem drive by keys, parallel or diagonal square or flat head • Working Pressure: PN10/PN16 • Temperature Range: 0℃- 80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550

D371X4 DN

D71X4 Wafer Butterfly Valve Page 17

D71XL4 Lugged Wafer Butterfly Valve Page 18

Details for electric drive available upon request.

D41X4 Flanged Butterfly Valve Page 19

D81X4 Grooved Butterfly Valve Page 20

XD371X4 Dimensions(mm)

Inch

mm

A

B

C

D

D1

V

Φ2

N-Φ

G

L

ISO 5211

1.5"

40

138

64.5

33

43.9

110

32

12.6

4-Φ19

9.45

267

F07

2"

50

140.5

64.5

43

53.9

125

32

14

4-Φ19

9.53

267

F07

2.5"

65

153

72

46

65.2

145

32

14

4-Φ19

9.53

267

F07

3"

80

157.5

86

46

79.7

160

32

14

8-Φ19

9.53

267

F07

4"

100

176

100

52

105

180

32

16

8-Φ19

11.14

267

5"

125

191

112

56

130

210

32

16

8-Φ19

11.14

267

F07

6"

150

202.5

128

56

156

240

32

20

8-Φ23

12.7

267

F07

8"

200

243.5

162

60

206.7

295

45

26

12-Φ23

20.6

356

F10

10"

250

273

194

68

253.3

355

45

26

12-Φ28

20.6

356

F10

12"

300

311

223

78

301.9

410

45

28

12-Φ28

22.1

490

F10

14"

350

340

267

78

333.9

470

45

31.6

16-Φ28

22.1

—

F12

16"

400

400

300

102

389.6

525

48

33.2

16-Φ31

27

—

F14

Note: Not designed for dead end service

F07

BS VALVES

BS EN 593 Lugged Wafer Butterfly Valve (D71XL4, D371XL4), PN10/16

BS EN 593 Flanged Butterfly Valve (D41X4, D341X4), PN10/16


1 2

D71XL4

• Design Standard: BS EN 593 • Connection Ends: BSEN 1092 PN10/PN16 • Top Flange Standard: ISO 5211 Stem drive by keys, parallel or diagonal square or flat head

Part

Standard Spec fi i cation

Valve Body

EN- GJS-450- 10

Seat


Options

Part N o.

NBR/Fluororubber &Backi ng; EPDM/NBRVulcanizedon ValveBody; Soft Seat in EPDM/NBR;

EPDM& Backing

Standard Spec ification

Val ve Body

EN- GJS-450- 10

Options

2

Seat

EPDM

NBR

3

Disc

EN-GJS-450-10


3

Disc

EN-GJS-450-10


4

Stem

SS420

SS304, SS316, SS416, SS431

4

Stem

SS420

SS304, SS316, SS416, SS431

5

O-Ring

NBR

EPDM

5

O-Ring

NBR

EPDM

6

Bushing

Nylon 1010

PTFE

6

Bushing

Nylon 1010

PTFE

• Design Standard: BS EN 593

7

Lever

EN-GJS-450-10

Aluminum

7

Lever

EN-GJS-450-10

Aluminum

• Face to Face: BS EN 558 Series 13


• Working Pressure: PN10/PN16 • Temperature Range: 0℃- 80℃

D41X4


• Connection Ends: BS EN 1092 PN10/PN16 • Top Flange standard: ISO 5211 Stem drive by keys, parallel or diagonal square or flat head • Working Pressure: PN10/PN16



DN

Dimensions(mm)

2"

50

140.5

64.5

43

53.9

125

32

14

4XM16

9.53

267

ISO 5211 F07

2.5"

65

153

72

46

65.2

145

32

14

4XM16

9.53

267

F07

3"

80

157.5

86

46

79.7

160

32

14

8XM16

9.53

267

F07

4"

100

176

100

52

105

180

32

16

8XM16

11.14

267

F07

5"

125

191

112

56

130

210

32

16

8XM16

11.14

267

F07

6"

150

202.5

128

56

156

240

32

20

8XM20

12.7

267

F07

8"

200

243.5

162

60

206.7

295

45

26

12XM20

20.6

356

F10

10"

250

273

194

68

253.3

355

45

26

12XM24

20.6

356

F10

12"

300

311

223

78

301.9

410

45

28

12XM24

22.1

490

F10

14"

350

340

267

78

333.9

470

45

31.6

16XM24

22.1

Inch

D371XL4

Part

1

mm

A

B

C

D

D1

V

Φ2

NXM

G

L

F12


D341X4 DN Inch

Dimensions(mm) H1

H2

H3

Φ A

B

ΦC

n-Φ1

ΦD

ΦE

ΦK

n-ΦD2

ISO5211

ΦF

G

L

2"

50

108

80

110

32

165

19

125

4-Φ19

53.9

70

90

4-Φ10

F07

14

9.53

267

2.5"

65

112

80

131

32

185

19

145

4-Φ19

65.2

70

90

4-Φ10

F07

14

9.53

267

3"

80

114

95

134

32

200

19

160

8-Φ19

79.7

70

90

4-Φ10

F07

14

9.53

267

4"

100

127

113

150

32

220

19

180

8-Φ19

105

70

90

4-Φ10

F07

16

11.14

5"

125

140

114

170

32

250

19

210

8-Φ19

130

70

90

4-Φ10

F07

16

11.14

267

6"

150

140

139

180

32

285

19

240

8-Φ23

156

70

90

4-Φ10

F07

20

12.7

267

8"

200

152

175

210

45

340

20

295

12-Φ23

206.7

102

125

4-Φ12

F10

26

20.6

356

10"

250

165

203

245

45

405

22

355

12-Φ28

253.3

102

125

4-Φ12

F10

20.6

356

12"

300

178

242

276

45

460

24.5

410

12-Φ28

301.9

102

125

4-Φ12

F10

28

22.1

490

14"

350

190

250

328

45

520

24.5

470

16-Φ28

333.5

125

150

4-Φ14

F12

31.6

22.1

--

16"

400

216

277

376

51

580

24.5

525

16-Φ31

389.6

140

175

4-Φ18

F14

33.15

27

--

mm L1

H1

H2

H3

Φ A

B

ΦC

n-Φ1

ΦD

ΦE

ΦK

n-ΦD2

ISO5211

ΦF

G

L

18"

450

222

295

407

51

615

25.5

565

20-Φ28

440.5

140

175

4-Φ18

F14

38

27

20"

500

229

330

448

64

670

26.5

620

20-Φ28

491.6

140

175

4-Φ18

F14

41.15

27

--

24"

600

267

420

518

70

780

30

725

20-Φ31

592.5

165

210

4-Φ22

F16

50.65

--

--

28"

700

292

450

560

66

895

32.5

840

24-Φ31

695

254

300

8-Φ18

F25

63.5

--

--

32"

800

318

501

620

66

1015

35

950

24-Φ34

794.7

254

300

8-Φ18

F25

63.5

--

--

Inch

mm L1

PN16

PN10

26

267

--

BS VALVES

BS EN 593 Grooved Butterfly Valve (D81X4, D381X4, XD381X4), PN10/16

Butterfly Valve Performance Data Cv = Flow Coefficient Formulas for Cv Values: Cv=Q/(△P)0.5 Q= Flow Rate (gal/min) △P = Pressure DropAcross Valve (1bf/in2) Kv=Cv/1.156


Part

Standard Spec ification

1

Val ve Body

EN- GJS-450- 10

2

Disc

EN-GJS-450-10+EPDM

NBR

3

O-Ring

NBR

EPDM

4

Stem

SS431

SS304, SS316, SS416

• Design Standard: BSEN 593

5

O-Ring

NBR

EPDM


6

Stem

SS431

SS304, SS316, SS416

7

Lever

EN-GJS-450-10

Aluminum

D81X4

• Top Flange standard: I SO5211 Stem drive by keys, parallel or diagonal square or flat head

Options

FlowRate Q(gal/min)



Inch

2''

2.5''

3''

4''

mm

50

65

80

100

5''

6''

8''

10''

125

150

200

250

12''

DN

• Temperature Range: 0℃- 80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550 or painting upon request

300

Inch

2.06

2.50

3.06

4.06

5.04

6.06

8.06

9.90

11.81

mm

52.40

63.50

77.80

103.00

128.00

154.00

204.80

251.35

299.95

Cv

284.55

417.87

512.16

897.67

1200.59

1737.86

3073.50

4140.73

5896.80

Kv

246.15

361.48

443.04

776.53

1038.57

1503.34

2658.74

3581.95

5101.04

PipeDiameter

Flow Coefficient (FullyOpen)

XD381X4

D381X4 DN

Dimensions(mm)

ISO 5211 F07

Inch

mm

L1

L2

L3

ΦB

ΦC

ΦD

ΦE

ΦK

n-Φ1

H1

H2

H3

Φ2

G

2"

50

81

15.9

7.9

57.15

60.3

50.3

70

90

4-Φ10

65

89

32

14

9.53

2.5"

65

97

15.9

7.9

69.09

73.0

60.8

70

90

4-Φ 10

71

102

32

14

9.53

F07

2.5"

65

97

15.9

7.9

72.26

76.1

60.8

70

90

4-Φ10

71

102

32

14

9.53

F07

3"

80

97

15.9

7.9

84.94

88.9

76

70

90

4-Φ10

81

109

32

14

9.53

F07

4"

100

116

15.9

9.5

110.08

114.3

98.5

70

90

4-Φ10

95

128

32

16

11.14

F07

5"

125

148

15.9

9.5

135.48

139.7

122.4

70

90

4-Φ10

111

141

32

16

11.14

F07

5"

125

148

15.9

9.5

137.03

141.3

122.4

70

90

4-Φ 10

111

141

32

16

11.14

F07

6"

150

148

15.9

9.5

160.90

165.1

148

70

90

4-Φ10

133

153

32

20

12.7

F07

6"

150

148

15.9

9.5

163.96

168.3

148

70

90

4-Φ 10

133

153

32

20

12.7

F07

8"

200

133

19.1

11.1

214.40

219.1

199

102

125

4-Φ12

164

184

45

26

20.6

F10

10"

250

159

19.1

12.7

268.28

273.0

252

102

125

4-Φ12

196

216

45

31.6

22.1

F10

12"

300

165

19.1

12.7

318.29

323.9

300.5

102

125

4-Φ12

226

254

45

33.1

27

F10

Note: Valve must not be installed with disc in full open position. Disc must be partly closed so that no part is protruding beyond end of valve body.

BS VALVES

BS EN 12334 Swing Check Valve (H44X, H44T), PN10/16

BS Standard Check Valve • Statement: Check valves serve to prevent the backflow of medium in the piping system for protection of important equipments, widely used in the field of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well as chemical and energy industry. • Features: 1. Material: Ductile Iron EN-GJS-450-10 Valve body, bonnet, disc are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance. 2. Fusion bonded epoxy coating Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance.

• Body & Bonnet: Ductile Iron

3. Small hydraulic friction loss with reasonable structure design

• Disc: D.I.+EPDM or D.I. + Bronze

H44X

or Stainless Steel Sealing


• Bronze or Stainless Steel Seat • Fusion Bonded Epoxy Coating

Part No.

• ConnectionEnds:Flangeto BSEN 1092-2:1997

H44X Swing Check Valve Page 23

H84X Grooved Resilient Swing Check Valve Page 24

H44J Rubber Disc Swing Check Valve Page 25

HC41X Silent Check Valve Page 26

1

Part


Valve Body

EN-GJS-450-10

Options

AISI304,AISI316PressedFit or Threaded


2

SeatRing

Brass Hpb59-1 (Pressed Fit)

• Temperature Range: Rubber Seal: 0℃- 80℃, Metal Seal: -10℃- 350℃

3

Disc

EN-GJS-450-10+EPDM

4

ClapperArm

• Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550 or painting upon request

5

Washer

SS420

6

Nut


7

Hinge Pin

SS420

8

Bonnet Gasket

EPDM

Graphite+Steel

9

Bolt


SS304, SS316

10

Washer


SS304, SS316

11

Bonnet

EN-GJS-450-10

12

Plug

Malleable Iron Galvanized

DH77X Double Door Wafer Check Valve Page 27

EN-GJS-450-10 SS304, SS316

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list. DN

Dimensions(mm) PN

Inch

mm

D

D1

2"

50

10/16

D2

b

n-d

f

203

165

125

99

19

4-19

3

146

2.5"

65

3"

80

10/16

216

185

145

118

19

4-19

3

155

10/16

241

200

160

132

19

8-19

3

4"

173

100

10/16

292

220

180

156

19

8-19

3

180

5"

125

10/16

330

250

210

184

19

8-19

3

212

6"

150

10/16

356

285

240

211

19

8-23

3

260

10

495

340

295

266

20

8-23

3

290

16

495

340

295

266

20

12-23

3

290

10

622

405

350

319

22

12-23

3

339

16

622

405

355

319

22

12-28

3

339

10

698

460

400

370

24.5

12-23

4

376

16

698

460

410

370

24.5

12-28

4

376

8"

200

10"

250

12"

O

H

300

BS VALVES

Grooved Resilient Swing Check Valve (H84X), PN10/16

BS EN 12334 Rubber Disc Swing Check Valve (H44J), PN10/16


Part


1

Valve Body

EN-GJS-450-10

2

Hinge Pin

SS420

3

Spring

SS304

4

Eye Bolt

Carbon SteelZinc Plated

5

Disc

EN-GJS-450-10

SS304

6

Disc Sealing Ring

EPDM


7

SeatR n ig

ASTM B62 C83600 (Pressed Fit)


8

Plug


NBR SS304, SS316PressedFit or Threaded Bronze ASTMB584


9

Plug


Bronze ASTMB584

• Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550 or painting upon request

10

Plug


Bronze ASTMB584


11

Plug


Bronze ASTMB584

12

Bolt

SS304

SS316


13

Washer

SS304

SS316

14

Nut

SS304

SS316

H84X

Options

SS316

H44J MATERIALSPECIFICATION Part No.

Part


1

Valve Body

EN-GJS-450-10


2

Bolt


3

Washer


SS304, SS316

4

Disc

Carbon Steel +EPDM

Carbon Steel+NBR

5

Bonnet

EN-GJS-450-10

6

Bonnet Gasket

EPDM

7

Plug


Dimensions(mm) PN

Inch

mm

2"

50

16


SS304, SS316

Bronze ASTM B584



Options

DN Inch

mm

2"

50

PN

Dimensions(mm) L

D

D1

d

C

T

n-φL

10/16

203

165

125

99

19

3

4-Φ19

L

D1

D2

B

C

2.5"

65

10/16

216

185

145

118

19

3

4-Φ19

171

57.15

60.3

7.93

15.88

3"

80

10/16

241

200

160

132

19

3

8-Φ19

4"

100

10/16

292

220

180

156

19

3

8-Φ19

6"

150

10/16

356

285

240

211

19

3

8-Φ23

8"

200

10

495

340

295

266

20

3

8-Φ23

16

495

340

295

266

20

3

12-Φ23

10"

250

10

622

405

350

319

22

3

12-Φ23

16

622

405

355

319

22

3

12-Φ28

12"

300

10

698

460

405

370

24.5

4

12-Φ23

16

698

460

410

370

24.5

4

12-Φ28

2.5"

65

16

184

69.09

73

7.93

15.88

2.5"

65

16

184

72.26

76.1

7.93

15.88

3"

80

16

197

84.94

88.9

7.93

15.88

4"

100

16

210

110.08

114.3

9.53

15.88

5"

125

16

248

135.48

139.7

9.53

15.88

5"

125

16

248

137.03

141.3

9.53

15.88

6"

150

16

324

160.90

165.1

9.53

15.88

6"

150

16

324

163.96

168.3

9.53

15.88

8"

200

16

371

214.40

219.1

11.13

19.05

10"

250

16

457

268.28

273.0

12.70

19.05

12"

300

16

535

318.29

323.9

12.70

19.05

BS VALVES

Silent Check Valve (HC41X), PN10/16

Double Door Wafer Che ck Valve (DH77X), PN10/16

HC41X

DH77X


• Connection Ends: Flange to BS EN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: 0℃- 80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550

Part


Options


1

Valve Body

EN-GJS-450-10

2

Stem

SS420

3

Hinge Bushing

Brass Hpb59-1

4

Spring

SS304

SS316

5

Nut

SS304

SS316

6

Disc

EN-GJS-450-10

7

O-Ring

EPDM

8

Hinge bushing

Brass Hpb59-1

9

Seat

EN-GJS-450-10

10

O-Ring

NBR

EPDM

11

Screw


SS304, SS316

SS304, SS316, SS431

• Connection Ends: BS EN 1092 PN10/PN16, AS 2129 TABLE E, JIS B221210K, BS10 TABLED/E

Part


1

Valve Body

EN-GJS-450-10

2

Disc

EN-GJS-450-10+EPDM

SS304, SS316, AL-Bronze UNC95400

3

Stem

SS420

SS304, SS316, SS416

4

Spring

SS304

SS316

5

Rubber Seat

EPDM

NBR

• Working Pressure: PN10/PN16 • Temperature Range: 0℃- 80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550

NBR

DN Inch

Dimensions(mm)

Options



Part No.

mm

PN

Dimensions(mm) L

D

D1

D2

2"

50

10/16

54

107

64

46

Inch

mm

L

D

D1

D2

C

T

n-φL

2.5"

65

10/16

54

127

78

60

2"

50

120

165

125

99

19

3

4-Ø19

3"

80

10/16

57

142

94

70

2.5"

65

135

185

145

118

19

3

4-Ø19

4"

100

10/16

64

162

117

84

3"

80

155

200

160

132

19

3

8-Ø19

5"

125

10/16

70

192

145

115

4"

100

165

220

180

156

19

3

8-Ø19

6"

150

10/16

76

218

170

134

5"

125

190

250

210

184

19

3

8-Ø19

8"

200

10/16

95

273

224

184

6"

150

210

285

240

211

19

3

8-Ø23

10"

250

10/16

108

328

265

220

8"

200

260

340

295

266

20

3

12-Ø23

12"

300

10/16

143

378

310

260

10"

250

285

405

355

319

22

3

12-Ø28

14"

350

10/16

184

438

360

302

12"

300

315

460

410

370

24.5

4

12-Ø28

16"

400

10/16

191

489

410

350

BS VALVES

Y-Type Strainer (V4), PN10/16, UL Listed

BS Standard Y-Type Strainer • Statement: Installed before relief valves, atmospheric valves, hydraulic control valves as well as other equipments, strainers serve to filter out the impurities in the flow medium for protection of valves and equipments in the piping system. • Features: 1. Material: Ductile Iron EN-GJS-450-10 Valve body and cover are produced in ductile iron material which provides guarantee for high strength and good corrosion resistance. 2. Different Options of Screen Mesh Specification Different options of screen mesh specification available as per different service conditions. 3. Fusion Bonded Epoxy Coating Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance. • Ductile Iron Body & Bonnet


V4

Part N o.

Part

St andard Specificat o in

1

Val ve Body

EN-GJS- 450-10

2

Screen

SS304 (Perforated)


3

Gasket

EPDM


4

Bonnet

EN-GJS-450-10

5

Plug


Bronze ASTM B584

6

Bolt


SS304, SS316

7

Fl at Washer

Car bon St ee l Zi nc Pl at ed

SS304, S S316

• Stainless Steel Screen • Fusion Bonded Epoxy Coating • Gasket: EPDM or Graphite + Acanthopore Plate

• Temperature Range: 0℃- 80℃ rubber gasket, -10℃- 350℃ graphite gasket • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550

SS304,SS316(Perforated,Knitted, DoubleScreen) Graphite+Acanthopore Plate

STANDARDSCREEN DN

Sieve No.

Inch

mm

2"~2.5"

50~65

25

3"~4"

V4 Y-Type Strainer Page 29

Options

H ol e D ia .

F re e F lo w A re a( %)

mm

%

4

48

5

59

80~100

19

5"

125

14

6

63

6"~12"

150~300

13

6.3

64


V8 Grooved Y-Type Strainer Page 30

DN Inch

mm

1.5"

40

PN

10/16

Dimensions(mm) L

D

D1

D2

b

n-Φd

f

H

200

150

110

90

19

4-Φ19

3

140

2"

50

10/16

230

165

125

99

19

4-Φ19

3

140

2.5"

65

10/16

290

185

145

118

19

4-Φ19

3

175

3"

80

10/16

310

200

160

132

19

8-Φ19

3

198

4"

100

10/16

350

220

180

156

19

8-Φ19

3

229

5"

125

10/16

400

250

210

184

19

8-Φ19

3

287

6"

150

10/16

480

285

240

211

19

8-Φ23

3

304

3

370.5

3

469

4

540

4

625

4

715

8"

200

10"

250

12"

300

14"

350

16"

400

10 16 10 16 10 16 10 16 10 16

600

340

730

405

850

460

838

520

864

580

295 350 355 400 410 460 470 515 525

266

20

319

22

370

24.5

429

26.5

480

28

8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31

BS VALVES

Grooved End Y-Type Strainer (V8), PN10/16/25

CapPlug(BrassH62)

Hydraulic Control Valves, PN10/16/25

UpBonnet( EN-GJS-450-10) UpGland (EN-GJS-450-10) Diaphragm(EPDM) BottomGland(EN-GJS-450-10) Bushing(Brass H62)

• Connection Ends: Groove to ISO6182 • Statement The hydraulic control valve was initially originated in Holand, Israel and Denmark, used for agricultural irrigation. Later the product was introduced into the United Sates, Canada and Asian countries. It was from the 1990s when the product first entered China, and ever since its entrance it gets rapidly developped and widely applied in different industrie aside fromirri gation.

• Working Pressure: PN10/PN16/PN25 • Temperature Range: 0℃- 80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWAC550 or painting upon request

Part


1

Valve Body

EN-GJS-450-10

2

Screen

3

Rigid Coupling

EN-GJS-450-10

4

Cap

EN-GJS-450-10

5

Plug


SS304

Options

SS316

BronzeASTMB584

STANDARDSCREEN DN

H ol e D ia .

F re e F lo w A re a( %)

mm

%

25

4

48

80~100

19

5

59

5"

125

14

6

63

6"~12"

150~300

13

6.3

64

Sieve No.

Inch

mm

2"~2.5"

50~65

3"~4"

Stem(SS304) Bolt( SS304) Spring(StainlessSteel4Cr13) MainDisc (EN-GJS-450-10) MainGasket(EPDM) Glandof MainDisc (EN-GJS-450-10) Seat(SS304)

The hydraulic control valve produced by Jinan Meide is newsty le that absorbed the essence of other well-known brands which makes it better in energy saving, consumption reducing and accurate adjusting achieving. The MECHbrand hydraulic control valves have been widely used in China, Europe and South East Asian countries in pipe system of irrigation, water supplying, fire protection and air conditioning which has mediumof water under 80℃ or other mediumwith similar physical and chemical property as water.


MiddleBonnet (EN-GJS-450-10)

• Specifications Basic Valve: Y-Type Direct-flow Connection Ends: Flange to BS EN 1092-2:1997 Temperature Range: 0℃- 80℃ (0 - 180℉)

ValveBody( EN-GJS-450-10)

Water HeadLoss ( psi)

DN50 DN65

F l o w R a t e ( g p m )

Working Pressure: PN10/PN16/PN25 Testing Standard: API 598 • FlowDiagramof Basic Valve

DN80

DN100 DN125 DN150

DN200 DN250

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list. DN Inch

Importantnotes: 1.The products listed in this catalogue are intended to be assembled only in pipelines of same or lower pressure ratings and properly installed. In case of special request, please contact with factory for support and confirm. 2.It can happen that the catalogue might not be updated while product design improved. In this case, design of the product should be as confirmed when order placed. 3.Jinan Meide Casting Co., Ltd. reserves the right for construe of the information provided in t his catalogue

DN300 DN350 DN400 DN450 DN500 DN600

Dimensions(mm) mm

L

OD

d

A

B

7.92

2"

50

247.5

60.3

57.15

15.88

2.5"

65

273

73

69.09

15.88

7.92

2.5"

65

273.0

76.1

72.26

15.88

7.92

3"

80

298.5

88.9

84.94

15.88

7.92

4"

100

362.0

114.3

110.08

15.88

9.52

5"

125

419.0

139.7

135.48

15.88

9.52

5"

125

419

141.3

137.03

15.88

9.52

6"

150

470.0

165.1

160.90

15.88

9.52

6"

150

470.0

168.3

163.96

15.88

9.52

8"

200

609.5

219.1

214.40

19.05

11.13

10"

250

686.0

273.0

268.28

19.05

12.70

12"

300

762.0

323.9

318.29

19.05

12.70

DN Inch

mm

2" 2.5" 3" 4" 6"

50 65 80 100 150

8"

200

10"

250

12"

300

14"

350

16"

400

18"

450

20"

500

PN

10/16 10/16 10/16 10/16 10/16 10 16 10 16 10 16 10 16 10 16 10 16 10 16

DN

50

65

80

100

125

150

200

250

300

350

400

450

Kv

41

53

105

175

285

402

730

1160

1400

1770

3010

3225

500

3395

Dimensions(mm) L

H

D

D1

d

C

T

n-ΦL

203 216 241 292 356 495 495 622 622 698 698 787 787 914 914 978 978 1100 1100

170 195 215 255 360

165 185 200 220 285 340 340 405 405 460 460 505 520 565 580 615 640 670 715

125 145 160 180 240 295 295 350 355 400 410 460 470 515 525 565 580 620 625

99 118 132 156 211 266 266 319 319 370 370 429 429 480 480 530 548 582 609

19 19 19 19 19 20 20 22 22 24.5 24.5 24.5 26.5 24.5 28 25.5 30 26.5 31.5

3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4

4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 20-Φ28 20-Φ31 20-Φ28 20-Φ34

450 550 645 700 790 850 900

BS VALVES

SK710X Electromagnetic Control Valve

1. Statement

4. Typical installation illustration

SK710X Electromagnetic Control Valve is a diaphragm type of hydraulic control val ve driven by the hydraulic pressure within the piping system. This type of valve is widely applied in the field of piping system optimization, pressure division, water reservoir (tank) backup, change of industrial valves, etc., with its closing and opening remotely controlled by electric signal. 2.Operationalprinciple SK710XEl ectromagnetic Control Valve is contr olled by solenoid valve and equipped with normally open (or normally closed) two positions two ways or two positions three ways solenoid pilot valve, needle valve, mini strainer and ball valve, etc. When the normally open solenoid valve is applied, the main valve in most cases will be in open position. When there is pressure coming from the flow direction, Pressure P1 enters the upper cavity room of the valve through the guide tube and then comes to the low pressure area through the normally open solenoid valve. In this way the upper cavity room is not able to form confined space and the disc of the main valve will be opened at the pressure of P1. When the normally open solenoid valve is closed, pressure P1 will be accumulated inside the upper cavity which will gradually push the membrane to close the disc and the valve. For normally closed solenoid valve, the main valve will be in most cases closed and operation principle same as stated above. The application of the solenoid valve depends on the working environment. In case the water inside the piping systemar e highly corrosive or with high deposits, user can choose also to control the valve with medium from outside. It's up to the option of the client, depending on different working conditions. 3.Property and advantages • Driven by pressure of pipe system, work automatically without any power-generating. It saves installation and repairing space. • Controlled by solenoid valve, save energy and wiring costs, can be used for large range of pressure and voltage. • Series of mode of execution can be changed to hand control, normally closed solenoid valve control or normally open solenoid valve control, etc. • Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure fluctuation, and the diaphragm with support is well protected. • Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow.

5. Common problems and proposed solutions Common Problems

Proposed Solutions

Pressurize in front of the valve but valve can't be opened when chooseconditionof normallyopenand nopower.

Check if needle valve or ball valve in front of the basic valve is opened. If not, pleaseopen it.

The basic valve can't be closed when choose normally open and shutdownthe power.

Check condition of wiring, make sure action in place and for the solenoidvalveandsealingis good conditionfor thesolenoid valve. Checkif there's sundriesblockedinside the basic valve.Wash the mini strainerbeforebasic valveand makesureit's unblocked.

Pressure in front and the valve can't close complete with leakage whenchooseconditionof normallycloseand nopower.

Checki f anydamageor blockson thesealing surfaceof basicvalve.

No water after valve, valve i s not open when choose condition of normally close and electrified.

Check if solenoidvalve is in goodworkingcondition. Checkif needle valveor ball valveis openin front of thevalve.

• Long pitch orientation design for stem move, stable and no gap resistance. • Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Good connection without leakage. • Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory. • Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other rustresisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS, NSF61.

BS VALVES

SK720X Pressure Reducing Valve

1.Statement

4.Typicalinstallation illustration

SK720X Pressure Reducing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. The function of the valve is to reduce the high pressure to the pre-set low pressure, and despite the fluctuation of medium flow or pressure before the valve the pressure after the valve will always remain stable and maintain the set pressure range. 2.Operational principle SK720XPress ure Reducing Valve is controlled by pressure reducing pilot valve and equipped with pressure reducing pilot valve, needle valve, mini strainer and ball valve, etc. Under normal conditions, water flow comes continuously from the inlet opening to the upper cavity room (2) of the basic valve through the needle valve (1); When the pressure before the pilot valve (3) is lower than its pre-set value, the pilot valve will remain at full open position and the upper cavity roomof the basic valve is not able to get accumulating pressure. Under this condition, the disc of the basic valve will be open at the water pressure from the inlet opening to allow water flow. The pressure reducing pilot valve closes gradually when the pressure after pilot valve exceeds its pre-set value. Pressure gets accumulated within the upper cavity roomand membrane drives the disc down to close the valve till the pressure after the pilot valve gradually reduces to its pre-set value. The pilot valve opens again when the pressure after the valve becomes lower than the pre-set value, and the basic valve will then open with the release of the accumulated pressure in the upper cavity room. The throttle orifice (5) that connects the lower cavity to the outlet serves to keep the reaction of the valve gentle and stable. The ball valve (4) controls the outlet water flow rate from the upper cavity room and thus to stabilize the action of the basic valve. The ball valve can be adjusted with different working conditions. In case of emergency, the ball valve can also be closed manually for cutting off of the basic valve.

5.Basic Parameters Pressure

Symbol

3.Property and advantages • Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy conservation and environment protection.

Max. Inlet pressure

P1max

Min. Inlet pressure

P1min

• Controlled by the pilot valve, lower energy consumption, achieve accurate pressure reducing results, have function of stabilizing pressure after the valve.

Max. Outlet pressure

P2max

Min. Outlet pressure

P2min

• Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure fluctuation, and the diaphragm with support is well protected.

Characteristics of flow deviation Pressurecharacteristic deviation

• Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to keep stability of pressure after the valve, avoid any vibration and noise. • Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of cavitation. • Long pitch orientati on design for stemmove, st able and nogap resistance.

Min.pressuredeviation

• Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other r ustresisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,NSF61.

Unit PN10

PN16

PN25

1.0

1.6

2.5

P2max + 0.2 0.8 MPa

1.0 0.05

ΔP2Q

≤10%

ΔP2p

≤5%

ΔPmin

0.2

1.6

All the Pressure Reducing Valves have been finished initial debugging tests before delivery. Further dubugging test is also suggested during using according to different working conditions. After the pipe systembecomes stable, please loose the adjusting screwon the top of pilot valve to the top-most position. Tighten adjusting screwof pilot valve in clockwise slowly. When outlet pressure increase to the set pressure please fasten the locknut under the adjusting screw. If go beyond the set pressure during adjusting, please repeat the above steps. Remember, pressure can be only adjusting from low level to high level and pay attention to make the adjusting slowly.

7.Common problems and proposed solutions

• Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Goodconnection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure. • Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

6.Notes for installation and debugging Nominal Pressure

Common Problems

Proposed Solutions

Outlet pressureis similar withinlet pressure, nopressurereduction.

a.Checki f anysundries onthe sealingsurfaceof basicvalveor pilot valve. b.Checki f anydamageon thesealing surfaceof basicvalveor pilot valve. c.Checki f anydamage or fatigueonspring of basic valveor pilot valve. d.Checki f anydamageor fatigueon diaphragmof basic valveor pilot valve. e.Checki f anycorrosionor blockingon stemof basicvalveor pilot valve.

Strongvibrationand noise.

a.Closetheneedlevalvebeforethe basicvalveandopen1/4turnsslowly. Openthe bighex screwonthe topof bonnet,releaseair. Adjust theneedlevalve oninlet conduitslowly until novibration. b.Calculate the flow again and collect proper size of valve or add throttling set.

Pressureafter thevalveis not stable.

a.Check if pressure is fluctuating strongly at inlet. Try to keep it within small range. b.Check if required flow is too different than actual flow, recalculate flow and choose new valvewith proper size.

BS VALVES

SK730X Pressure Relief & Sustaining Valve

1.Statement


SK730X Pressure Relief & Sustaining Valve is a diaphragmt ype of hydraulic control valve driven by the hydraulic pressure within the piping system. One prominent feature of the valve is, it can serve as pressure relief valve and sustaining valve at the same time. As pressure relief valve, it releases the high pressure before the valve out of the piping systemf or protection of t he pipes and the equipments when the pressure exceeds its pre-set value; As pressure sustaining valve, it maintains the water pressure above certain set value for guarantee of water supply to upstreamarea 2.Operational principle SK730X Pressure Relief & Sustaining Valve is controlled by pressure relief/sustaining pilot valve and equipped with pressure relief/sustaining pilot valve, needle valve, mini strainer and ball valve, etc. As Pressure relief valve, the valve is connected with branch pipe and directed to lower pressure area or drainage ditch. In normal working conditions, water flow enters the upper cavity room (2) through needle valve (1). When the pressure before the pilot valve (3) is lower than its pre-set value A, the pilot valve will remain closed and the water that enters the upper cavity room drives the membrane down and closes the disc and the basic valve. The pilot valve opens when the pressure before the valve exceeds its pre-set value and the pressure accumulated in the upper cavity room gets released. Under the pressure fromt he inlet opening, the disc of the basic valve opens. In this way the pressure within the piping systemwill be maintained under the pre-set value A. Aspressure sustaining valve, the valve isconnectedin series with themain pipe andserves tomaintainthe pressure before valve above the set value B. Under normal conditions, water flow comes continuously from the inlet opening to the upper cavity room (2) of t he basic valve through the needle valve (1); When the pressure before the pilot valve (3) is lower than its pre-set value, t he pilot valve will remain closed and the water that enters the upper cavity room drives the membrane downand closes the disc and the basic valve for accumulation of pressure till equals to the set value B. The pilot valve opens when the pressure before the valve exceeds its pre-set value and the pressure accumulated in the upper cavity room gets released. Under the pressure from the inlet opening, the disc of the basic valve opens to allow water flow. In this way the pressure within the piping systemwill be maintained under the pre-set value B. 3.Property and advantages • Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy conservation and environment protection. • Controlled by pilot valve, lower energy consumption, achieve accurate pressure relief and pressure holding results, reliable and safe. • Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure fluctuation, and the diaphragm with support is well protected. • Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to keep stability of pressure after the valve, avoid any vibration and noise. • Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of cavitation. • Long pitch orientation design for stem move, stable and no gapresistance.

For Pressure Relief

For Pressure Sustaining

5.Basic Parameters

6.Notes for installation and debugging Norminal Pressure

Pressure

Set Pressure

Symbol

Ps

Unit

MPa

Set Pressure Difference

PN10

PN16

PN25

≤0.83

≤1.33

≤1.7

Ps＜0.5: ±0.014MPa; Ps≥0.5: ±3%Ps

Open/Close Pressure Difference

ΔPb

Ps＜0.3: 0.06MPa; Ps≥0.3: 20%Ps

Discharge pressure

Pd

≤1.2Ps

• Good corrosion resist ance, with stainless steel , copper alloy, rubber made from DuPont and other rustresisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,NSF61.

After the pipe system becomes stable, please loose the lock nut under adjusting screw, open the ball valve or needle valve (1) slightly, when pressurize, adjust the adjust screw on pressure relief pilot valve and fasten the lock nut when it achieves pressure required. Pay attention that when adjust pressure relief pilot valve, clockwise is for increasing pressure and anti-clockwise is for reducing pressure.

7.Common problems and proposed solutions Common Problems

Proposed Solutions

Thepressureof pipesystemis lower thanset-pressure, thevalvedosenot close.

a.Checki f anysundries onthe sealingsurfaceof basicvalveor pilot valve. b.Checki f anydamageon thesealing surfaceof basicvalveor pilot valve. c.Checki f anydamage or fatigueonspring of basic valveor pilot valve. d.Checki f anydamageor fatigueon diaphragmof basic valveor pilot valve.

Thepressureof pipesystemis higher thanset-pressure, thevalvedosenot open.

a.Checki f ball valve(4) isclosed, if yes, pleaseopen it. b.Checki f anyblocksin basicvalveor on stemof pilot valve, if yes, pleaseremovethe block or changenew stem. c.Checki f locknut andadjust screwwereadjustedwrongly, pleasetry to repeat all theactions.

• Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Goodconnection without leakage. • Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory.

All the Pressure Relief & Sustaining Valves have been finished initial debugging tests before delivery and the set-pressure is 0.6MPa. Further debugging test is also suggested during using according to differentworkingconditions.

BS VALVES

SK750X Remote Float Control Valve

1.Statement


SK750X Remote Float Control Valve is a diaphragmt ype of hydraulic control valve driven by t he hydraulic pressure within the piping system, designed with adjustable parallel float. The valve is capable to maintain the water surface at set position despite the fluctuation of flow rate and widely applied where there is water reservoir or water box for injection of water. 2.Operational principle SK750X Remote Float Control Valve is controlled by angle valve, float and ball lever, and equipped with needle valve, mini strainer and ball valve, etc. Under normal conditions, water flow comes continuously from the inlet opening to the upper cavity room (2) of the basic valve through the needle valve (1); When the float is not reaching the set position, the angle valve 4 remains open. The water that enters the upper cavity room of the basic valve discharges into the water tank and no accumulation within. Under this condition, the disc of the basic valve remains open at the water pressure from the inlet opening to allowwater supply to the water tank. With the raising of t he water surface, the float (6) gradually raises and closes the angle valve (4). Pressure gets accumulated within the upper cavity room and drives the membrane down to close disc and the basic valve gradually. When the water surface reaches the set position, the angle valve close completely and so with the basic valve and the water supply stops. When water position declines, the pressure within the upper cavity room gets released through the angle valve and the basic valve opens to continue with water supply. Needle valve (1) serves to control the closing speed of the valve to prevent formation of water hammer; In case the float is not working, ball valve (3) can close the basic valve for emergency cut-off. 3.Property and advantages • Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy conservation and environment protection. • Controlled by angle valve and float, lower energy consumption, achieve accurate level limit, slowly shut and avoid close valve water hammer. • Separate angle control, including separate angle valve, ball lever and float, can be installed separately with basic valve, suitable for limited installation and repairing space, avoid influence to level measuring by the wave beside inlet water. • Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure fluctuation, and the diaphragm with support is well protected. • Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to keep stability of pressure after t he valve, avoid any vibration and noise. • Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of cavitation. • Long pitch orientat ion design for stemmove, stable and no gap resistance. • Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Goodconnection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure. • Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory. • Good corrosion resistance, with stainless steel, copper alloy, rubber made fromDuPont and other rustresisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other inter national specifications like WRAS,NSF61.

5.Technical Parameter Accuracyof SurfaceControl: ±25mm


Proposed Solutions

Basic valvedoes not close whenwater meets specified level and continue to supplywater.

a.Checki f anysundries onthe sealingsurfaceof basicvalveor pilot valve. b.Checki f anydamageon thesealing surfaceof basicvalveor pilot valve. c.Checkif block onlever of controlling anglevalve. d.Check if ball lever has been corrosive and float missing. e.Checki fany damagefor diaphragm. Duringthe checking,pleasecloseballvalve(3),if thebasicvalvewasclosed,pleasejustdisregardmethodof a,b ande andonlycheck sealingsurfaceof anglevalve andball lever. If thebasicvalve doesnot closewhenclose ball valve (3), please cut off thewater supplyand checksealingsurfaceof basic valve, diaphragmandstem. If anydamagedparts, pleasechangenewone.

Level adjusting is not accurate and float jumpsstrongly.

a.Check if the float was installed close to water outlet. If yes, please move it to far away from the water outlet. Or you can use barrel to avoid theaffection of thewave. b.Check the location of float and make sure the top-most position which float can catch is the set-level of the water box.

Reasonablesuggestion

Tomakesure water won't exceedset-level double insurancesis recommended. That's to assemble twoposition two-way solenoidvalve beforethe controllingangle valveto makesurethat thevalve canbe closedin caseof emergency.

BS VALVES

SK760X Slow Shut Control Valve (Pump Control Valve)

1.Statement


SK760X Slow Shut Control Valve (Pump Control Valve) is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system, widely applied in the pump outlet for prevention of medium back-flow, pressure fluctuation and water hammer formation. Under normal working conditions, pressure before the valve is higher than pressure after, and the valve remains fully open. When pressure after valve exceeds pressure before valve, the valve is capable to be closed rapidly to prevent backflow of water and protect the pump and piping system. The design of the valve incorporates the function of slowopening, quick closing, slow closing and water hammer absorption, no large pressure fluctuation within the system. 2.Operational principle SK760X Slow Shut Control Valve (Pump Control Valve) is composed of needle valve (or ball valve), mini strainer and ball valve, etc. Before the pump starts, there is no pressure before the valve, and disc (5) is closed under the pressure fromt he spring. With the start of the pump, the pressure before the valve increases gradually. At the same time, the pressure water enters the lower cavity room(2) through the needle valve (1) (or ball valve). The two combined force opens the disc of the basic valve rapidly to allow water supply. When the pump stops (as planned or out of accident), pressure before the valve suddenly declines. Pressure after valve exceeds that before the valve. As a result, the higher pressure flows back to the upper cavity room through the needle valve (4) (or ball valve) and gets accumulated to drive the membrane down to close the valve disc (5). The pressure within the lower cavity room (2) discharges to the lower pressure area before the basic valve through needle valve (1) (or ball valve) , which slows down the closing process to prevent formation of water hammer. The opening andclosing speed of the valve can be controlled by adjustment of the needle valve (1) & (4) (or ball valve). The valve is designed with dual disc, especially good for working in complicated piping system and working conditions where there is tremendous pressure and water back-flow. 3.Property and advantages

5.Technical Parameter

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy conservation and environment protection.

Pressure


Min Closing Pressure

Pg

MPa

≤0.05

Slow-shut Time

t

s

2～60

• Stable when open and close, the speed of opening and closing can be adjusted according to working conditions to avoid pressure fluctuation and water hammer. It can achieve real silence. • Dual disc, cus tomer can choose designof main disc + seconddisc. Main disc will fall f reely with its weight when pump stop working, then 90% of inlet of basic valve will be will closed, the water will not cause pump reversing. The second disc will close the 10% left slowly by the pressure of controlling cavity then huge energy of water hammer will be eliminated. • Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of cavitation.

Norminal Pressure Symbol

• Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory. • Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other r ustresisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,NSF61.

Unit PN10

PN16

PN25

Note: Slow-shut timecanbe adjustedasper request


Proposed Solutions

Strongvibration andnoise whenstart-up thepump.

a.Checki f there'sgas in theupper cavityroom. Loosethe hexbrassnut onthe topof bonnet to dischargegas. b.Adjust theneedle valveor ball valve(1) at inlet to proper openingspeed. c.Recalculate the flow and choose new valve with proper size or add throttling set.

Strong vibration and noise when stop thepump.

a.Adjust needlevalve or ball valve(4) to proper closingspeed. b.Consider to choosedesignof dual discs.

Valvedoes not work and causepump's reversing.

a.Checki f there'ssundrieson thesealing surfaceof maindisc or seconddisc. b.Checki f damageon sealingsurfaceof maindisc or seconddisc. c.Checkif stemcorrodedorblocked. d.Checki fdamageon diaphragm. If anydamagedparts found, pleasechangenew one.

• Long pitch orientat ion design for stemmove, stable and no gapresist ance. • Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Goodconnection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure.

BS VALVES

SK780X Pressure Differential By-pass Balancing Valve

1.Statement


SK780XPressure Differential By-pass Balancing Valve is a diaphragmtype of hydraulic control valve driven by the hydraulic pressure within the piping system, widely applied in HVAC system for guarantee of flow stability in the air conditioning, refrigeration and heating system and pump working. The valve prevents the effect on the other pipe branches when there is fluctuation on one branch by balancing of pressure in the radiant and distribution water manifold, thus to protect the efficient and safe working of the refrigeration set or heating set. 2.Operational principle SK780X Pressure Differential By-pass Balancing Valve is composed of pressure balancing pilot valve, needle valve (or ball valve), mini strainer and ball valve, etc. SK780X Pressure Differenti al By-pass Balancing Valve is install ed between radiant and distribution water manifold (water supply and water return). Water flow enters continuously from water supply duct to the valve inlet and then to the upper cavity room (2) through needle valve (1) (or ball valve). Pilot valve (3) is connected to the water supply duct and return duct by guide tube (4) and (5) to sensing of the pressure difference and adjustment of the opening position of the pilot valve accordingly. When the pressure difference is large, pilot valve opens broadly, the pressure inside upper cavity room (2) declines and the basic valve opens broadly. As result the water flow between the supply and return duct increase and the entire system gets balanced. When the pressure difference is small, pilot valve (3) t urns to close at the pressure of the spring, the pressure inside upper cavity room (2) increase and the basic valve turns to close. As result the water flow between the supply and return duct decreases and the entire system also gets balanced. 3.Property and advantages • Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy conservation and environment protection. • Dual cavity design, with functions of fully opening and fully closing. Slow shut causes no pressure fluctuation, and the diaphragm with support is well protected. • Antenna type of conduit, See No.4 and 5 conduit, connect wit h water knockout drum and water collector (supplying pipe and return pipe), can achieve accurate and reliable adjusting. • Have internal orifice, connect bottom cavity and outlet of the basic valve, make sure stability of reaction to keep stability of pressure after the valve, avoid any vibration and noise. • Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of cavitation. • Long pitch orientation design for stem move, stable and no gapresistance. • Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Goodconnection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure. • Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory. • Good corrosion resist ance, with stainless steel , copper alloy, rubber made from DuPont and other rustresisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,NSF61.

5.Notes for installation and debugging The valve has been finished initial debugging tests before delivery. Further debugging test is also suggested during using according to different set-conditions. Over reviewpressure meter of water knockout drumand water collector, adjust pilot valve (3) according to set-difference of pressure. Clockwise is for increasing the pressure difference and anti-clockwise is for reducing pressure difference when set adjusting screwon the top of pilot valve. When adjusting is done, fasten the lock nut. Then you'll got set-difference for t he pressure no matter howt he pressure of pipe systemchanges. Adjust needle valve (ball valve) can achieve different movement speed for the basic valve. Normally, it has been adjusted well before delivery. No further adjusting suggested if no special notice. 6.Common problems and proposed solutions Common Problems

Proposed Solutions

Pressuredifference is smaller than set-value and does not reachthe set-difference.

a.Checkif anysundrieson thesealing surfaceof basicvalveor pilot valve. b.Checkif anydamageon thesealing surfaceof basicvalveor pilot valve. c.Checkif needle valve(ball valve) (1) wasclosed or almost closed. If yes, pleaseopenit.

Pressure difference is bigger than set-value and does not reachthe set-difference.

a.Checkif ball valve(6) at outlet was closed. If yes, pleaseopenit. b.Checkif there's anyblock for pilot valve.

BS VALVES

SK790X Deluge Alarm Valve

1.Statement


SK790XDeluge AlarmValve is a diaphragmtype of hydraulic control valve driven by the hydraulic pressure within the piping system, functioning as flow control and alarming device in the sprinkler and pre-action system, i.e. to start the sprinkler system for quenching of the fire and send out fire alarm through the fire bell when there is fire detected. 2.Operational principle SK790X Deluge Alarm Valve is equipped with solenoid, anti-reset controller, mini str ainer, ball valve and pressure gauge, etc.. For deluge valve there is set condition and work condition. When the valve is under set condition, ball valve (3) is open, ball valve (7), solenoid (8) and remote ball valve (9) are closed, the anti-reset controller is connected, and pressure gauge (1) and pressure gauge (6) shows the same value. When ball valve (11) is open, pressure gauge (10) shows 0. Whenball valve (12) and (14) are open, (13) & (15) closed, ther e is no hydraulic pressure for pressure swit ch (17) , and alarm(18) does not work. Under set conditi on, you can operate as following if you want to test the pressure switch alarmdevice (17) and water motor alarm(18): close ball valve (14) and open (15), and then close (15) and open (14) after testing. In case there is fire detected, the following 3 methods will set the deluge valve into work condition immediately, A: Opening solenoid valve (8) B: Opening ball valve (7) C: Opening remote ball valve (9). Any of the above 3 methods can get the pressure within the control room of the basic valve released rapidly to open the valve and set it into working condition. At this time the sealing ball of anti-reset controller makes controller in a shutdown state, water will pass through the main valve, ball valve (12), (4), pressure switch (17), fire bell (18), the pressure switch bell sends out signal alarms. After fire fighting, close ball valve (7), solenoid valve (8), remote valve (9), press the anti-reset controller handle till the pressure gauge (6) and pressure gauge (1) shows thesame value. Thedeluge alarm valves returns to set condit ion.

5.Notes for installation and debugging Please check if pressure switch and alarm bell are in good condition before installation. Make sure water can not leak to system from water supplying systemor there's equipment to discharge the leaked water. Please adjust all the ball valves to make sure the basic valve be in set condition.

• Driven by pressure of pipe system, work automatically with energy of pipe system to achieve energy conservation and environment protection.

Make sure anti-reset controller is in good condition and seal well before installation. If there's water with pressure in front of the valve, please closed ball valve (7), (9) and electromagnetic valve when it's in empty state behind the basic valve, press the anti-reset controller, when up cavity of basic valve is full of water please check if there's any leakage behind the valve. If no leakage, it said anti-reset controller is in good condition.


6.Common problems and proposed solutions

Ball valve (2), ( 5) & (11) are normally open unless need to change the pressure gauge. 3.Property and advantages

• Triple insurance, there're three opening types used for different situation of firing. Anyone can make the valveinto workingcondition. • Anti-reset controller, hydraulic pressure type, compact design, tight sealing, operating by hand to make sure all the parts including basic valve, ball valves and conduits are all in good condition after out-fire. • Channel with straight-flow, slight friction loss, no eddy flow and turbulent flow, cut down the damage of cavitation.

Common Problems

Proposed Solutions

Press anti-reset controller after fire-out, there's still water coming out behindthe valve.

a.Checki f anysundries or damage onthe sealing surfaceof basicvalveor anti-reset controller. b.Checki f anydamageon diaphragm. c.Checki f controllingvalve(7), (8) and (9) were closedcompletely. Close themor replacewith newones.

Whenopencontrolling valve (7), (8) and (9) no water comes out from the basic valve.

a.Checki f controllingvalve(7), (8) and (9) were opened. Closethemor replacewith newones. b.Checki f there'sblock onstemof basicvalve, repair it.

• Long pitch orientati on design for stemmove, st able and nogap resistance. • Balanced automatically, big gap design on connection of disc and stem, disc is free on the vertical flat against stem, it can balance the tolerance from machining and sealing surface. Goodconnection without leakage. Achieve functions of both reducing dynamic pressure and reducing static pressure. • Ductile iron castings with nodularity higher than 90%, foundry in house with advanced melting technology and strict quality control system, testing reports and testing bars can be supplied with order. Records and testing bars maintained for one year in the factory. • Good corrosion resistance, with stainless steel, copper alloy, rubber made from DuPont and other r ustresisting material, fusion bonded epoxy coating both for interior and exterior surface of the basic valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS,NSF61.

BS VALVES

Ordering Guide of Hydraulic Control Valve

Roll Groove Dimensions

Piping system(two words) Size in mm(three digitals) Main property(three digitals) Other property(two digitals) Material of basic valve (one letter) Material of pilot valve (one letter) Pressure in bars (two digitals) ①

Water supplypiping system: WW Drinkingwater pipingsystem: WD Aggressivewater pipingsystem: WA Airconditioningwaterpipingsystem:WC Heatingpipingsystem: WH ②

050 065 080 ... 700

③

④

Basicvalve(Dual-chamber diaphragm) SK700X Basicvalve(Single-chamberdiaphragm) SK400X Basicvalve(Piston type) SK800X Electromagneticcontrol valve SK710X Pressurereducingvalve SK720X Pressurerelief &sustaining valve SK730X Remote float control valve SK750X Slowshutcontrolvalve (Pumpcont rol valve) SK760X Pressuredifferentialby-passbalancingvalve SK780X Delugealarmvalve SK790X

⑤

Noother specialrequirements 00 Specialclosingand openingspeed 03 Non-retuning 06 Withhigh sensitivepilot valve 09 Withelectromagneticvalve 12 Withelectromagneticvalve andnon-return 15 Withoverpressureprotectionpilot valve 18 Withdual-disc 21 Crackingpressurelowerthan0.05MPa 24 Withthrottle opening 27 Withindicationof position 30 Withexhaustunit 33 WithDoubleliquid level control 36 With flushing function in up chamber 39

DuctileIron Q CarbonSteel C StainlessSteel P ⑥

Al-bronze T Stainlesssteel P

Roll Grooving Machine

⑦

10 16 25

Pipe OD Nominal Size mm/in

Basic mm/in

Tolerence mm/in

Gasket seat A ±0.76/±0.03

mm/in

Groove Dia C Groove Width B ±0.76/±0.03 mm/in

Basic mm/in

Tolerence mm/in

Groove Depth MaxAllow Flare D(ref) Dia F mm/in mm/in

Min. Allow wall thickness T mm/in

25 1

33.7 1.327

+0.41 +0.016

-0.68 -0.026

15.88 0.625

7.14 0.281

30.23 1.190

-0.38 -0.015

1.60 0.063

34.5 1.358

1.8 0.071

Examples:

32 1¼

42.4 1.669

+0.50 +0.020

-0.60 -0.023

15.88 0.625

7.14 0.281

38.99 1.535

-0.38 -0.015

1.60 0.063

43.3 1.705

1.8 0.071

DN80, PN16, Dual-chamber diaphragm type remote float control valve for water supply piping system, with electromagnetic valve controlling, Ductile iron basic valve body, brass pilot valve: WW-080-SK750X-12-QT-16

40 1½

48.3 1.900

+0.44 +0.017

-0.52 -0.020

15.88 0.625

7.14 0.281

45.09 1.779

-0.38 -0.015

1.60 0.063

49.4 1.945

1.8 0.071

DN200, PN10, Dual-Chamber diaphragmt ype slow control valve for drinking water piping system, specially used for the pool water (under 0.05MPa), Stainless steel basic valve body, Stainless steel pilot valve: WD-200-SK760X-24-PP-10

50 2

60.3 2.375

+0.61 +0.024

-0.61 -0.024

15.88 0.625

8.74 0.344

57.15 2.250

-0.38 -0.015

1.60 0.063

62.2 2.449

1.8 0.071

65 2½

73.0 2.875

+0.74 +0.029

-0.74 -0.029

15.88 0.625

8.74 0.344

69.09 2.720

-0.46 -0.018

1.98 0.078

75.2 2.961

2.3 0.091

Notes for Installation of Hydraulic Control Valve

65 2½

76.1 3.000

+0.76 +0.030

-0.76 -0.030

15.88 0.625

8.74 0.344

72.26 2.845

-0.46 -0.018

1.99 0.078

77.7 3.059

2.3 0.091

• Check the uniformity of name plate, quality guarantee card and marking on valve products.

80 3

88.9 3.500

+0.89 +0.035

-0.79 -0.031

15.88 0.625

8.74 0.344

84.94 3.344

-0.46 -0.018

1.98 0.078

90.6 3.567

2.3 0.091

100 4

108.0 4.250

+1.07 +0.042

-0.79 -0.031

15.88 0.625

8.74 0.344

103.73 4.084

-0.51 -0.020

2.11 0.083

109.7 4.319

2.3 0.091

100 4

114.3 4.500

+1.14 +0.045

-0.79 -0.031

15.88 0.625

8.74 0.344

110.08 4.334

-0.51 -0.020

2.11 0.083

116.2 4.575

2.3 0.091

125 5

133.0 5.250

+1.32 +0.052

-0.79 -0.031

15.88 0.625

8.74 0.344

129.13 5.084

-0.51 -0.020

2.11 0.083

134.9 5.311

2.9 0.114

125 5

139.7 5.500

+1.40 +0.055

-0.79 -0.031

15.88 0.625

8.74 0.344

135.48 5.334

-0.51 -0.020

2.11 0.083

141.7 5.579

2.9 0.114

125 5

141.3 5.563

+1.42 +0.056

-0.79 -0.031

15.88 0.625

8.74 0.344

137.03 5.395

-0.56 -0.022

2.13 0.084

143.5 5.650

2.9 0.114

150 6

159.0 6.250

+1.60 +0.063

-0.79 -0.031

15.88 0.625

8.74 0.344

154.50 6.083

-0.56 -0.022

2.16 0.085

161.0 6.339

2.9 0.114

150 6

165.1 6.500

+1.60 +0.063

-0.79 -0.031

15.88 0.625

8.74 0.344

160.8 6.330

-0.56 -0.022

2.16 0.085

167.1 6.579

2.9 0.114

For English Speaking Service

150 6

168.3 6.625

+1.60 +0.063

-0.79 -0.031

15.88 0.625

8.74 0.344

163.96 6.455

-0.56 -0.022

2.16 0.085

170.7 6.720

2.9 0.114

R&DCenter:

200A 8

216.3 8.516

+1.60 +0.063

-0.79 -0.031

19.05 0.750

11.91 0.469

211.60 8.331

-0.64 -0.025

2.35 0.093

219.8 8.653

2.9 0.114

200 8

219.1 8.625

+1.60 +0.063

-0.79 -0.031

19.05 0.750

11.91 0.469

214.40 8.441

-0.64 -0.025

2.34 0.092

221.5 8.720

2.9 0.114

250A 10

267.4 10.528

+1.60 +0.063

-0.79 -0.031

19.05 0.750

11.91 0.469

262.60 10.339

-0.69 -0.027

2.40 0.095

270.9 10.665

3.6 0.142

250 10

273.0 10.750

+1.60 +0.063

-0.79 -0.031

19.05 0.750

11.91 0.469

268.28 10.562

-0.69 -0.027

2.39 0.094

275.4 10.842

3.6 0.142

300A 12

318.5 12.539

+1.60 +0.063

-0.79 -0.031

19.05 0.750

11.91 0.469

312.90 12.319

-0.76 -0.030

2.77 0.109

322.0 12.677

4.0 0.158

300 12

323.9 12.750

+1.60 +0.063

-0.79 -0.031

19.05 0.750

11.91 0.469

318.29 12.531

-0.76 -0.030

2.77 0.109

326.2 12.842

4.0 0.158

350 14

377.0 14.842

+1.60 +0.063

-0.79 -0.031

23.83 0.938

11.91 0.469

371.44 14.623

-0.76 -0.030

2.77 0.109

379.5 14.941

4.5 0.177

400 16

426.0 16.772

+1.60 +0.063

-0.79 -0.031

23.83 0.938

11.91 0.469

420.46 16.553

-0.76 -0.030

2.77 0.109

428.5 16.870

4.5 0.177

500 20

529.0 20.827

+1.60 +0.063

-0.79 -0.031

25.40 1.000

11.91 0.469

523.46 20.608

-0.76 -0.030

2.77 0.109

533.0 20.984

5.0 0.197

Other special requirement

99

• Clean the pipes and make sure no rocks, welding slags and other sundries. • Horizontal installation is the best choice, and other installing direction can also be chosen and work properly. • Strainer is suggested to be installed before the basic valve, besides, maintenance gate valves were also suggested to be installed before and after the basic valve. • Make sure the direction of flow is same as arrow on basic valve. • The protection plugs on the both ends are suggested to be removed just before installation to avoid sundries coming inside. • Check the connection of conduits to make sure no broken, damage and loosing after installation. • Check the repairing ball valve to make sure they're open after installation.

Sales Department:

Exporting Sales Department: Ms. Sunny Guo

Chief Engineer: Ms. Xiaobei Huang

Exporting Sales Department: Ms. Zhaoxia Su

Tel: 0086-531-87885036

Tel: 0086-531-87746667

Tel: 0086-531-87879384

Fax: 0086-531-87879387

E-mail: [email protected]

Fax: 0086-531-87879387



BS VALVES

Flange Dimensions

Flange Dimensions

Dimensions of PN10 flanges (BS EN 1092-2:1997)

Dimensions of PN10 flanges (BS EN 1092-2:1997) (mm) Mating dimensions DN （mm）

Outside diameter Diameter of bolt Diameter of bolt of flange circle hole

(mm)

Flange thickness Bolts Number

Mating dimensions DN

C

（mm）

Outside diameter Diameter of bolt Diameter of bolt of flange circle hole D K L

Flange thickness Bolts

C

Number n

N om ina l s iz e

G re y I ro n

D uc ti le Ir on

M al lea bl e I ro n

14

4

M12

14

14

14

65

14

4

M12

14

14

14

105

75

14

4

M12

16

16

16

25

115

85

14

4

M12

16

16

16

18

32

140

100

19

4

M16

18

18

18

19

18

40

150

110

19

4

M16

18

19

18

20

19

20

50

165

125

19

4

M16

20

19

20

M16

20

19

20

65

185

145

19

4

M16

20

19

20

8

M16

22

19

20

80

200

160

19

8

M16

22

19

20

19

8

M16

24

19

22

100

220

180

19

8

M16

24

19

22

210

19

8

M16

26

19

22

125

250

210

19

8

M16

26

19

22

285

240

23

8

M20

26

19

24

150

285

240

23

8

M20

26

19

24

200

340

295

23

8

M20

26

20

24

200

340

295

23

12

M20

30

20

24

250

395

350

23

12

M20

28

22

26

250

405

355

28

12

M24

32

22

26

300

445

400

23

12

M20

28

24.5

26

300

460

410

28

12

M24

32

24.5

28

350

505

460

23

16

M20

30

24.5

-

350

520

470

28

16

M24

36

26.5

-

400

565

515

28

16

M24

32

24.5

-

400

580

525

31

16

M27

38

28

-

450

615

565

28

20

M24

32

25.5

-

450

640

585

31

20

M27

40

30

-

500

670

620

28

20

M24

34

26.5

-

500

715

650

34

20

M30

42

31.5

-

600

780

725

31

20

M27

36

30

-

600

840

770

37

20

M33

48

36

-

700

895

840

31

24

M27

40

32.5

-

700

910

840

37

24

M33

54

39.5

-

800

1015

950

34

24

M30

44

35

-

800

1025

950

41

24

M36

58

43

-

900

1125

1050

41

28

M36

62

46.5

-

1000

1255

1170

44

28

M39

66

50

-

1200

1485

1390

50

32

M45

-

57

-

1400

1685

1590

50

36

M45

-

60

-

1600

1930

1820

57

40

M52

-

65

-

1800

2130

2020

57

44

M52

-

70

-

2000

2345

2230

62

48

M56

-

75

-

D

K

L

N om in al si ze

G re y I ro n

D uc ti e l Ir on

M al le ab le Ir on

10

90

60

14

4

M12

14

14

14

10

90

60

15

95

65

14

4

M12

14

14

14

15

95

20

105

75

14

4

M12

16

16

16

20

25

115

85

14

4

M12

16

16

16

32

140

100

19

4

M16

18

18

40

150

110

19

4

M16

18

50

165

125

19

4

M16

65

185

145

19

4

80

200

160

19

100

220

180

125

250

150

n

900

1115

1050

34

28

M30

46

37.5

-

1000

1230

1160

37

28

M33

50

40

-

1200

1455

1380

41

32

M36

56

45

-

1400

1675

1590

44

36

M39

62

46

-

1600

1915

1820

50

40

M45

68

49

-

1800

2115

2020

50

44

M45

70

52

-

2000

2325

2230

50

48

M45

74

55

-

BS VALVES

Note:

MECH VAN CATALOGUE.pdf

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