Check Valves

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Reliab eli abilil ity and Innovation Innovation in dir ectional ectional contr contr ol valves R

Hydr dra aul ulii c and Pneumat Pneumatii c

Chec eck k Val alv ves up to 82 828 ba barr , 19 190 l it itrr es per per mi minute nute

Sup upe er ior pe perr for forman manc ce t hr hro oug ugho hout ut the t he ful l ope perr at iona ionall r ange Features: • • • •

Bifold Fluidpower Ltd Greenside Way, Middlet on, Manchester, UK. tel:- +44 +44(0 (0)1 )161 61 345 345 477 4777 7 fax:fax:- +44 +44(0 (0)1 )161 61 345 345 4780 4780 sales@bifol d-f lui dpower.co.uk www.bifold-fluidpower.co.uk

316L stainl 316L stai nless ess steel Ar cti ctic c Ser Service vice opti options ons to -50 - 50oC Low cos costt solut ion NAC NA CE MR MR- 0101-75 75 opti opt i on

Hydraul ic + Pneumatic Chec Check k Valves Valves April 200 2008 8

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Marshalsea Hydraulics Marshalsea House, V Ventur entur e Way, Way, Pri orswood Ind Est, Taunton, UK. tel :- +44(0)1823 331081 fax: - +44(0)1823 323382 info@marshal sea.co.uk sea.co.uk www.marshalsea.co.uk

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Hydraulic Check Valves - Type HCV

Reliabil ity and Innovation in dir ectional contr ol valves

Bifol d Fluidpower in- l ine check valves featur e compact ball check valve cartr idges. Valve seats are PEEK; the ball and spring are st ainless st eel. Valve body material is 316 S11 stainless steel confor ming t o NACE Std MR-01-75. The rugged, two piece body constr uction per mit s the cartr idge to be easil y replaced. The standard cracking pressur e is 3 psi nominal. Working Pressure / Fl ow Rates :Flow Rati ng (lpm) (nominal)

Pressure drop (bar) @flow rating

04

10

5

3/8MP

tba

tba

06

10

5

08

70

4.5

12

190

tba

16

190

tba

Work ing Pressure (bar)

Size 207

414

690

Operat ing Media:-

Working Temperature:Refer t o elastomer opti ons, valve selection chart.

Mineral oil , water gl ycol mixtur es, some chemicals (Consult Bifold Fluidpower).

NOTE:HCV

828

Inlet & outlet connections must be specified as equal sizes hydraulic ser vice check valve 04F 04M 38MPF 38MPM 06F 06M 08F 08M 12F 12M 16F 16M

1/ 4” NPT 1/ 4” NPT

Model Code

female mal e 9/16” autoclave type MP female 9/16” autoclave type MP male female mal e female mal e female mal e female mal e

3/ 8” NPT 3/ 8” NPT 1/ 2” NPT 1/ 2” NPT 3/ 4” NPT 3/ 4” NPT 1” NPT 1” NPT 04F 04M 38MPF 38MPM 06F 06M 08F 08M 12F 12M 16F 16M

1/ 4” NPT 1/ 4” NPT

female male 9/16” autoclave type MP female 9/16” autoclave type MP male female male female male female male female male

3/ 8” NPT 3/ 8” NPT 1/ 2” NPT 1/ 2” NPT 3/ 4” NPT 3/ 4” NPT 1” NPT 1” NPT 03 06 10 12

207 bar 414 bar 690 bar 828 bar 3

04M - 12

-

Bifold Fluidpower Ltd Greenside Way, Middlet on, Manchester, UK. tel:- +44(0)161 345 4777 fax:- +44(0)161 345 4780 sales@bifol d- fl uidpower.co.uk www.bifold-fluidpower.co.uk

(3000 psi) (6000 psi) (10000 psi) (12000 psi)

Outl et Connection

al l sizes 1/ 4” , 3/ 8” , 1/ 2” & 3/ 4” NPT 1/ 4” NPT 3/ 8MP only

3 psi nominal S V SA

HCV - 04F -

Inlet Connection

3 -

Nitrile (std) Viton Low Temp Nitr ile

Working Pressure

Cracking Pressure (-30oC to +130oC) (-20oC to +180oC) (-40oC to +130oC)

S

O-ring Material

Ordering Example Hydraul ic + Pneumatic Check Valves April 2008

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Marshalsea Hydraulics Marshalsea House, Ventur e Way, Pri orswood Ind Est, Taunton, UK. tel :- +44(0)1823 331081 fax: - +44(0)1823 323382 info@mar shalsea.co.uk www.marshalsea.co.uk

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Overall dimension

L

ØD

NOTE:- these dimensions apply to both

pneumatic and hydraulic 3000 psi units

Model

L (mm)

D (mm)

04F/04F 04F/04M 04M/04F 04M/04M 38MPF/38MPF 38MPF/38MPM 08F/08F 08F/08M 08M/08F 08M/08M 12F/12F 12F/12M 12M/12F 12M/12M 16F/16F 16F/16M 16M/16F 16M/16M

43.5 51.5 52.0 60.0 tb a

19.05 19.05 19.05 19.05 tb a

0.07 0.07 0.07 0.07 tb a

65 72 76 83

31.75 31.75 31.75 31.75

0.27 0.28 0.28 0.26

tb a

tb a

tb a

tb a

tb a

tb a

Weight (Kg)

Pneumatic Check Valves - Type PCV • Air, sweet and sour gas

• 0-13 bar standard

• Body:• Fast ener s: • Seal s:-

Refer to elastomer options, valve selection chart.

stainless steel 316L Met r ic A4 18/ 10 316 gr ade st ai nl ess st eel Viton (standard). Al ter native el astomer s available for extreme conditions

Inlet & outlet connections must be specified as equal sizes

NOTE:PCV

Pneumatic service check valve 04F 04M 06F 06M 08F 08M 12F 12M 16F 16M

1/ 4” NPT 1/ 4” NPT 3/ 8” NPT 3/ 8” NPT 1/ 2” NPT 1/ 2” NPT 3/ 4” NPT 3/ 4” NPT 1” NPT 1” NPT 04F 04M 06F 06M 08F 08M 12F 12M 16F 16M

Model Code

female mal e female mal e female mal e female mal e female mal e 1/ 4” NPT 1/ 4” NPT 3/ 8” NPT 3/ 8” NPT 1/ 2” NPT 1/ 2” NPT 3/ 4” NPT 3/ 4” NPT 1” NPT 1” NPT

13

Inlet Connection

female male female male female male female male female male

13 bar (190 psi) 023

04M - 13

-

023 -

Bifold Fluidpower Ltd Greenside Way, Middlet on, Manchester, UK. tel:- +44(0)161 345 4777 fax:- +44(0)161 345 4780 sales@bifol d-f lui dpower.co.uk www.bifold-fluidpower.co.uk

Worki ng Pressure

0.023 bar (1/3 psi) nominal S V SA

PCV - 04F -

Outl et Connection

Nitr ile Viton (std) Low Temp Nitr ile

Cracking Pressure

(-30oC to +130oC) (-20oC to +180oC) (-40oC to +130oC)

V

O-ring Material

Ordering Example Hydraul ic + Pneumatic Check Valves April 2008

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Marshalsea Hydraulics Marshalsea House, Ventur e Way, Pri orswood Ind Est, Taunton, UK. tel :- +44(0)1823 331081 fax: - +44(0)1823 323382 info@marshal sea.co.uk www.marshalsea.co.uk

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Reliabil ity and Innovation in dir ectional contr ol valves 1/4” Pneumatic Check Valve

1/2” Pneumatic Check Valve

Flow 80.00

70.00

60.00

50.00 ) M F C S ( 40.00 w lo F 30.00

20.00

10.00

0.00 0.00

1.00

2.00

3.00

4.00

5.00

6.00

Dp (bar)

Cv 1.40

1.20

1.00

0.80

v C 0.60

0.40

0.20

0.00 0.00

1.00

2.00

3.00

4.00

5.00

6.00

Dp (bar)

For 3/4” & 1” data contact Bifoild Fluidpower Ltd

Pilot Operated Check Valves (hydraulic) - Type SCV & DCV Bifol d Fluidpower pilot operated check valves feature compact car tr idge bal l check valves in a 316S11 stainl ess steel body. The valves are used to hydraulicall y lock actuators unt il pressure is applied, and are available as single or dual pil ot operated types. Check valve cartr idge seats are PEEK wit h the ball and spring stainl ess steel. The valve is r uggedly constr ucted, and affor ds a very low pressure drop. The standard cracking pressure is 5 psi. Flow rat ings are either 68 or 190 lit res per mi nute. Valve cartr idges are easily repl aced with out distur bing hydraulic tubing. Dual pilot operat ed valves have an int ernally piloted piston eliminating exter nal pilot tubing.

Working Pressure :345 bar (5000 psi) 207 bar (3000 psi) Connections 1/ 2 NPT 3/ 4 NPT Recommended Filtration:10 micr on


Operat ing Media:Mineral oil, water glycol mixtur es, some chemicals. Flow Rating Pressure Drop 68 l it res/ mi n (15 igpm) 4.5 bar (65 psi) @fl ow r at ing 190 l it res/ m in (29 igpm) 1.2 bar (17.5 psi) @f low rat ing Working Temperature:Refer t o elastomer options, valve selection chart below

Hydraul ic + Pneumatic Check Valves April 2008

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Reliabil ity and Innovation in dir ectional contr ol valves Overall Dimensions(mm): Type SCV4018 : 122 L x 63.5 W x 38.1 H Type DCV4018 : 172 L x 63.5 W x 38.1 H Type SCV4035 : 166.5 L x 63.5 W x 63.5 H Type DCV4035 : 236 L x 63.5 W x 63.5 H Fixings: Type 4018 Type 4035

Weight: Type SCV4018 Type DCV4018 Type SCV4035 Type DCV4035

: : : :

1.9 k g 3.1 k g 4.6 k g 7.5 k g

: Three M6 clearance holes : Three M8 clearance holes

Valves can be mount ed in any attitude. System s shoul d be flushed clean t o ISO 4406 Class 18/ 15 or bett er. Weights detail ed in thi s catalogue are approximate only

Si ngl e Check Val ve Si ngl e Check Val ve Dual Check Valve

pi lot to open pi lot to cl ose int er nal pil ot to open

Model Code

68 lpm 190 lpm

Flow Rating 207bar 345 bar

(4035 only) (4018 only)

Work ing Pressure

Nitrile (-30oC to +130oC) Viton (-20oC to +180oC) Fluorosil icone (-50oC to +40oC)

Seal Material

Example Code Standard Test Fluid: Marston Bentley HW540.

107.0

DCV4018/05/S

83.0 58.5 10.0

63.5

44.0

Schematic V1

V2 3 fixing holes o 6.6 through

C1

46.5

38.1

C2 24.5 140.5 165.0

7.5 Bifold Fluidpower Ltd Greenside Way, Middlet on, Manchester, UK. tel:- +44(0)161 345 4777 fax:- +44(0)161 345 4780 sales@bifol d-f lui dpower.co.uk www.bifold-fluidpower.co.uk


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SCV4035/03/S 48.0 V

PL

37.0 166.5 C 49.0

37.0 57.5

Connections:C = Cylinder V = Valve PL = Pilot

19.5

3/ 4” NPT 3/ 4” NPT 1/ 4” NPT

18.0

63.5 square

Excess Flow Check Valves (hydraulic) - Type EFCV

Bifold Fluidpower’s Excess Flow Check Valves provide an effective shut-off in a system pressure supply line when the flow rate exceeds a pre- deter mi ned flow sett ing. Typically the valves are instal led where actuator control l ines and associated valves are vulner able to damage to prevent the total l oss of the hydraulic system control fl uid in the event of a l ine fr acture or high component leakage. These part icul ar valves are designed to shut- off at very low flow rates, and are very restr icti ve in a reverse flow conditi on. The valves should be installed either upstream of the system directional control valve or wi th a free flow r eturn check valve in parall el if they are installed in the actuator control li ne, to ensure adequate actuator operating t imes. Therefore the direction of flow should always be P1 to P2. The shut- off f low r ate is i nternally adjustable, and can be accurately set. Valve types 2002 and 2005 are in-line mounting; types 2012 and 2015 are panel mounting and incorporate an integral by-pass valve operable at the panel fr ont. Valves can also be supplied with i nternal orifi ces all owing a continuous by-pass bleed for automatic resetting after shut-off during system start-up conditions.

Working Pressure :-

Operat ing Media:-

690 bar 414 bar

Mineral oil , water glycol mi xtures, some chemicals.

(10000psi ) m ax h ydr aul ic ser vi ce (6000psi ) m ax gas ser vi ce

Working Temperature:-

Connections:-

Recommended Filtration:-

Refer to el astomer options

1/4 NPT

10 mi crons (NAS 1638 Class 9 system cl eanli ness)

Shut- off Flow Ranges:0.4 to 2.0 litr es per m inute 2.0 to 5.0 litr es per m inute

Overall Dimension:wi thout by- pass val ve with by- pass valve

77.5 x 38 x 38 mm 77.5 x 38 x 91 mm


Panel Mounti ng Hole:-

Weight:-

by pass valve type only 21.0 mm diameter

1.0 Kg


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Excess Fow Check Valve

Model Code

Hydraul ic Service Gas Service

Media

without by-pass valve with by-pass valve Shut Off Flow Ranges

0.4 - 2 lpm 2.0 - 5.0 lpm no reset ori fice 0.010” orif ice 0.015” orif ice 0.020” orif ice 0.025” orif ice 0.030” orif ice 414 bar 690 bar

Orifice

gas ser vice hydr aul ic ser vice

Work ing Pressure

Nitri le (-30oC to +130oC) Viton (-20oC to +180oC)

O-r ing Material

Exampl e Code Standard Test Fluid: Marston Bentley HW540.

58.5

o25.0

Connections P1 = Inlet Port 1/4” NPT P2 = Service Port 1/4” NPT

1.2” A/F locking nut for panel mount ring (o21.0mm panel hole) P2

P1 91.0

38.1

55.8 50.8

19.05

Bifold Fluidpower Ltd Greenside Way, Middlet on, Manchester, UK. tel:- +44(0)161 345 4777 fax:- +44(0)161 345 4780 sales@bifol d-f lui dpower.co.uk www.bifold-fluidpower.co.uk


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Check Valves

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