ansi b 16.11

Socket Weld and Threaded Fittings

Section 7 Socket Weld and Threaded Fittings This Section contains dimension and tolerance information extracted from American and British specifications applicable to socket weld and threaded fittings. Subsections and topics

7-2

Pressure/Temperature Ratings - BS 3799

7-4

Socket Weld Fittings - ANSI/ASME B16.11/BS 3799

7-6

Threaded Fittings - ANSI/ASME B16.11/BS 3799

7-11

Plugs and Bushings - ANSI B16.11/BS 3799

7-13

Hexagonal and Round Nipples - BS 3799

7-14

Welding Bosses - BS 3799

7-15

Threaded Unions - BS 3799

7-16

Swage Nipples - BS 3799

7-18

Outlets

7-19 to 7-25

Low Pressure Threaded Fittings - General

7-26

Equal Elbows, Tees and Crosses - BS 1740

7-27

Sockets - BS 1740

7-31

Caps and Plugs - BS 1740

7-33

Hexagonal Bushes and Nipples - BS 1740

7-34

ASME/ANSI and BS Specifications covered in this Section

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Page

High Pressure Fittings - General

Page

ANSI/ASME B16.11-1991 - Forged Fittings, Socket-welding and Threaded

7-2

BS 3799:1974 - Steel Pipe Fittings, Screwed and Socket-welding for the Petroleum Industry

7-2

BS 1740:Part 1:1971 Wrought Steel Pipe Fittings (screwed BSP thread)

7-26

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E-mail: [email protected]

7-1


High Pressure Fittings - General This subsection summarises requirements for high pressure (HP) socket weld and threaded fittings as defined in ASME/ANSI B16.11-1991 and BS 3799:1974. Dimensions are reproduced in pages 7-6 to 7-25, including coverage of Outlet fittings that are also used in high pressure applications.

Specifications The specifications applicable to high pressure socket weld and threaded fittings are as follows:

❍ ❍

ASME/ANSI B16.11-1991 - Forged fittings, socket-welding and threaded. BS 3799:1974 - Steel pipe fittings, screwed and socket-welding for the petroleum industry. This specification is substantially the same as B16.11.

A summary of the fittings, sizes and pressure ratings (class designations) covered by B16.11 and BS 3799 is provided in the tables below. The first table also shows the pipe weights defined as compatible with the various classes of fitting.

Class designations in B16.11-1991 and BS 3799:1974 Pipe defined as normally used with the fittings2 B16.11-1991 BS 3799:1974 Socket Weld Threaded Socket Weld Threaded Schedule 80/XS Schedule 80/XS Schedule 160 Schedule 80 Schedule 803

Class Designation1 (lb) 2000 30003 6000 9000

Schedule 160 XXS

Schedule 1604 -

XXS -

XXS -

Notes 1 Class designations correspond to the maximum cold working pressure of fittings in pounds force per square inch. 2 The wall thicknesses quoted are not restrictive but do correlate for calculation of pressure ratings. Thicker or thinner pipe may be used, but when thinner pipe is used its strength should govern the pressure rating. 3 Bore dimensions for Class 3000 lb socket welding fittings correspond to Schedule 40 pipe. 4 Bore dimensions for Class 6000 lb socket welding fittings correspond to Schedule 160 pipe.

6000 lb

9000 lb

2000 lb

3000 lb

6000 lb

3000 lb

6000 lb

3000 lb

6000 lb

Elbows, 90° and 45° Crosses Tees Couplings and half couplings Caps

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔

✔ ✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

✔ ✔ ✔ ✔ ✔

Square, hexagonal and round plugs1 Hexagonal head bushings

BS 3799:1974 Socket Weld Threaded

3000 lb

Summary of coverage provided by B16.11-1991 and BS 3799:1974 B16.11-1991 Socket Weld Threaded Types of fittings

1

Flush bushings1 Hexagonal and round nipples Unions Welding bosses Swage nipples2

✔

✔

✔

✔ ✔ ✔ ✔

✔ ✔

✔ ✔ ✔ ✔

✔ ✔ ✔

Notes 1 Plugs and bushes are not designated by Class and may be used for ratings up to Class 6000 lb. 2 Swage nipples may be ordered in any combination of end preparation.

7-2

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High Pressure Fittings - General Dimensions and Tolerances ❍ ❍

Dimensions. See pages 7-6 to 7-25 for HP fitting dimensions. Size Designations for Reducing Fittings. 2 1

❍

3 3

1

1x2x3 where 1 is the largest nominal size

Fitting bore and socket bore tolerances

2 4

1x2x3x4 where 1 and 3 are the larger nominal sizes

Tolerances specified in ASME/ANSI B16.11 are included in the dimension tables. BS 3799 tolerances are substantially the same. Additional tolerances are as follows:

NPS

Tolerance

Concentricity of bores

All

±0.8 mm

Alignment of axes

All

0.06 in per 1 ft, or 1 in 200

Manufacture ❍

❍

ASME/ANSI B16.11-1991. ASME/ANSI stainless steel socket weld or threaded fittings are most commonly manufactured from material conforming to ASTM A182 (see page 4-6). BS 3799:1974. Manufacturing requirements are substantially the same as for B16.11. Stainless steel grades specified are as indicated in the pressure/temperature ratings table on page 7-4.

❍

❍

Marking should include (in priority order): - Manufacturers name or trademark - Material identification (in accordance with A 182, - Class or pressure ratings (e.g. 3000 lb) - Size Markings may be omitted (least priority first from above list) if fitting size or shape imposes limits. Outlets. Socket weld and threaded outlets comply with B16.11 requirements, although B16.11 does not specifically cover outlets.

Pressure Ratings ❍ ❍

General. The Class designation (e.g. 3000 lb) of the high pressure fittings indicates the maximum cold working pressure. ASME/ANSI B16.11 Fittings. ASME/ANSI B16.11 specifies the allowable pressure/ temperature rating to be that of seamless pipe of the equivalent material and wall thickness.

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❍ ❍

BS 3799 Fittings. BS 3799 includes a table of pressure/temperature rating. This is reproduced on page 7-4. Outlets. These fittings conform to the pressure requirements of ASME/ANSI B16.11.


7-3

7-4

WP304H

6000 lb

6000 lb

3000 lb

3000 lb

3000 lb

3000 lb

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207 206 203 200 198 196 194 192 188 183 174 165 155 147 141 135 129 123 117 111 105

3000 lb

207 207 207 206 203 200 198 196 194 192 188 183 174 165 155 147 141 135 129 123 117 111 105

207 206 203 200 198 196 194 192 188 183 174 165 155 147 141 135 129 123 117 111 105

147 147 414 147 411 147 406 147 401 147 396 142 392 137 388 126 384 115 377 110 366 106 349 102 331 98.5 311 95 294 92 282 89 270 86 258 83.5 246 81 234 223 211 -

207 207 207 206 203 200 198 196 194 192 188 183 174 165 155 147 141 135 129 123 117 111 105


Pressure Rating, max, Bar 414 207 414 414 207 414 414 207 414 207 414 411 206 411 206 411 406 203 406 203 406 401 200 401 200 401 396 198 396 198 396 392 196 392 196 392 388 194 388 194 388 384 192 384 192 384 377 188 377 188 377 366 183 366 183 366 349 174 349 174 349 331 165 331 165 331 311 155 311 155 311 294 147 294 147 294 282 141 282 141 282 270 135 270 135 270 258 129 258 129 258 246 123 246 123 246 234 117 234 117 234 223 111 223 111 223 211 105 211 105 211

Fax: 01932 250101

207 207 207 206 203 200 198 196 194 192 188 183 174 165 155 147 141 135 129 123 117 111 105

3000 lb

147 147 147 147 146 142 133 123 114 105 99.5 94 90 87.5 85 82.5 80.5 78.5 76.5 -

6000 lb

354 354 354 177 345 345 172 345 330 165 330 311 155 311 297 148 297 284 142 284 272 136 272 260 130 260 250 125 250 240 120 240 231 115 231 224 112 224 217 108 217 210 105 210 203 101 203 196 98 196 190 95 190 184 92 184 179 89.5 179 176 88 176 174 87 174

3000 lb

177 177 177 172 165 155 148 142 136 130 125 120 116 112 108 105 101 98 95 92 89.5 88 87

6000 lb

207 207 207 206 203 200 198 196 194 192 188 183 174 165 155 146 140 133 127 120 113 107 98

207 207 207 206 203 200 198 196 194 192 188 183 174 165 155 146 140 133 127 120 113 107 100

414 414 414 411 406 401 396 392 388 384 377 366 349 331 311 293 280 267 254 240 227 214 201

WP304L

6000 lb

3000 lb

414 414 414 411 406 401 396 392 388 384 377 366 349 331 311 293 280 267 254 240 227 214 196

WP321 6000 lb

6000 lb

414 414 414 411 406 401 396 392 388 384 377 366 349 331 311 294 282 270 258 246 234 223 211

WP321H 6000 lb

3000 lb 295 295 295 295 295 294 284 274 252 230 220 212 204 197 190 184 178 172 167 162 -

Stainless Steel Grades and Classes (lb) WP347 WP347H WP316 WP316H 6000 lb

3000 lb

414 411 406 401 396 392 388 384 377 366 349 331 311 294 282 270 258 246 234 223 211

WP316L 6000 lb

3000 lb

414 414 414 411 406 401 396 392 388 384 377 366 349 331 311 294 282 270 258 246 234 223 211

WP317 6000 lb

3000 lb

295 295 295 294 292 285 266 247 229 211 199 188 180 175 170 165 161 157 153 -

WP310

WP309 6000 lb

3000 lb

°C -100/-50 -50/-30 -30/+40 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425 450 475 500 525

Temp

6000 lb

WP304

Pressure/temperature ratings from BS 3799:1974

This subsection covers the pressure ratings for high pressure stainless steel socket weld and threaded fittings covered in BS 3799. See page 7-3 for ANSI/ASME B16.11 pressure rating requirements.



3000 lb

3000 lb

3000 lb 99.5 94 88 71 48.7 33.8 23.3 16.6 12.8 10.2 8.2

99.5 94 88 71 48.7 33.8 23.3 16.6 12.8 10.2 8.2

Pressure Rating, max, Bar 199 99.5 199 99.5 199 188 94 188 94 188 176 88 176 89 178 142 71 142 79 158 97.4 48.7 97.4 66.5 133 67.6 33.8 67.6 53 106 46.6 23.3 46.6 41.3 82.7 33.2 16.6 33.2 29.8 59.6 25.7 12.8 25.7 22 44.1 20.5 10.2 20.5 17 34 16.4 8.2 16.4 12.5 25.1 99.5 94 89 79 66.5 53 41.3 29.8 22 17 12.5

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99.5 94 89 79 66.5 53 41.3 29.8 22 17 12.5


Notes The pressure ratings assume stainless steel forging material manufactured as follows (ASTM A 182 equivalents are approximate): WP304 = BS 1503 304S40 = A 182 F304 WP304L = BS 1503 304S30 = A 182 F304L WP321 = BS 1503 321S40 = A 182 F321 WP316 = BS 1503 316S40 or S41 = A 182 F316 WP316L = BS 1503 316S30 or S31 = A 182 F316L The pressure ratings assume stainless steel pipe manufactured as follows (ASTM A 312 equivalents are approximate): WP304 = BS 3605 304S18 = A 312 TP304 WP304L = BS 3605 304S14 = A 312 TP304L WP321 = BS 3605 321S18 = A 312 TP321 WP316 = BS 3605 316S18 = A 312 TP316 WP316L = BS 3605 316S14 = A 312 TP316L

99.5 94 88 71 48.7 33.8 23.3 16.6 12.8 10.2 8.2

3000 lb

-

3000 lb

85.5 80.5 69.5 55 43.8 32.9 25.2 19.3 15.1 11.7 8.7

3000 lb

85.5 80.5 69.5 55 43.8 32.9 25.2 19.3 15.1 11.7 8.7

6000 lb

85.5 73 60 47.5 37 28.9 23.7 18.9 14.5 11.2 9.3

171 146 120 95 74 57.8 47.5 37.9 29 22.4 18.6

93.5 87.5 80.5 69.5 58.5 47.6 36.3 26 18.3 13.1 9.3

187 175 161 139 117 95.2 72.6 52 36.7 26.2 18.6

6000 lb

3000 lb 199 188 178 158 133 106 82.7 59.6 44.1 34 25.1

WP304H

6000 lb

6000 lb -

WP304L

6000 lb

3000 lb 199 188 178 158 133 106 82.7 59.6 44.1 34 25.1

WP321 6000 lb

6000 lb

199 188 176 142 97.4 67.6 46.6 33.2 25.7 20.5 16.4

WP321H 6000 lb

3000 lb

199 188 176 142 97.4 67.6 46.6 33.2 25.7 20.5 16.4

Stainless Steel Grades and Classes (lb) WP347 WP347H WP316 WP316H 6000 lb

3000 lb

-

WP316L 6000 lb

3000 lb

171 161 139 110 87.7 65.8 50.5 38.7 30.2 23.5 17.5

WP317 6000 lb

3000 lb

171 161 139 110 87.7 65.8 50.5 38.7 30.2 23.5 17.5

WP310

WP309 6000 lb

3000 lb

°C 550 575 600 625 650 675 700 725 750 775 800

Temp

6000 lb

WP304

Pressure/temperature ratings from BS 3799:1974 (Continued)



7-5


3000 lb Socket Weld Fittings ANSI B16.11/BS 3799

NPS

max/ave/min

Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) Centre to Bottom of Socket 90° Elbows, 45° Tees, & Elbows Crosses in 1/8

1/4

3/8

1/2

3/4

1 11/4 11/2 2 21 / 2 3 4

max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min

$

+0.03 0.44 -0.03 +0.03 0.44 -0.03 +0.06 0.53 -0.06 +0.06 0.62 -0.06 +0.06 0.75 -0.06 +0.08 0.88 -0.08 +0.08 1.06 -0.08 +0.08 1.25 -0.08 +0.08 1.50 -0.08 +0.10 1.62 -0.10 +0.10 2.25 -0.10 +0.10 2.62 -0.10

$

mm

in

12 10 12 10 15

+0.03 0.31 -0.03 +0.03 0.31 -0.03 +0.06 0.31 -0.06 +0.06 0.44 -0.06 +0.06 0.50 -0.06 +0.08 0.56 -0.08 +0.08 0.69 -0.08 +0.08 0.81 -0.08 +0.08 1.00 -0.08 +0.10 1.12 -0.10 +0.10 1.25 -0.10 +0.10 1.62 -0.10

12 17 14 21 18 24 20 29 25 34 30 40 36 44 39 60 55 69 64

Socket Bore Diameter

mm

in

9

0.440

%

Bore Diameter of Fittings

mm

in

11.15

0.299

'

mm 7.6

-

-

-

-

-

7 9

0.420 0.575

10.65 14.60

0.239 0.394

6.1 10.0

-

-

-

-

-

7 9

0.555 0.710

14.10 18.05

0.334 0.523

8.5 13.3

-

-

-

-

-

6 13

0.690 0.875

17.55 22.20

0.463 0.652

11.8 16.6

-

-

-

-

-

10 14

0.855 1.085

21.70 27.55

0.592 0.854

15.0 21.7

-

-

-

-

-

11 16

1.065 1.350

27.05 34.30

0.794 1.079

20.2 27.4

-

-

-

-

-

12 19

1.330 1.695

33.80 43.05

1.019 1.410

25.9 35.8

-

-

-

-

-

15 23

1.675 1.935

42.55 49.15

1.350 1.640

34.3 41.7

-

-

-

-

-

19 27

1.915 2.426

48.65 61.60

1.580 2.097

40.1 53.5

-

-

-

-

-

23 31

2.406 2.931

61.10 74.45

2.037 2.529

51.7 64.2

-

-

-

-

-

27 34

2.906 3.560

73.80 90.40

2.409 3.128

61.2 79.5

-

-

-

-

-

29 44

3.535 4.570

89.30 116.05

3.008 4.086

46.4 103.8

-

-

-

-

-

39

4.545

115.45

3.966

100.7

Socket Wall Thickness

in -

&

mm -

Depth of Socket

Body Wall

in -

*

mm -

in -

-

mm -

0.125 0.125

3.20 3.20

0.095 2.40 0.38

10

0.149 0.130

3.80 3.30

0.119

3.00 0.38

10

0.158 0.138

4.00 3.50

0.126 3.20 0.38

10

0.184 0.161

4.65 4.10

0.147 3.75 0.38

10

0.193 0.168

4.90 4.25

0.154 3.90 0.50

13

0.224 0.196

5.70 5.00

0.179 4.55 0.50

13

0.239 0.208

6.05 5.30

0.191 4.85 0.50

13

0.250 0.218

6.35 5.55

0.200 5.10 0.50

13

0.273 0.238

6.95 6.05

0.218 5.55 0.62

16

0.345 0.302

8.75 7.65

0.276 7.00 0.62

16

0.375 0.327

9.50 8.30

0.300 7.60 0.62

16

0.421 0.368

10.70 9.35 0.337 8.55 0.75

19

-

-

-

-

-

-

Notes Average socket wall thickness C around periphery shall not be less than the listed values. Minimum values are permitted in localised areas. Dimensions B and J are the same for Class 3000, 6000 and 9000 lb fittings. Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS 3799:1974. Exceptions are indicated in the following note. BS 3799 does not cover NPS 4.

7-6

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NPS

1

1

3

1

3

/8 /4 /8 /2 /4

1 11/4 11/2 2 21/2 3 4

max/ave/min

Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974)


Socket Bore Diameter in

%


'

mm

in

mm

0.440

11.15

0.299

7.6

-

-

-

-

0.420 0.575

10.65 14.60

0.239 0.394

6.1 10.0

-

-

-

-

0.555 0.710

14.10 18.05

0.334 0.523

8.5 13.3

-

-

-

-

0.690 0.875

17.55 22.20

0.463 0.652

11.8 16.6

-

-

-

-

0.855 1.085

21.70 27.55

0.592 0.854

15.0 21.7

-

-

-

-

1.065 1.350

27.05 34.30

0.794 1.079

20.2 27.4

-

-

-

-

1.330 1.695

33.80 43.05

1.019 1.410

25.9 35.8

-

-

-

-

1.675 1.935

42.55 49.15

1.350 1.640

34.3 41.7

-

-

-

-

1.915 2.426

48.65 61.60

1.580 2.097

40.1 53.5

-

-

-

-

2.406 2.931

61.10 74.45

2.037 2.529

51.7 64.2

-

-

-

-

2.906 3.560

73.80 90.40

2.409 3.128

61.2 79.5

-

-

-

-

3.535 4.570

89.30 116.05

3.008 4.086

46.4 103.8

-

-

-

-

4.545

115.45

3.966

100.7

Socket Wall Thickness in -

&

Couplings

-

(

mm -

in -

0.125 0.125 0.149 0.130 0.158 0.138 0.184 0.161

3.20 3.20 3.80 3.30 4.00 3.50 4.65 4.10

0.38

10

-

-

0.38

10

-

-

0.38

10

-

-

0.38

10

-

-

0.193 0.168

4.90 4.25

-

-

0.50

13

-

-

0.224 0.196

5.70 5.00

-

-

0.50

13

-

-

0.239 0.208 0.250 0.218

6.05 5.30 6.35 5.55

-

-

0.50

13

-

-

0.50

13

-

-

0.62

16

-

-

0.62

16

-

-

0.62

16

-

-

0.75

19

0.273 0.238 0.345 0.302 0.375 0.327 0.421 0.368

6.95 6.05 8.75 7.65 9.50 8.30 10.70 9.35

Laying Lengths Half Couplings

Depth of Socket

)

mm in mm in mm +0.06 8 +0.03 17 0.25 -0.06 +0.06 0.25 -0.06 +0.12 0.25 -0.12 +0.12 0.38 -0.12 +0.12 0.38 -0.12 +0.16 0.50 -0.16 +0.16 0.50 -0.16 +0.16 0.50 -0.16 +0.16 0.75 -0.16 +0.20 0.75 -0.20 +0.20 0.75 -0.20 +0.20 0.75 -0.20

5 8 5 9 3 13 6 13 6 17 9 17 9 17 9 23 15 24 14 24 14 24 14

0.62 -0.03 +0.03 0.62 -0.03 +0.06 0.69 -0.06 +0.06 0.88 -0.06 +0.06 0.94 -0.06 +0.08 1.12 -0.08 +0.08 1.19 -0.08 +0.08 1.25 -0.08 +0.08 1.62 -0.08 +0.10 1.69 -0.10 +0.10 1.75 -0.10 +0.10 1.88 -0.10

15 17 15 19 16 24 21 25 22 31 27 32 28 34 30 43 39 45 40 47 42 50 45

Cap End Wall Thickness in 0.19 0.19 0.19 0.25 0.25 0.38 0.38 0.44 0.50 0.62

.

mm 41 5.0 71 5.0 71 5.0 81 6.5 101 6.5 111 9.5 131 9.5 141 11.0 181 12.5 211 16.0

-

-

0.75

241 19.0

-

-

0.88

22.0

Notes Average socket wall thickness C around periphery shall not be less than the listed values. Minimum values are permitted in localised areas. Dimensions B, J, E and F are the same for Class 3000, 6000 and 9000 lb fittings. Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS 3799:1974. Exceptions are indicated in the following notes. BS 3799 does not cover NPS 4. 1 These values for K are BS 3799 minimum values, quoted because they differ from the ASME/ANSI B16.11 values.

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Fax: 01932 250101


7-7



NPS

max/ave/min

Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) Centre to Bottom of Socket 90° Elbows, 45° Tees, & Elbows Crosses in 1/8

1/4

3/8

1/2

3/4

1 11/4 11/2 2 21 / 2 3

max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min max ave min

$

+0.03 0.44 -0.03 +0.03 0.53 -0.03 +0.06 0.62 -0.06 +0.06 0.75 -0.06 +0.06 0.88 -0.06 +0.08 1.06 -0.08 +0.08 1.25 -0.08 +0.08 1.50 -0.08 +0.08 1.62 -0.08 -

mm 12 10 17 13 17 14 21 18 24 21 29 25 34 30 40 36 43 39 +2.5 571 -2.5 +2.5 641 -2.5

in

$

mm

Socket Bore Diameter

in

+0.03 9 0.440 0.31 -0.03 7 0.420 +0.03 9 0.575 0.31 -0.03 7 0.555 +0.06 13 0.710 0.44 -0.06 10 0.690 +0.06 14 0.875 0.50 -0.06 11 0.855 +0.06 16 1.085 0.56 -0.06 13 1.065 +0.08 19 1.350 0.69 -0.08 15 1.330 +0.08 23 1.695 0.81 -0.08 19 1.675 +0.08 27 1.935 1.00 -0.08 23 1.915 +0.08 31 2.426 1.12 -0.08 27 2.406 +2.5 2.931 321 -2.5 2.906 +2.5 3560 411 -2.5 3.535

%


mm

in

11.15

0.189

'

in

4.8

0.156 0.135 0.181 0.158 0.198 0.172

3.95 3.45 4.60 4.00 5.05 4.35

0.235 0.204 0.274 0.238 0.312 0.273 0.312 0.273 0.315 0.307 0.430 0.374

-

-

-

0.126 0.280

3.2 7.1

-

-

-

14.10 18.05

0.220 0.389

5.6 9.9

-

-

-

17.55 22.20

0.329 0.494

8.4 12.5

-

-

-

21.70 27.55

0.434 0.642

11.0 16.3

-

-

-

27.05 34.30 33.80 43.05 42.55 49.15

0.582 0.845 0.785 1.190 1.130 1.368 1.308 1.717 1.657

14.8 21.5 19.9 30.2 28.7 34.7 33.2 43.6 42.1 +0.8 54.01 -0.8 +0.8 67.01 -0.8

73.80 90.40 89.30

-

&

mm

10.65 14.60

48.65 61.60 61.10 74.45


-

-

mm

Depth of Socket

Body Wall

in -

*

mm -

in -

-

mm -

0.124 3.15 0.38

10

0.145 3.70 0.38

10

0.158 4.00 0.38

10

5.95 5.20

0.188 4.80 0.38

-

-

-

10

6.95 6.05 7.90 6.95 7.90 6.95 8.90 7.80 10.90 9.50 +0.4 7.71 -0.0 +0.4 8.31 -0.0

0.219 0.250 0.250 0.281 0.344 0.276 0.300

5.55 6.35 6.35 7.15 8.75 7.00 7.60

0.50 0.50 0.50 0.50 0.62 0.62 0.62

13 13 13 13 16 16 16

-

-

-

-

-

Notes Average socket wall thickness C around periphery shall not be less than the listed values. Minimum values are permitted in localised areas. Dimensions B and J are the same for Class 3000, 6000 and 9000 lb fittings. Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS 3799:1974. Exceptions are indicated in the following notes. BS 3799 does not cover NPS 1/8, 1/4, 3/8 or 4. BS 3799 dimensions and tolerances are shown in italics. 1 BS 3799 covers elbows, tees and crosses at NPS 21/2 and 3 (not covered by ASME/ANSI B16.11).

7-8

Aalco Tel. 01932 250100 Fax: 01932 250101





1/ 8

1/ 4

3/ 8

1/ 2

3/ 4

1 11/4 11/2 2 21/2 3 4

max/ave/min

NPS

Socket Bore Diameter in


0.440 0.420 0.575 0.555 0.710 0.690 0.875 0.855 1.085 1.065 1.350 1.330 1.695 1.675 1.935 1.915 2.426 2.406 2.931 2.906 3560 3.535 4.570 4.545

%


mm

in

11.15 10.65 14.60 14.10 18.05 17.55 22.20 21.70 27.55 27.05 34.30 33.80 43.05 42.55 49.15 48.65 61.60 61.10 74.45 73.80 90.40 89.30 116.05 115.45

0.189 0.126 0.280 0.220 0.389 0.329 0.494 0.434 0.642 0.582 0.845 0.785 1.190 1.130 1.368 1.308 1.717 1.657 -

'


mm

in

4.8 3.2 7.1 5.6 9.9 8.4 12.5 11.0 16.3 14.8 21.5 19.9 30.2 28.7 34.7 33.2 43.6 42.1

0.156 0.135 0.181 0.158 0.198 0.172 0.235 0.204 0.274 0.238 0.312 0.273 0.312 0.273 0.315 0.307 0.430 0.374 -

-

&

Depth of Socket

mm

in

3.95 3.45 4.60 4.00 5.05 4.35 5.95 5.20 6.95 6.05 7.90 6.95 7.90 6.95 8.90 7.80 10.90 9.50 +0.4 10.4 -0.0 +0.4 12.2 -0.0 -

0.38 0.38 0.38 0.38 0.50 0.50 0.50 0.50 0.62 0.62 0.62 0.75

-

Laying Lengths Half Couplings Couplings

(

mm

in

10 10 10 10 13 13 13 13 16 16 16 19

+0.06 0.25 -0.06 +0.06 0.25 -0.06 +0.12 0.25 -0.12 +0.12 0.38 -0.12 +0.12 0.38 -0.12 +0.16 0.50 -0.16 +0.16 0.50 -0.16 +0.16 0.50 -0.16 +0.16 0.75 -0.16 +0.20 0.75 -0.20 +0.20 0.75 -0.20 -

)

mm

in

8 5 8 5 9 3 13 6 13 6 17 9 17 9 17 9 23 15 24 14 24 14 -

+0.03 0.62 -0.03 +0.03 0.62 -0.03 +0.06 0.69 -0.06 +0.06 0.88 -0.06 +0.06 0.94 -0.06 +0.08 1.12 -0.08 +0.08 1.19 -0.08 +0.08 1.25 -0.08 +0.08 1.62 -0.08 +0.10 1.69 -0.10 +0.10 1.75 -0.10 -

Cap End Wall Thickness

mm

in

17 15 17 15 19 16 24 21 25 22 31 27 32 28 34 30 43 39 45 40 47 42 -

0.25 0.25 0.25 0.31 0.31 0.44 0.44 0.50 0.62 0.75 0.88 1.12

.

mm 6.5 6.5 6.5 5.21 8.0 131 8.0 141 11.0 181 11.0 191 12.5 241 16.0 291 19.0 341 22.0 28.5

Notes Average socket wall thickness C around periphery shall not be less than the listed values. Minimum values are permitted in localised areas. (Dimension C is not specified in ASME/ANSI B16.11 for Class 6000 lb Caps larger than NPS 2.) Dimensions B, J, E and F are the same for Class 3000, 6000 and 9000 lb fittings. Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS 3799:1974. Exceptions are indicated in the following notes. BS 3799 does not cover NPS 1/8, 1/4, 3/8 or 4. BS 3799 dimensions and tolerances are shown in italics. 1 These values for K are BS 3799 minimum values, quoted because they differ from the ASME/ANSI B16.11 values.

Aalco Tel. 01932 250100

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7-9

Cross

max ave min max ave min max ave min max ave min max ave min max ave min

$

in +0.06 1.00 -0.06 +0.06 1.12 -0.06 +0.08 1.25 -0.08 +0.08 1.38 -0.08 +0.08 1.50 -0.08 +0.08 2.12 -0.08

mm 27 24 30 27 34 30 37 33 40 36 56 52

$

in mm in +0.06 17 0.875 0.62 -0.06 14 0.855 +0.06 21 1.085 0.75 -0.06 17 1.065 +0.08 23 1.350 0.81 -0.08 19 1.330 +0.08 24 1.695 0.88 -0.08 20 1.675 +0.08 28 1.935 1.00 -0.08 23 1.915 +0.08 31 2.426 1.12 -0.08 26 2.406

%

-

1.473

61.10

1.070 1.533

48.65 61.60 -

-

0.866 1.130

42.55 49.15 -

-

0.569 0.926

33.80 43.05 -

-

0.404 0.629

27.05 34.30 -

-

0.222 0.464

21.70 27.55 -

-

in 0.282

-

mm 22.20

'

37.4

-

27.2 38.9

-

22.0 28.7

-

14.5 23.5

-

10.3 16.0

-

5.6 11.8

-

mm 7.2

in 0.368 0.322 0.385 0.337 0.448 0.392 0.478 0.418 0.500 0.438 0.545 0.477

& mm 9.35 8.20 9.80 8.55 11.40 9.95 12.15 10.60 12.70 11.15 13.85 12.15 -

0.436 11.05

-

0.400 10.15

9.70 -

-

0.382

9.10 -

-

0.358

7.80

-

-

0.308

7.45

-

mm

-

*

0.294

-

in

Body Wall

45° Elbow

0.62

-

0.50

-

0.50

-

0.50

-

0.50

-

0.38

-

in

-

16

-

13

-

13

-

13

-

13

-

10

-

mm

Depth of Socket

Coupling

( in +0.12 0.38 -0.12 +0.12 0.38 -0.12 +0.16 0.50 -0.16 +0.16 0.50 -0.16 +0.16 0.50 -0.16 +0.16 0.75 -0.16

mm 13 6 13 6 17 9 17 9 17 9 23 15

Couplings

Aalco Tel. 01932 250100

Fax: 01932 250101

Cap


) in +0.06 0.88 -0.06 +0.06 0.94 -0.06 +0.08 1.12 -0.08 +0.08 1.19 -0.08 +0.08 1.25 -0.08 +0.08 1.62 -0.08

mm 24 21 25 22 31 27 32 28 34 30 43 39

19.0

0.75

16.0

-

14.0

-

14.0

-

12.5

-

11.0

-

mm

-

.

-

0.62

-

0.56

-

0.56

-

0.50

-

0.44

-

in

Cap End Half Couplings Wall Thickness

Laying Lengths

Half-Coupling

Note BS 3799 does not specify Class 9000 lb socket weld fittings. Otherwise, notes for Class 6000 lb fittings on pages 7-8 and 7-9 also apply to this table.

2

11/2

11/4

1

3/ 4

1/ 2

NPS

Tee

Centre to Bottom of Socket Socket Bore Diameter Socket 90° Elbows, of Fittings Wall Thickness Tees, & 45° Elbows Bore Diameter Crosses

Dimensions and tolerances (based on ASME/ANSI B16.11-1991)

max/ave/min

7-10

90° Elbow

9000 lb Socket Weld Fittings - ANSI B16.11


Tee

3000 lb in mm 0.81 21 0.97 25 1.12 29 1.31 33 1.50 38 1.75 44 2.00 51 2.38 60 2.50 64 3.25 83 3.75 95 4.50 114

6000 lb in mm 0.97 25 1.12 29 1.31 33 1.50 38 1.75 44 2.00 51 2.38 60 2.50 64 3.25 83 3.75 95 4.19 106 4.50 114

2000 lb in mm 0.69 17 0.69 17 0.75 19 0.88 22 1.00 25 1.12 29 1.31 33 1.38 35 1.69 43 2.06 52 2.50 64 3.12 79

3000 lb in mm 0.69 17 0.75 19 0.88 22 1.00 25 1.12 29 1.31 33 1.38 35 1.69 43 1.72 45 2.06 52 2.50 64 3.12 79

6000 lb in mm 0.75 19 0.88 22 1.00 25 1.12 29 1.31 33 1.38 35 1.69 43 1.72 44 2.06 52 2.50 64 3.12 79 3.12 79

&

$

2000 lb in mm 0.81 21 0.81 21 0.97 25 1.12 29 1.31 33 1.50 38 1.75 44 2.00 51 2.38 60 3.00 76 3.38 86 4.19 106

Centre to End 45°

Centre to End 2000 lb in mm 0.88 22 0.88 22 1.00 25 1.31 33 1.50 38 1.81 46 2.19 56 2.44 62 2.97 75 3.62 92 4.31 110 5.75 146

3000 lb in mm 0.88 22 1.00 25 1.31 33 1.50 38 1.81 46 2.19 56 2.44 62 2.97 75 3.31 84 4.00 102 4.75 121 6.00 152

+ 6000 lb in mm 1.00 25 1.31 33 1.50 38 1.81 46 2.19 56 2.44 62 2.97 75 3.31 84 4.00 102 4.75 121 5.75 146 6.00 152

OD of Band, min

Cross

2000 lb in mm 0.125 3.0 0.125 3.0 0.125 3.0 0.125 3.0 0.125 3.0 0.145 3.5 0.153 4.0 0.158 4.0 0.168 4.5 0.221 5.5 0.236 6.0 0.258 6.5

3000 lb in mm 0.125 3.0 0.130 3.5 0.138 3.5 0.161 4.0 0.170 4.5 0.196 5.0 0.208 5.5 0.219 5.5 0.281 7.0 0.301 7.5 0.348 9.0 0.440 11.0

*

6000 lb in mm 0.250 6.5 0.260 6.5 0.275 7.0 0.321 8.0 0.336 8.5 0.391 10.0 0.417 10.5 0.436 11.0 0.476 12.0 0.602 15.5 0.655 16.5 0.735 18.5

Wall Thickness, min

45° Elbow

in 0.25 0.32 0.36 0.43 0.50 0.58 0.67 0.70 0.75 0.93 1.02 1.09

mm 6.5 8.0 9.0 11.0 12.5 14.5 17.0 18.0 19.0 23.5 26.0 27.5

%

Aalco Tel. 01932 250100

Fax: 01932 250101


in 0.2639 0.4018 0.4078 0.5337 0.5457 0.6828 0.7068 0.7235 0.7565 1.138 1.200 1.300

/ mm 6.5 10.0 10.5 13.5 14.0 17.5 18.0 18.5 19.0 29.0 30.5 33.0

Length of Thread, min.

Note Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS 3799:1974. Exceptions are indicated in the following notes. BS 3799 does not cover any Class 2000 lb fittings, and Class 6000 lb fittings with NPS <1/2. BS 3799 dimensions G and L2 vary slightly from the ANSI values quoted. Dimension B is not specified in BS 3799. Dimension B is the length of perfect thread. L2 is the effective length of thread based on ANSI/ASME B1.20.1 (NTP), see page 10-11.

1 11/4 11/2 2 21 / 2 3 4

3/4

1/2

3/8

1/4

1/8

NPS


90° Elbow

2000 lb, 3000 lb and 6000 lb Threaded Fittings - ANSI B16.11/BS 3799


7-11

1.06 1.06 1.31 1.50 1.69 1.81 1.88 2.00 2.50 2.69 2.94

27 27 33 38 43 46 48 51 64 68 75

3000 lb in mm 0.62 16 0.75 19 0.88 22 1.12 29 1.38 35 1.75 44 2.25 57 2.50 64 3.00 76 3.62 92 4.25 108 5.50 140

'

OD 3000 lb in mm 0.19 5.0 0.19 5.0 0.19 5.0 0.25 6.5 0.25 6.5 0.38 9.5 0.38 9.5 0.44 11.0 0.50 12.5 0.62 16.0 0.75 19.0 0.88 22.0

*

0.25 0.25 0.31 0.31 0.44 0.44 0.50 0.62 0.75 0.88 1.12

6.5 6.5 8.0 8.0 11.0 11.0 12.5 16.0 19.0 22.0 28.5

6000 lb in mm

End Wall Thickness

Cap

in 0.25 0.32 0.36 0.43 0.50 0.58 0.67 0.70 0.75 0.93 1.02 1.09

% mm 6.5 8.0 9.0 11.0 12.5 14.5 17.0 18.0 19.0 23.5 26.0 27.5

in 0.2639 0.4018 0.4078 0.5337 0.5457 0.6828 0.7068 0.7235 0.7565 1.138 1.200 1.300

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/

Length of Thread

Note Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS 3799:1974. Exceptions are indicated in the following notes. BS 3799 does not cover Class 6000 lb caps with NPS >2. BS 3799 dimensions G and L2 vary slightly from the ANSI values quoted. Dimension B is not specified in BS 3799. Dimension B is the length of perfect thread. L2 is the effective length of thread based on ANSI/ASME B1.20.1 (NTP), see page 10-11.

1 11/4 11/2 2 21/2 3 4

3/ 4

1/ 2

3/ 8

1/ 4

1/ 8

6000 lb in mm

3

3000 lb in mm 0.75 19 1.00 25 1.00 25 1.25 32 1.44 37 1.62 41 1.75 44 1.75 44 1.88 48 2.38 60 2.56 65 2.69 68

:

3000 lb & 6000 lb in mm 1.25 32 1.38 35 1.50 38 1.88 48 2.00 51 2.38 60 2.62 67 3.12 79 3.38 86 3.62 92 4.25 108 4.75 121

End to End Caps

End to End Couplings 6000 lb in mm 0.88 22 1.00 25 1.25 32 1.50 38 1.75 44 2.25 57 2.50 64 3.00 76 3.62 92 4.25 108 5.00 127 6.25 159

Half Coupling


NPS

7-12 Coupling

3000 lb and 6000 lb Threaded Fittings - ANSI B16.11/BS 3799

mm 6.5 10.0 10.5 13.5 14.0 17.5 18.0 18.5 19.0 29.0 30.5 33.0


Hex Head Plug

Round Head Plug

in 0.38 0.44 0.50 0.56 0.62 0.75 0.81 0.81 0.88 1.06 1.12 1.25

$

mm 9.5 11.0 12.5 14.5 16.0 19.0 20.5 20.5 22.0 27.0 28.5 32.0

in 0.25 0.25 0.31 0.38 0.44 0.50 0.56 0.62 0.69 0.75 0.81 1.00

%

mm 6 6 8 10 11 13 14 16 17 19 21 25

in 0.28 0.38 0.44 0.56 0.62 0.81 0.94 1.12 1.31 1.50 1.69 2.50

& mm 7.0 9.5 11.0 14.5 16.0 20.5 24.0 28.5 33.5 38.0 43.0 63.5

Square Head Plugs Height of Square Width Flats min min in 0.41 0.53 0.69 0.84 1.06 1.31 1.69 1.91 2.38 2.88 3.50 4.50

( mm 10 13 17 21 27 33 43 48 60 73 89 114

in 1.38 1.62 1.62 1.75 1.75 2.00 2.00 2.00 2.50 2.75 2.75 3.00

'

mm 35 41 41 44 44 51 51 51 64 70 70 76

Round Head Plugs Diameter of Head Length nominal min

in 0.44 0.62 0.69 0.88 1.06 1.38 1.75 2.00 2.50 3.00 3.50 4.62

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mm 11.0 16.0 17.5 22.0 27.0 35.0 44.5 51.0 63.5 76.0 89.0 117.5

in

0.12 0.16 0.19 0.22 0.25 0.28 0.31 0.34 0.38 0.41 0.50

3 4 5 6 6 7 8 9 10 10 13

mm

%XVKLQJ*

3OXJ+ in 0.25 0.25 0.31 0.31 0.38 0.38 0.56 0.62 0.69 0.75 0.81 1.00

Hex Height, min mm 6 6 8 8 10 10 14 16 17 19 21 25

Note Hex bushings of one size reduction should not be used where they could be subject to harmful loads and pressures other than internal pressure.

Hex Plugs and Bushings

Flush Bushing


)

Width Flats nominal

Hexagonal Head Bushing

Notes Plugs and bushes are not designated by Class and may be used at ratings up to Class 6000 lb. Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS 3799:1974.

1 11/4 11/2 2 21/2 3 4

3/ 4

1/ 2

3/ 8

1/ 4

1/ 8

NPS

Length min


Square Head Plug

Plugs and Bushings - ANSI B16.11/BS 3799


7-13


Hexagonal and Round Nipples - BS 3799

Hexagonal Nipples

Round Nipples

Hexagonal nipple dimensions (based on BS 3799:1974)

$

Nominal Size Equal in mm 1/ 8 6 1/ 4 8 3/ 8 10 1/ 2 15 3/ 4 20 1 25 40 11/2 2 50 -

Reducing in mm 1/4 x 1/8 8x6 3/8 x 1/4 10 x 8 1/2 x 3/8 15 x 10 1/2 x 1/4 15 x 8 3/4 x 1/2 20 x 15 3/4 x 3/8 20 x 10 25 x 20 1 x 3/4 25 x 15 1 x 1/2 40 x 25 11/2 x 1 11/2 x 3/4 40 x 20 11/2 x 1/2 40 x 15 50 x 40 2 x 11/2 2x1 50 x 25 50 x 20 2 x 3/4 50 x 15 2 x 1/2

min mm 11 15 15 18 18 22 22 22 27 27 27 35 35 35 50 50 50 50 62 62 62 62 62

%

min 3000 lb 6000 lb mm mm 5 2 8 6 5 2 11 8 8 6 14 11 11 8 8 6 19 13 14 11 11 8 24 17 19 13 14 11 38 30 24 17 19 13 14 11 49 39 38 30 24 17 19 13 14 11

&

(

)

:

min

min

min

min

mm 6 6 6 8 8 8 8 8 10 9 9 10 10 10 16 16 16 16 17 17 18 17 18

mm 10 15 15 16 16 20 20 20 21 21 21 25 25 25 26 26 26 26 27 27 27 27 27

mm 10 15 16 15 20 16 21 20 25 21 20 26 25 21 20

mm 26 36 31 40 39 48 44 43 52 50 46 60 56 55 68 67 63 62 71 70 70 65 65

Round nipple dimensions (based on BS 3799:1974) Standard Lengths

Nominal Size in 1/8 1/4 3/8 1/2 3/4 1 11/2 2 21/2 3 4

mm 6 8 10 15 20 25 40 50 65 80 100

mm 50 50 50 -

mm 75 75 75 75 75 75 75 75 -

/

mm 100 100 100 100 100 100 100 100 100 100 -

Wall Thickness mm 150 150 150 150 150 150 150 150 150 150 150

3000 lb

7

6000 lb -

Schedule 80 XXS

Note Other round nipple lengths, L, are available when specified.

7-14

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Welding Bosses - BS 3799

Threaded Fitting

Socket Weld Fitting

Threaded welding boss dimensions (BS 3799:1974) Length of Thread

Length

Bore Diameter

/

$

%

mm 6.70 10.21 10.36 13.56 13.86 17.34 18.38 19.22 28.89 30.48 33.02

mm 38 41 45 51 51 51 51 51 51 57 64

mm 8.4 11.1 14.2 18.0 23.0 29.0 44.0 56.0 67.0 82.0 95.0

Nominal Size in 1 /8 1 /4 3 /8 1 /2 3 /4 1 11/2 2 21 / 2 3 4

mm 6 8 10 15 20 25 40 50 65 80 100

Outside Diameter 3000 lb mm 16 19 22 29 35 45 64 76 95 110 140

'

6000 lb mm 22 26 32 38 45 60 76 95 -

Socket-welding welding boss dimensions (BS 3799:1974) Bore Diameter of Socket min

NPS

% in /8 1 /4 3 /8 1 /2 3 /4 1 11/2 2 21/2 3 1

mm 6 8 10 15 20 25 40 50 65 80

mm 10.7 14.1 17.6 21.8 27.4 34.1 49.0 61.0 73.8 89.7

Aalco Tel. 01932 250100

Socket Wall Thickness min 3000 lb mm 3.2 3.3 3.5 4.1 4.3 5.0 5.6 6.1 7.7 8.3

&

Bore Diameter of Fitting

6000 lb mm 5.2 6.1 7.0 7.8 9.5 10.4 12.2

Fax: 01932 250101

3000 lb mm 6.8 9.2 12.5 15.5 21.0 26.5 40.5 52.0 62.0 78.0

'

6000 lb mm 11.8 15.5 20.7 34.0 43.0 54.0 66.0

Length

Depth of Socket min

)

6

mm 28 32 34 38 38 35 32 29 29 29

mm 10 10 11 13 13 16 19 22 22 22


7-15


Threaded Unions - BS 3799

Threaded union dimensions (BS 3799:1974)

Nominal Size

in 1 /8 1 /4 3 /8 1 /2 3 /4 1 11/4 11/2 2 21/2 3

7-16

mm 6 8 10 15 20 25 32 40 50 65 80

End to End

$

mm 40 43 48 51 57 64 70 79 89 118 121

Width A/F Union Nut min

%

mm 32 32 36 43 50 60 70 78 95 125 140

3000 lb Height of Width A/F of Thickness of Union Nut Ends Shoulder min min min

&

mm 16 18 19 21 24 25 29 30 37 48 51

Aalco Tel. 01932 250100 Fax: 01932 250101

'

mm 17 19 22 30 36 41 50 60 70 85 100

(

mm 3.2 3.2 3.2 4.0 4.8 4.8 5.6 5.6 6.4 9.6 12.7

Length of Thread min

/ mm 6.70 10.21 10.36 13.56 13.86 17.34 17.93 18.38 19.22 28.89 30.48



Socket Weld Unions - BS 3799

Socket weld union dimensions (BS 3799:1974)

Depth of Socket min

NPS

in 1/8 1/4 3/8 1/2 3/4 1 11/4 11/2 2 21 / 2 3

mm 6 8 10 15 20 25 32 40 50 65 80

6

mm 10 10 10 10 13 13 13 13 16 16 16

3000 lb Distance Bore Socket Thickness Bore Width A/F between Diameter Wall of Diameter of Nut Bottom of of Thickness of Union Shoulder min Sockets Sockets min min min min

$

mm 17 17 17 18 20 26 28 30 36 57 70

%

mm 10.7 14.1 17.6 21.8 27.4 34.1 42.9 49.0 61.0 73.8 89.7

&

mm 3.2 3.3 3.5 4.1 4.3 5.0 5.3 5.6 6.1 7.7 8.3

'

mm 6.8 9.2 12.5 15.5 21.0 26.5 35.0 40.5 52.0 62.0 78.0

(

mm 3.2 3.2 3.2 4.0 4.8 4.8 5.6 5.6 6.4 9.6 12.7

)

mm 32 32 36 41 50 60 70 78 95 125 140

Height of Nut min

*

mm 16 18 19 21 24 25 29 30 37 48 51

Note Bore diameter D corresponds to schedule 40 pipe.

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7-17


Swage Nipples - BS 3799

Plain

Threaded

Threaded

Plain

Dimensions of swage nipples (BS 3799:1974) Parallel Length, min Nominal Size

%

&

3000 lb 6000 lb mm mm 1.6 1.6 3.2 -

mm 10 x 8 15 x 10 15 x 8

mm 76 89 89

mm 48 56 56

mm 16 19 19

3/4

x 1/ 2

20 x 15

95

57

22

2.4

2.4

3/4

3/ 8

20 x 10 25 x 20 25 x 15 40 x 25 40 x 20 40 x 15 50 x 40 50 x 25 50 x 20 50 x 15 65 x 50 65 x 40 80 x 65 80 x 50 80 x 40 100 x 80 100 x 65

95 102 102 114 114 114 165 165 165 165 178 178 203 203 203 229 229

57 64 64 70 70 70 108 108 108 108 114 114 133 133 133 140 140

22 22 22 25 25 25 29 29 29 29 32 32 41 41 41 48 48

4.0 2.8 5.2 6.7 9.5 11.9 5.6 12.7 15.5 17.5 4.8 10.3 7.1 11.9 17.5 11.9 19.1

2.0 4.4 6.4 8.3 10.7 5.2 11.5 13.5 15.9 3.2 8.3 6.7 9.9 15.5 10.7 17.5

x 1 x 3/4 1 x 1/2 11/2 x 1 11/2 x 3/4 11/2 x 1/2 2 x 11/2 2x1 2 x 3/4 2 x 1/2 21/2 x 2 21/2 x 11/2 3 x 21 / 2 3x2 3 x 11/2 4x3 4 x 21 / 2

Aalco Tel. 01932 250100 Fax: 01932 250101

Wall Thickness

7(both ends)

(

in /8 x 1/4 1 /2 x 3/8 1 /2 x 1/4 3

7-18

$

Eccentricity

Threaded /Plain

Plain

Threaded

3000 lb

6000 lb

6000 lb

Schedule 160 -

XXS -

Schedule 80 Schedule 160

XXS



Outlets Outlets may be used in place of welded or threaded tees to reduce costs and provide more flexible fabrication (‘run your pipe then weld on fittings’) while maintaining full pipe strength for all sizes, weights and schedules. The following pages contain the dimension tables for socket weld, threaded and buttweld outlets. Note Manufacture’s information is used as the basis for information in this outlets subsection. Manufacturers’ data may vary.

Specifications ❍

❍

Manufacture. Socket weld and threaded outlets are manufactured to the requirements of ASME/ ANSI B16.11 - Forged fitting, socket welding and threaded, although outlet dimensions are not specified in B16.11. Buttweld outlets are manufactured to the requirements of ASME/ANSI B16.9 - Factory-made wrought steel buttwelding fittings, although outlet dimensions are not specified in B16.9.

Pressure Rating. Outlets are rated the same as seamless steel pipe, as defined in the American National Standard Codes for Pressure Piping, ANSI B31.1 and B31.3, the ASME Boiler and Pressure Vessel Code. Refer to page 5-28 for a summary of pipe pressure rating calculations.

Designations In order to reduce warehouse inventories, outlets of the same size are designed to be used with the a range of run pipe sizes. This can be done without causing a problem when welding because the resulting maximum gap between welded surfaces (caused by the curvature of the outlet when compared with the pipe) is only 1/32 in (0.8 mm). The table below shows the range of outlets available. For example: outlets with a run size range (e.g. 8 - 3 x 1/2) will fit on any size of run pipes in the range (e.g. 3, 31/2, 4, 5, 6 or 8).

3/4

1/2

3/4

31/4 1

11/2-11/4

1

11/221/2-2 11/4 5-3 21/2-2 8-3 12-6 36-10 36-14 Flat Flat 1 1-3/4 2-11/4 21/2-11/4 Run pipe sizes (NPS) for: 10-3 6-21/2 6000 lb Socket weld 36-8 36-12 Outlets, Flat Flat 6000 lb Threaded Outlets, XXS Buttweld Outlets. -

Aalco Tel. 01932 250100

1 1 11/4 11/2

Outlet Pipe Sizes (NPS) 2 11/4 11/2 21/2 1/4 1 2 1 /2 1 21/2 2 3 11/2 21 / 2 2 3 21 / 2 31/2

2

21/2

3

21 / 2 31/2-3 5-4 10-6 36-12 Flat 11/4-11/2 21/2-2 10-3 36-12 Flat -

31/2-3 5-4 8-6 18-10 36-20 Flat 11/2 21/2-2 31/2-3 8-4 20-10 36-24 Flat -

4-31/2 6-5 12-8 24-14 36-26 Flat 2

Fax: 01932 250101

21 / 2 31/2-3 5-4 8-6 18-10 36-20 Flat -

31 / 2

4

3 3 31 / 2 4

31/2 31/2 4 5

4 4 5 6

5

6

8

>4 Order to specific run pipe size

Run pipe sizes (NPS) for: 3000 lb Socket Weld Outlets, 3000 lb Threaded Outlets, Std & XS Buttweld Outlets,

1/2

4 5 6 8 10 5 6 8 10 14-2 6 8 10 14-12 20-6 10-8 12-10 14-12 20-16 36-4 18-12 18-14 20-16 36-24 Flat 36-20 36-20 36-24 Flat Flat Flat 21 / 2 3 4 5 Order to specific run pipe size 6 10-8 20-12 36-24 Flat


7-19


Socket Weld Outlets

Reducing Size

Full Size

3000 lb socket weld outlet dimensions and weights Reducing sizes Outlet Size

$

&

)

*

mm

mm

mm

mm

25.50 27.00 33.40 33.40 34.80 38.00 46.00 50.70 53.80 57.00

1/2 3/4

1 11/4 11/2 2 21/2 3 31/2 4

24.00 31.80 30.00 36.60 36.50 46.10 44.50 55.60 51.00 62.00 65.00 74.70 76.15 87.40 93.50 104.80 101.50 122.30 120.50 130.20

10.00 13.00 13.00 13.00 13.00 16.00 16.00 16.00 19.00 19.00

Full sizes

Weight kg/ piece 0.140 0.150 0.300 0.400 0.470 0.730 1.250 1.720 1.950 3.300

$

&

'

)

*

mm

mm

mm

mm

mm

25.50 27.00 33.40 33.40 34.80 38.00 46.00 50.70 53.30 55.50

22.40 16.00 31.80 30.00 21.00 36.60 36.50 26.70 46.10 44.50 35.00 55.60 51.00 40.90 62.00 65.00 52.50 74.70 76.15 62.80 87.40 93.50 77.90 104.80 112.75 90.10 117.50 127.00 102.20 130.20

10.00 13.00 13.00 13.00 13.00 16.00 16.00 16.00 19.00 19.00

Weight kg/ piece 0.060 0.110 0.300 0.300 0.400 0.630 1.030 1.700 1.950 3.000

6000 lb socket weld outlet dimensions and weights Outlet Size 1

/2 3 /4 1 11/4 11/2

7-20

Reducing sizes

$

mm 31.50 36.50 39.60 41.00 42.70

&

mm 19.00 25.50 33.40 38.00 49.30

)

mm 40.00 46.00 57.20 65.10 76.30

Aalco Tel. 01932 250100 Fax: 01932 250101

*

mm 10.00 13.00 13.00 13.00 13.00

Weight kg/piece 0.250 0.370 0.600 0.750 0.920



Threaded and Nipple Outlets

Reducing Size

Full Size

3000 lb threaded outlet dimensions and weights Outlet Size 1/2 3/4

1 11/4 11/2 2 21 / 2 3 31 / 2 4

Reducing sizes

$

mm 25.50 27.00 33.40 33.40 34.80 38.00 46.00 50.70 53.80 57.00

&

mm 24.00 30.00 36.50 44.50 51.00 65.00 76.15 93.50 101.50 120.50

)

Full sizes

Weight

mm 31.80 36.60 46.10 55.60 62.00 74.70 87.40 104.80 122.30 130.20

$

kg/piece 0.110 0.160 0.300 0.410 0.450 0.800 1.370 2.000 2.610 3.230

mm 25.50 27.00 33.40 33.40 34.80 38.00 46.00 50.70 53.30 55.50

&

mm 24.00 30.00 36.50 44.50 51.00 65.00 76.15 93.50 112.75 120.50

'

mm 16.00 20.65 27.00 34.90 41.20 52.40 63.50 77.80 90.50 103.20

)

mm 31.80 36.60 46.10 55.60 62.00 74.70 87.40 104.80 117.50 130.20

Weight kg/piece 0.070 0.110 0.200 0.320 0.410 0.650 1.130 1.950 2.050 3.090

6000 lb threaded outlet dimensions and weights Outlet Size 1/2 3/4

1 11/4 11/2 2

Reducing sizes

$

mm 31.50 36.50 39.60 41.00 42.70 52.10

&

Weight

)

mm 19.00 25.50 33.40 38.00 49.30 70.00

mm 40.00 46.00 57.20 65.10 76.30 92.10

kg/piece 0.020 0.350 0.600 0710 0.900 2.300

Plain end nipple outlet dimensions Outlet Size 1

/2 /4 1 11/4 11/2 2 3

Reducing sizes 3000 lb 6000 lb

$

mm 89 89 89 89 89 89

&

mm 24 30 36.5 44.5 51 65

$

mm 89 89 89 89 89 89

&

mm 14.5 19.0 25.5 33.4 38.0 43

Nipple

Aalco Tel. 01932 250100

Fax: 01932 250101


7-21


Buttweld Outlets

Reducing Size

Full Size

Standard buttweld outlet dimensions and weights Reducing sizes Outlet Size 1/ 2 3/ 4

1 11/4 11/2 2 21/2 3 31/2 4 5 6 8 10 12 14 16 18 20 24 26 30 36

7-22

$

mm 19.00 22.20 27.00 31.50 33.40 38.00 41.20 44.50 47.50 51.00 57.00 60.30 69.80 78.00 86.00 89.00 94.00 97.00 102.00 144.00 156.00 175.00 206.00

&

mm 24.00 30.00 36.50 44.50 51.00 65.00 76.15 93.50 112.60 120.50 141.30 170.00 220.50 274.00 324.00 356.00 406.00 459.00 508.00 609.00 660.00 762.00 914.00

Weight kg/piece 0.08 0.11 0.25 0.35 0.45 0.80 1.13 1.82 2.50 2.86 4.65 6.45 10.66 18.00 27.00 30.00 34.00 44.00 54.00 101.00 120.00 190.00 310.00

Full sizes

$

mm 19.00 22.20 27.00 31.50 33.40 38.00 41.20 44.50 47.50 51.00 57.00 60.30 69.80 78.00 86.00 89.00 94.00 103.00 117.00 144.00 156.00 175.00 206.00

Aalco Tel. 01932 250100 Fax: 01932 250101

&

mm 24.00 30.00 36.50 44.50 51.00 65.00 76.15 93.50 112.60 120.50 141.30 170.00 220.50 274.00 324.00 356.00 406.00 473.00 508.00 609.00 660.00 762.00 914.00

'

mm 15.80 21.00 26.60 35.00 40.90 52.50 62.80 78.00 90.20 102.20 128.20 154.00 202.50 254.00 304.50 336.50 387.00 438.00 489.00 590.00 641.00 743.00 895.00

Weight kg/piece 0.07 0.11 0.18 0.32 0.36 0.68 1.02 1.70 2.30 3.10 3.90 6.70 13.00 16.00 27.00 32.00 42.00 57.00 80.00 114.00 138.00 230.00 336.00



Buttweld Outlets

Reducing Size

Full Size

Extra strong (XS) buttweld outlets dimensions and weights Reducing sizes Outlet Size 1

/2 3 /4 1 11/4 11/2 2 21/2 3 31/2 4 5 6 8 10 12 14 16 18 20 24 26 30 36

$

mm 19 22.20 27.00 31.50 33.40 38.00 41.20 44.50 47.50 51.00 57.00 78.00 98.50 94.00 103.00 100.00 106.50 111.00 119.00 152.00 165.00 181.00 212.50

&

mm 24.00 30.00 36.50 44.50 51.00 65.00 76.15 93.50 112.60 120.50 141.30 170.00 220.00 265.00 613.00 351.00 403.00 456.00 510.00 610.00 660.00 762.00 914.00

Full sizes

Weight

$

kg/piece 0.09 0.14 0.21 0.41 0.50 0.80 1.18 1.90 2.55 3.00 4.75 10.50 17.00 21.00 28.00 32.00 46.50 59.00 72.00 142.00 168.00 218.00 404.00

mm 19.00 22.20 25.40 28.50 31.50 38.00 41.20 44.50 47.50 51.00 57.00 78.00 98.50 98.30 100.00 105.50 113.00 119.00 127.00 152.00 165.00 181.00 212.00

&

mm 24.00 30.00 36.50 44.50 51.00 65.00 76.15 93.50 112.60 120.50 141.30 170.00 220.00 256.00 320.00 355.00 419.00 474.00 528.00 610.00 660.00 762.00 914.00

'

mm 13.90 18.90 24.30 32.80 38.10 49.30 59.00 73.70 85.40 97.20 122.30 146.30 194.00 247.50 298.00 330.00 381.00 432.00 482.50 584.20 635.00 738.00 889.00

Weight kg/piece 0.07 0.11 0.18 0.32 0.41 0.75 1.15 1.90 2.30 3.50 4.30 6.80 14.60 21.00 28.00 34.50 52.20 59.00 85.00 146.00 182.00 255.00 446.00

Schedule 160 and double extra strong (XXS) buttweld outlets dimensions and weights Outlet Size 1/ 2 3/ 4

1 11/4 11/2 2 21/2 3 4 5 6

Reducing sizes $ & mm mm 28.50 14.30 31.50 19.00 38.00 25.50 44.50 33.40 50.70 38.00 55.50 42.90 61.80 53.90 73.00 73.00 84.00 98.40 93.50 122.20 104.70 146.00

Aalco Tel. 01932 250100

Weight kg/piece 0.110 0.320 0.380 0.570 0.800 1.00 1.550 2.900 4.770 6.470 12.80

Fax: 01932 250101

$ mm 28.50 31.50 38.00 44.50 50.70 55.50 61.80 73.00 84.00 93.50 104.70

Full sizes & mm 14.30 19.00 25.50 33.40 38.00 42.90 53.90 73.00 98.40 122.20 146.00

' mm 0.110 0.320 0.380 0.570 0.800 1.00 1.550 2.900 4.770 6.470 13.80


7-23


45° Lateral Outlets

Socket Weld

Threaded

Buttweld

3000 lb lateral outlets - for 45° lateral connections dimensions and weights Dimensions Nominal Run Sizes 21/2-11/4, 12-3 21/2-11/4, 12-3 21/2-11/4, 12-3 11/2-11/4, 5-2, 12-6 21/2-2, 5-2, 12-6 21/2-2, 5-3, 12-6 21/2-2, 5-3, 12-6 5-4, 8-6, 12-10

Outlet Size

&

OD of Outlet

(

Socket Weld & Threaded

Weight

Buttweld

in

mm

mm

1/ 4

36.5

39.7

31.8

mm

-

0.23

3/ 8

36.5

39.7

31.8

0.23

1

/2

36.5

39.7

31.8

3/ 4

43.6

47.6

35.7

1

54.0

57.2

45.2

11/4

67.5

61.9

54.6

11/2

76.2

66.7

63.5

1.20

2

104.8

81.0

82.6

3.29

Outside diameter at bevel matches the outlet pipe diameter

kg/piece

0.30 0.34 0.52 0.86

6000 lb lateral outlets - for 45° lateral connections dimensions and weights Dimensions Nominal Elbow Size 21/2-11/4, 12-3 21/2-11/4, 12-3 11/2-11/4, 5-2, 12-6 21/2-2, 5-3, 12-6 21/2-2, 5-3, 12-6 21/2-2, 5-3, 12-6 5-4, 8-6, 12-10

7-24

Outlet Size

&

(

OD of Outlet Socket Weld & Threaded

in

mm

mm

1

/4

36.5

39.7

31.8

mm

3/ 8

36.5

39.7

31.8

Weight

Buttweld

-

kg/piece 0.34 0.34


1/ 2

43.6

47.6

35.7

3

/4

54.0

57.2

45.2

1

67.5

61.9

54.8

11/4

76.2

66.7

63.5

1.32

11/2

104.8

81.0

82.6

2.80

Aalco Tel. 01932 250100 Fax: 01932 250101

0.39 0.57 1.00



Elbow Outlets

Threaded

Socket Weld

Buttweld

3000 lb elbow outlet for 90° long radius elbow, dimensions and weights Dimensions Nominal Elbow Size

Outlet Size

36-11/4 36-11/4 36-11/4 36-11/4 36-2 36-2 36-2 36-3

1/4

in 3/8 1

/2 3 /4 1 11/4 11/2 2

OD of Outlet

&

(

mm 38.1 38.1 38.1 43.6 54.0 73.0 79.4 106.4

mm 38.1 38.1 38.1 45.2 52.4 55.6 58.8 69.9

Weight


Buttweld

mm 31.8 31.8 31.8 35.7 45.2 54.8 63.5 82.6


kg/piece 0.23 0.23 0.30 0.34 0.52 0.86 1.20 2.39

6000 lb elbow outlet for 90° long radius elbow, dimensions and weights Dimensions Nominal Elbow Size

Outlet Size

36-11/4 36-11/4 36-11/4 36-2 36-2 36-2 36-3

1/4

in 3/8 1

/2 3 /4 1 11/4 11/2

Aalco Tel. 01932 250100

&

(

mm 38.1 38.1 43.6 54.0 73.0 79.4 106.4

mm 38.1 38.1 45.2 54.4 55.6 58.8 69.6

Fax: 01932 250101

OD of Outlet

Weight


Buttweld

mm 31.8 31.8 35.7 45.2 54.8 63.5 82.6


kg/piece 0.34 0.34 0.39 0.57 1.00 1.77 2.80


7-25


Low Pressure Threaded Fittings - General This subsection summarises requirements for 150 lb low pressure (LP) threaded fittings as defined in BS 1740 : Part 1 : 1971 (as confirmed October 1983) - Wrought steel pipe fittings (screwed BSP thread). Dimensions and tolerances are reproduced in the following pages. Stainless steel low pressure threaded fittings are in general accordance with these dimensions and tolerances.

Dimensions and Tolerances BS 1740 dimensions are as detailed in the following pages. Length tolerances are as specified below. BS 1740 Tolerances Length of Socket Unions

NPS

±mm 6 6 10 12 16 -

<25 25 to 40 >40 to 65 >65 to 75 >75 to 110 >75 to 150 >150

Length or Centre to Face Tolerances for Other Fittings ±mm 1.5 3.0 4.5 6.0 8.0 10.0

Threading Requirements Fittings manufactured to BS 1740 are threaded in accordance with BS 21:1985, Pipe threads for tubes and fittings where pressure-tight joints are made on the threads (metric dimensions). Summary dimensions are included below. For further information on BS 21 threads see page 10-10.

Internal Parallel Thread (Rp)

External Taper Thread (R)

Internal parallel and external taper thread Nominal Size of Outlet in 1 /8 1 /4 3 /8 1 /2 3 /4 1 11/4 11/2 2 21 / 2 3 4 5 6

7-26

mm 6 8 10 15 20 25 32 40 50 65 80 100 125 150

Minimum Outside Diameter

'

mm 15.0 18.5 22.0 27.0 32.5 39.5 49.0 56.0 68.0 84.0 98.0 124.0 151.0 178.0

Minimum Outside Diameter of Body Behind External Thread

(

mm 9.8 13.3 16.8 21.1 26.6 33.4 42.1 48.0 59.8 75.4 88.1 113.3 138.7 164.1

Aalco Tel. 01932 250100 Fax: 01932 250101

Minimum Inside Diameter of Body Behind Internal Thread

G

mm 8.6 11.4 15.0 18.6 24.1 30.3 39.0 44.8 56.7 72.2 84.9 110.1 135.5 160.9



Equal Elbows, Tees and Crosses - BS 1740

Equal Elbow

Equal Tee

Cross Equal

Equal 45° Elbow

Threaded equal 90°elbow, tee and cross dimensions (BS 1740:Part 1) Centre to Face

Nominal Size of Outlets in 1/8 1/4 3/8 1/2 3/4 1 11/4 11/2 2 21 / 2 3 4 5 6

$

mm 6 8 10 15 20 25 32 40 50 65 80 100 125 150

mm 16 22 25 32 35 43 51 52 64 76 89 115 140 160

Threaded equal 45° equal elbow dimensions (BS 1740:Part 1) Centre to Face

Nominal Size of Outlets in 3/8 1/2 3/4 1 11/4 11/2 2

$

mm 10 15 20 25 32 40 50

Aalco Tel. 01932 250100

mm 19 22 27 33 38 44 51

Fax: 01932 250101


7-27


Elbows - BS 1740

Reducing Elbows

Equal Elbows, Male and Female Note These may also be referred to as Street Elbows

Threaded equal elbows, male and female dimensions (BS 1740:Part 1) Nominal Size of Outlets in /4 3 /8 1 /2 3 /4 1 11/4 11/2 2 21 / 2 3 4 1

mm 8 10 15 20 25 32 40 50 65 80 100

Centre to face, min

$

%

mm 19 21 25 30 37 43 49 59 68 81 100

mm 27 29 35 40 46 54 57 70 83 94 115

Bore of Male End min mm 6.5 8.5 11.5 18.0 24.0 30.0 37.0 48.0 62.0 75.0 97.0

Bore of Male End max mm 8.0 10.5 13.0 21.0 26.0 32.0 39.0 51.0 66.0 79.0 104.0

Threaded reducing elbow dimensions (BS 1740:Part 1) Nominal Size of Outlets (1 x 2) in mm 1/2 x 3/4 15 x 8 1/2 x 3/8 15 x 10 3/4 x 3/8 1 20 x 101 3/4 x 1/2 20 x 15 25 x 15 1 x 1/2 25 x 20 1 x 3/4 11/4 x 1/2 1 32 x 151 32 x 20 11/4 x 3/4 32 x 25 11/4 x 1 40 x 20 11/2 x 3/4 40 x 25 11/2 x 1 40 x 32 11/2 x 11/4 2 x 3/4 1 50 x 201 2x1 50 x 25 50 x 32 2 x 11/4 50 x 40 2 x 11/2

Centre to Face, min

$

mm 25 27 29 32 35 38 38 41 44 41 44 49 44 48 52 56

%

mm 32 32 35 35 43 43 51 51 51 52 52 52 64 64 64 64

Note 1 Non-prefered size. The use of these sizes should be avoided.

7-28

Aalco Tel. 01932 250100 Fax: 01932 250101



Increasing and Reducing Tees - BS 1740

Reducing on the Run and Branch Tee

Increasing on the Branch Tee

Reducing on the Run Only Tee

Threaded tee, increasing on branch, dimensions (BS 1740:Part 1) Centre to Face min

Nominal Size of Outlets (1 x 2) in 3/8 x 1/2 1/2 x 3/4 1/ 2 x 1 3/ 4 x 1 1 x 11/4 1 x 11/2 11/4 x 11/2 11/2 x 2 2 x 21/2 2x3

mm 10 x 15 15 x 20 15 x 25 20 x 25 25 x 32 25 x 40 32 x 40 40 x 50 50 x 65 50 x 80

$

%

mm 32 35 43 43 51 52 52 64 76 89

mm 27 32 35 38 44 44 49 56 67 73

Threaded tee, reducing on branch and/or run, dimensions (BS 1740:Part 1) Nominal Size of Outlets (1 x 2 x 3) in 3/4 x 1/2 x 1/2 3/4 x 1/2 x 3/4 1 x 3/4 x 1/2 1 x 3/4 x 3/4 1 x 3/ 4 x 1 1 1 / 4 x 1 x 3/ 4 11/4 x 1 x 1 11/4 x 1 x 11/4 11/2 x 1 x 1

Aalco Tel. 01932 250100

mm 20 x 15 x 15 20 x 15 x 20 25 x 20 x 15 25 x 20 x 20 25 x 20 x 25 32 x 25 x 20 32 x 25 x 25 32 x 25 x 32 40 x 25 x 25

Fax: 01932 250101

Centre to Face min

$

mm 32 35 35 38 43 41 44 51 44

%

mm 35 35 43 43 43 51 51 51 52


7-29


Reducing Tees - BS 1740

Reducing on the Branch Tee Reducing tee dimensions (BS 1740:Part 1) Nominal Size of Outlets (1 x 2) in mm 3/8 x 1/4 10 x 8 1/2 x 1/4 15 x 8 1/2 x 3/8 15 x 10 3/4 x 1/4 20 x 8 3/4 x 3/8 20 x 10 3/4 x 1/2 20 x 15 1 x 1/4 1 25 x 81 1 3 1 x /8 25 x 101 25 x 15 1 x 1/2 25 x 20 1 x 3/4 32 x 15 11/4 x 1/2 32 x 20 11/4 x 3/4 32 x 25 11/4 x 1 11/2 x 1/2 1 40 x 151 40 x 20 11/2 x 3/4 40 x 25 11/2 x 1 40 x 32 11/2 x 11/4 2 x 1/2 1 50 x 151 2 x 3/4 1 50 x 201 2x1 50 x 25 50 x 32 2 x 11/4 50 x 40 2 x 11/2 65 x 25 21/2 x 1 65 x 40 21/2 x 11/2 65 x 50 21/2 x 2 3x1 80 x 25 80 x 32 3 x 11/4 80 x 40 3 x 11/2 3x2 80 x 50 80 x 65 3 x 21 / 2 100 x 40 4 x 11/2 4x2 100 x 50 4x3 100 x 80 6x3 150 x 80 6x4 150 x 100

Centre to Face, min

$

mm 22 25 27 27 29 32 30 32 35 38 38 41 44 38 41 44 49 41 44 48 52 56 54 60 67 60 64 67 73 79 76 83 95 120 135

%

mm 24 32 32 35 35 35 43 43 43 43 51 51 51 52 52 52 52 64 64 64 64 64 76 76 76 89 89 89 89 89 115 115 115 160 160

Note 1 Non-prefered size. The use of these sizes should be avoided.

7-30

Aalco Tel. 01932 250100 Fax: 01932 250101



Sockets - BS 1740

Standard Socket

Faced Socket for Longscrews

Half Socket

Backnut

Equal socket, half socket, faced socket and backnut dimensions (BS1740:Part 1)

Nominal Size of Outlets in 1/8 1/4 3/8 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6

mm 6 8 10 15 20 25 32 40 50 65 80 100 125 150

Outside Diameter min

Standard Socket Length min

Half Socket Length min

Faced Socket Length min

Backnut Width Across Flats

$

%

&

'

mm 15.0 18.5 22.0 27.0 32.5 39.5 49.0 56.0 68.0 84.0 98.0 124.0 151.0 178.0

mm 19 27 28 37 39 46 51 51 60 69 75 87 96 96

mm 8 11 12 16 19 21 25 25 28 30 35 40 44 44

mm 17 25 25 35 37 43 48 48 57 65 71 84 92 92

mm 17.0 19.0 24.0 30.0 36.0 41.0 50.0 60.0 70.0 90.0 100.0 130.0 160.0 190.0

Backnut Thickness

Minimum mm 6.5 6.5 7.0 8.0 9.0 9.5 11.0 12.0 13.0 17.0 21.0 22.0 24.0 25.0

7

Tolerance mm +1.5 +1.5 +1.5 +1.5 +1.5 +1.5 +1.5 +1.5 +1.5 +3.0 +3.0 +3.0 +3.0 +3.0

Note The backnut is used with the faced socket for long screws.

Aalco Tel. 01932 250100

Fax: 01932 250101


7-31


Sockets - BS 1740 Reducing socket dimensions (BS1740:Part 1) (Continued) Nominal Size of Outlets (1 x 2)

Reducing Socket Reducing socket dimensions (BS1740:Part 1) Nominal Size of Outlets (1 x 2) in 1/4 x 1/8 3/8 x 1/8 3/8 x 1/4 1/2 x 1/8 1/2 x 1/4 1/2 x 3/8 3/4 x 1/4 3/4 x 3/8 3 /4 x 1/2 1 x 1/4 1 x 3/8 1 x 1/2 1 x 3/4 11/4 x 3/8

Centre to Face min

mm 8x6 10 x 6 10 x 8 15 x 6 15 x 8 15 x 10 20 x 8 20 x 10 20 x 15 25 x 8 25 x 10 25 x 15 25 x 20 32 x 10

$

mm 25 30 29 41 40 38 44 43 41 54 52 51 49 60

in 11/4 x 1/2 11/4 x 3/4 11/4 x 1 11/2 x 1/2 11/2 x 3/4 11/2 x 1 11/2 x 11/4 2 x 1/ 2 2 x 3/4 2x1 2 x 11/4 2 x 11/2 21 / 2 x 1 21/2 x 11/4 21/2 x 11/2 21 / 2 x 2 3x1 3 x 11/4 3 x 11/2 3x2 3 x 21/2 4 x 11/2 4x2 4 x 21/2 4x3 5x3 5x4 6x3 6x4

mm 32 x 15 32 x 20 32 x 25 40 x 15 40 x 20 40 x 25 40 x 32 50 x 15 50 x 20 50 x 25 50 x 32 50 x 40 65 x 25 65 x 32 65 x 40 65 x 50 80 x 25 80 x 32 80 x 40 80 x 50 80 x 65 100 x 40 100 x 50 100 x 65 100 x 80 125 x 80 125 x 100 150 x 80 150 x 100

Centre to Face min

$

mm 59 57 56 65 64 62 60 70 68 67 65 64 76 75 73 71 86 84 83 81 79 105 100 100 98 115 115 140 140

Socket unions dimensions (BS 1740:Part 1) Nominal Size of Outlet

Socket Union

7-32

Aalco Tel. 01932 250100 Fax: 01932 250101

in 1/8 1/4 3/8 1/2 3/4 1 11/4 11/2 2

mm 6 8 10 15 20 25 32 40 50

Length min

$

mm 38 44 51 57 67 76 85 100 110



Caps and Plugs - BS 1740 Cap dimensions (BS 1740:Part 1) (Continued) Nominal Size

Flat Cap

in 1 /4 3/8 1/2 3/4 1 11/4 11/2 2 21 / 2 3 4 5 6

mm 8 10 15 20 25 32 40 50 65 80 100 125 150

Size of Square, approx

Internal Diameter, max

Dome Cap

Cap dimensions (BS 1740:Part 1) Nominal Size in 1/8

mm 6

Length min

$

mm 19

Thickness min

7

mm 3.5

Length min

Thickness min

$

7

mm 24 27 37 38 44 51 54 60 67 73 86 98 98

mm 3.5 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.0 7.0 7.0 7.5 8.5

Plugs Plug dimensions (BS 1740:Part 1)

Nominal Size

in 1/ 8 1/ 4 3/ 8 1/ 2 3/ 4 1 11/4 11/2 2 21/2 3 4 5 6

mm 6 8 10 15 20 25 32 40 50 65 80 100 125 150

Length of Thread for Basic Guage Length, min

$

mm 6.5 9.7 10.1 13.2 14.5 16.8 19.1 19.1 23.4 26.7 29.8 35.8 40.1 40.1

Effective Height of Square, min

%

mm 6 6 10 10 12 12 16 16 19 19 22 25 29 32

&

mm 6 9 11 13 14 17 22 27 32 37 37 46 51 60

'

mm 22 31 33 48 62 73 97 120 145

Thickness of Metal, min

Fitting Allowance in BS 21

.

turns 23 / 4 23 / 4 23 / 4 23 / 4 23 / 4 23 / 4 23 / 4 23 / 4 31 / 4 4 4 41 / 2 5 5

mm 4 5 5 5 6 8 10 12 12

Note dimension is to be not less than the fitting allowance in BS 21 (see page 10-10). * This Plugs in sizes 25 to 150 may be solid or hollow. The purchaser should stated which is required on the order.

Aalco Tel. 01932 250100

Fax: 01932 250101


7-33


Hexagonal Bushes and Nipples - BS 1740

Hexagonal Bushes

Hexagonal Nipple

Hexagonal bush dimensions (BS 1740:Part 1)

Nominal Size

in 1/4 3/8 1/2 3/4 1 11/4 11/2 2 21 / 2 3 4 5 6

mm 8 10 15 20 25 32 40 50 65 80 100 125 150

Minimum Length of External Thread for Basic Gauge Length plus Die Clearance, min

Thickness of Hexagon

/

Overall Length min

7

mm 12.5 12.5 17.5 19.0 21.0 24.0 24.0 27.0 32.0 35.0 40.0 45.0 45.0

Width Across Flats of Hexagon

$

mm 6 8 8 10 10 11 13 14 16 19 22 25 25

)

mm 18.5 20.5 25.5 29.0 31.0 35.0 37.0 41.0 48.0 54.0 62.0 70.0 70.0

mm 14.0 17.0 22.0 27.0 36.0 46.0 50.0 60.0 78.0 90.0 115.0 140.0 166.0

Hexagonal nipple dimensions (BS 1740:Part 1)

Nominal size

in 1/8 1/4 3/8 1/2 3/4 1 11/4 11/2 2 21 / 2 3 4 5 6

7-34

mm 6 8 10 15 20 25 32 40 50 65 80 100 125 150

Minimum Length of External Thread for Basic Gauge Length plus Die Clearance, min

/

mm 9.5 12.5 12.5 17.5 19.0 21.0 24.0 24.0 27.0 32.0 35.0 40.0 45.0 45.0

Thickness of Hexagon

Overall Length min

7

mm 6 6 8 8 10 10 11 13 14 16 19 22 25 25

Aalco Tel. 01932 250100 Fax: 01932 250101

$

mm 25 31 33 43 48 52 59 61 68 80 89 102 115 115

Diameter of Bore max

&

mm 5.5 6.5 9.5 12.5 19.0 25.0 32.0 38.0 51.0 64.0 76.0 100.0 125.0 150.0

Width Across Flats of Hexagon

)

mm 12.0 14.0 17.0 22.0 27.0 36.0 46.0 50.0 60.0 78.0 90.0 115.0 140.0 166.0


ansi b 16.11

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