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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7-1
Socket Weld and Threaded Fittings
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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Socket Weld and Threaded Fittings
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.
E-mail:
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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
E-mail:
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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.
Pressure/Temperature Ratings - BS 3799
Socket Weld and Threaded Fittings
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
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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)
Pressure/Temperature Ratings - BS 3799
Socket Weld and Threaded Fittings
7-5
Socket Weld and Threaded Fittings
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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Socket Weld and Threaded Fittings
3000 lb Socket Weld Fittings ANSI B16.11/BS 3799
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)
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
Socket Bore Diameter in
%
Bore Diameter of Fittings
'
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
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7-7
Socket Weld and Threaded Fittings
6000 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
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
%
Bore Diameter of Fittings
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
Socket Wall Thickness
-
-
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
E-mail:
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Socket Weld and Threaded Fittings
6000 lb Socket Weld Fittings ANSI B16.11/BS 3799
Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974)
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
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
0.440 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
%
Bore Diameter of Fittings
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 -
'
Socket Wall Thickness
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
Fax: 01932 250101
E-mail:
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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
E-mail:
[email protected]
) 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
Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
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 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
E-mail:
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7-19
Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
7-21
Socket Weld and Threaded Fittings
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
E-mail:
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Socket Weld and Threaded Fittings
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
E-mail:
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7-23
Socket Weld and Threaded Fittings
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
Outside diameter at bevel matches the outlet pipe diameter
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
E-mail:
[email protected]
Socket Weld and Threaded Fittings
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
Socket Weld & Threaded
Buttweld
mm 31.8 31.8 31.8 35.7 45.2 54.8 63.5 82.6
Outside diameter at bevel matches the outlet pipe diameter
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
Socket Weld & Threaded
Buttweld
mm 31.8 31.8 35.7 45.2 54.8 63.5 82.6
Outside diameter at bevel matches the outlet pipe diameter
kg/piece 0.34 0.34 0.39 0.57 1.00 1.77 2.80
E-mail:
[email protected]
7-25
Socket Weld and Threaded Fittings
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 -
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
E-mail:
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Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
7-27
Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
7-29
Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
7-31
Socket Weld and Threaded Fittings
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
E-mail:
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Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
7-33
Socket Weld and Threaded Fittings
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
E-mail:
[email protected]
