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 Page High Pressure Fittings - General 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 ANSI/ASME B16.11-1991 - Forged Fittings, Socket-welding and Threaded BS 3799:1974 - Steel Pipe Fittings, Screwed and Socket-welding for the Petroleum Industry BS 1740:Part 1:1971 Wrought Steel Pipe Fittings (screwed BSP thread) Page 7-2 7-2 7-26 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 Class Designation 1 (lb) Pipe defined as normally used with the fittings 2 B16.11-1991 BS 3799:1974 Socket Weld Threaded Socket Weld Threaded 2000 - Schedule 80/XS - - 3000 3 Schedule 80/XS Schedule 160 Schedule 80 3 Schedule 80 6000 Schedule 160 XXS Schedule 160 4 XXS 9000 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 socket welding fittings correspond to Schedule 40 pipe. 4 Bore dimensions for Class socket welding fittings correspond to Schedule 160 pipe. Summary of coverage provided by B16.11-1991 and BS 3799:1974 B16.11-1991 BS 3799:1974 Socket Weld Threaded Socket Weld Threaded Types of fittings Notes 1 Plugs and bushes are not designated by Class and may be used for ratings up to Class. 2 Swage nipples may be ordered in any combination of end preparation. 9000 lb Elbows, 90 and 45 Crosses Tees Couplings and half couplings Caps Square, hexagonal and round plugs 1 Hexagonal head bushings 1 Flush bushings 1 Hexagonal and round nipples Unions Welding bosses Swage nipples 2 2000 lb 7-2
High Pressure Fittings - General Dimensions and Tolerances Dimensions. See pages 7-6 to 7-25 for HP fitting dimensions. Size Designations for Reducing Fittings. 1 2 3 1 x 2 x 3 where 1 is the largest noal size 1 3 2 4 1 x 2 x 3 x 4 where 1 and 3 are the larger noal 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: Fitting bore and socket bore tolerances NPS Tolerance All ±0.8 mm Concentricity of bores 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 conforg 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. ) - 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. ) 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. 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 Pressure/Temperature Ratings - BS 3799 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 from BS 3799:1974 Temp Stainless Steel Grades and Classes (lb) WP304 WP304H WP304L WP321 WP321H WP347 WP347H WP316 WP316H WP316L WP317 WP309 WP310 C Pressure Rating, max, Bar -100/-50 177 354 - - 147 295 207 414 - - 207 414 - - 207 414 - - 147 295 207 414 207 414 207 414-50/-30 177 354 - - 147 295 207 414 - - 207 414 - - 207 414 - - 147 295 207 414 207 414 207 414-30/+40 177 354 177 345 147 295 207 414 207 414 207 414 207 414 207 414 207 414 147 295 207 414 207 414 207 414 50 172 345 172 345 147 294 206 411 206 411 206 411 206 411 206 411 206 411 147 295 206 411 206 411 206 411 75 165 330 165 330 146 292 203 406 203 406 203 406 203 406 203 406 203 406 147 295 203 406 203 406 203 406 100 155 311 155 311 142 285 200 401 200 401 200 401 200 401 200 401 200 401 147 294 200 401 200 401 200 401 125 148 297 148 297 133 266 198 396 198 396 198 396 198 396 198 396 198 396 142 284 198 396 198 396 198 396 150 142 284 142 284 123 247 196 392 196 392 196 392 196 392 196 392 196 392 137 274 196 392 196 392 196 392 175 136 272 136 272 114 229 194 388 194 388 194 388 194 388 194 388 194 388 126 252 194 388 194 388 194 388 200 130 260 130 260 105 211 192 384 192 384 192 384 192 384 192 384 192 384 115 230 192 384 192 384 192 384 225 125 250 125 250 99.5 199 188 377 188 377 188 377 188 377 188 377 188 377 110 220 188 377 188 377 188 377 250 120 240 120 240 94 188 183 366 183 366 183 366 183 366 183 366 183 366 106 212 183 366 183 366 183 366 275 116 231 115 231 90 180 174 349 174 349 174 349 174 349 174 349 174 349 102 204 174 349 174 349 174 349 300 112 224 112 224 87.5 175 165 331 165 331 165 331 165 331 165 331 165 331 98.5 197 165 331 165 331 165 331 325 108 217 108 217 85 170 155 311 155 311 155 311 155 311 155 311 155 311 95 190 155 311 155 311 155 311 350 105 210 105 210 82.5 165 147 294 147 294 147 294 147 294 147 294 147 294 92 184 147 294 146 293 146 293 375 101 203 101 203 80.5 161 141 282 141 282 141 282 141 282 141 282 141 282 89 178 141 282 140 280 140 280 400 98 196 98 196 78.5 157 135 270 135 270 135 270 135 270 135 270 135 270 86 172 135 270 133 267 133 267 425 95 190 95 190 76.5 153 129 258 129 258 129 258 129 258 129 258 129 258 83.5 167 129 258 127 254 127 254 450 92 184 92 184 - - 123 246 123 246 123 246 123 246 123 246 123 246 81 162 123 246 120 240 120 240 475 89.5 179 89.5 179 - - 117 234 117 234 117 234 117 234 117 234 117 234 - - 117 234 113 227 113 227 500 88 176 88 176 - - 111 223 111 223 111 223 111 223 111 223 111 223 - - 111 223 107 214 107 214 525 87 174 87 174 - - 105 211 105 211 105 211 105 211 105 211 105 211 - - 105 211 98 196 100 201 Socket Weld and Threaded Fittings
Pressure/Temperature Ratings - BS 3799 Pressure/temperature ratings from BS 3799:1974 (Continued) 7-5 Temp Stainless Steel Grades and Classes (lb) WP304 WP304H WP304L WP321 WP321H WP347 WP347H WP316 WP316H WP316L WP317 WP309 WP310 C Pressure Rating, max, Bar 550 85.5 171 85.5 171 - - 99.5 199 99.5 199 99.5 199 99.5 199 99.5 199 99.5 199 - - 99.5 199 85.5 171 93.5 187 575 80.5 161 80.5 161 - - 94 188 94 188 94 188 94 188 94 188 94 188 - - 94 188 73 146 87.5 175 600 69.5 139 69.5 139 - - 88 176 88 176 88 176 88 176 89 178 89 178 - - 89 178 60 120 80.5 161 625 55 110 55 110 - - 71 142 71 142 71 142 71 142 79 158 79 158 - - 79 158 47.5 95 69.5 139 650 43.8 87.7 43.8 87.7 - - 48.7 97.4 48.7 97.4 48.7 97.4 48.7 97.4 66.5 133 66.5 133 - - 66.5 133 37 74 58.5 117 675 32.9 65.8 32.9 65.8 - - 33.8 67.6 33.8 67.6 33.8 67.6 33.8 67.6 53 106 53 106 - - 53 106 28.9 57.8 47.6 95.2 700 25.2 50.5 25.2 50.5 - - 23.3 46.6 23.3 46.6 23.3 46.6 23.3 46.6 41.3 82.7 41.3 82.7 - - 41.3 82.7 23.7 47.5 36.3 72.6 725 19.3 38.7 19.3 38.7 - - 16.6 33.2 16.6 33.2 16.6 33.2 16.6 33.2 29.8 59.6 29.8 59.6 - - 29.8 59.6 18.9 37.9 26 52 750 15.1 30.2 15.1 30.2 - - 12.8 25.7 12.8 25.7 12.8 25.7 12.8 25.7 22 44.1 22 44.1 - - 22 44.1 14.5 29 18.3 36.7 775 11.7 23.5 11.7 23.5 - - 10.2 20.5 10.2 20.5 10.2 20.5 10.2 20.5 17 34 17 34 - - 17 34 11.2 22.4 13.1 26.2 800 8.7 17.5 8.7 17.5 - - 8.2 16.4 8.2 16.4 8.2 16.4 8.2 16.4 12.5 25.1 12.5 25.1 - - 12.5 25.1 9.3 18.6 9.3 18.6 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 Socket Weld and Threaded Fittings
Socket Weld Fittings - ANSI B16.11/BS 3799 Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) Centre to Bottom of Socket Socket Bore Diameter Socket Bore of Fittings Wall Diameter Thickness NPS max/ave/ 90 Elbows, Tees, & Crosses 45 Elbows in mm in mm in mm in mm in mm in mm in mm max +0.03 12 +0.03 9 0.440 11.15 0.299 7.6 - - - - - - 1 /8 ave 0.44-0.31 - - - - - 0.125 3.20 - - - - -0.03 10-0.03 7 0.420 10.65 0.239 6.1 0.125 3.20 0.095 2.40 0.38 10 max +0.03 12 +0.03 9 0.575 14.60 0.394 10.0 - - - - - - 1 /4 ave 0.44-0.31 - - - - - 0.149 3.80 - - - - -0.03 10-0.03 7 0.555 14.10 0.334 8.5 0.130 3.30 0.119 3.00 0.38 10 max +0.06 15 +0.06 9 0.710 18.05 0.523 13.3 - - - - - - 3 /8 ave 0.53 0.31 - - - - - 0.158 4.00 - - - - -0.06 12-0.06 6 0.690 17.55 0.463 11.8 0.138 3.50 0.126 3.20 0.38 10 max +0.06 17 +0.06 13 0.875 22.20 0.652 16.6 - - - - - - 1 /2 ave 0.62 0.44 - - - - - 0.184 4.65 - - - - -0.06 14-0.06 10 0.855 21.70 0.592 15.0 0.161 4.10 0.147 3.75 0.38 10 max +0.06 21 +0.06 14 1.085 27.55 0.854 21.7 - - - - - - 3 /4 ave 0.75-0.50 - - - - - 0.193 4.90 - - - - -0.06 18-0.06 11 1.065 27.05 0.794 20.2 0.168 4.25 0.154 3.90 0.50 13 max +0.08 24 +0.08 16 1.350 34.30 1.079 27.4 - - - - - - 1 ave 0.88-0.56 - - - - - 0.224 5.70 - - - - -0.08 20-0.08 12 1.330 33.80 1.019 25.9 0.196 5.00 0.179 4.55 0.50 13 max +0.08 29 +0.08 19 1.695 43.05 1.410 35.8 - - - - - - 1 1 /4 ave 1.06-0.69 - - - - - 0.239 6.05 - - - - -0.08 25-0.08 15 1.675 42.55 1.350 34.3 0.208 5.30 0.191 4.85 0.50 13 max +0.08 34 +0.08 23 1.935 49.15 1.640 41.7 - - - - - - 1 1 /2 ave 1.25-0.81 - - - - - 0.250 6.35-0.08 30-0.08 19 1.915 48.65 1.580 40.1 0.218 5.55 0.200 5.10 0.50 13 max +0.08 40 +0.08 27 2.426 61.60 2.097 53.5 - - - - - - 2 ave 1.50-1.00 - - - - - 0.273 6.95 - - - - -0.08 36-0.08 23 2.406 61.10 2.037 51.7 0.238 6.05 0.218 5.55 0.62 16 max +0.10 44 +0.10 31 2.931 74.45 2.529 64.2 - - - - - - 2 1 /2 ave 1.62-1.12 - - - - - 0.345 8.75 - - - - -0.10 39-0.10 27 2.906 73.80 2.409 61.2 0.302 7.65 0.276 7.00 0.62 16 max +0.10 60 +0.10 34 3.560 90.40 3.128 79.5 - - - - - - 3 ave 2.25-1.25 - - - - - 0.375 9.50 - - - - -0.10 55-0.10 29 3.535 89.30 3.008 46.4 0.327 8.30 0.300 7.60 0.62 16 max +0.10 69 +0.10 44 4.570 116.05 4.086 103.8 - - - - - - 4 ave 2.62-1.62 - - - - - 0.421 10.70 - - - - -0.10 64-0.10 39 4.545 115.45 3.966 100.7 0.368 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. Body Wall Depth of Socket A A B D C G J 7-6
Socket Weld Fittings - ANSI B16.11/BS 3799 Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) Socket Bore Diameter Socket Depth Laying Lengths Bore of Fittings Wall of Half NPS Diameter Thickness Socket Couplings Couplings max/ave/ Cap End Wall Thickness B D C J E F K in mm in mm in mm in mm in mm in mm in mm max 0.440 11.15 0.299 7.6 - - - - +0.06 8 +0.03 17 - - 1 /8 ave - - - - 0.125 3.20 - - 0.25-0.62 - - 4 1 0.420 10.65 0.239 6.1 0.125 3.20 0.38 10-0.06 5-0.03 15 0.19 5.0 max 0.575 14.60 0.394 10.0 - - - - +0.06 8 +0.03 17 - - 1 /4 ave - - - - 0.149 3.80 - - 0.25-0.62 - - 7 1 0.555 14.10 0.334 8.5 0.130 3.30 0.38 10-0.06 5-0.03 15 0.19 5.0 max 0.710 18.05 0.523 13.3 - - - - +0.12 9 +0.06 19 - - 3 /8 ave - - - - 0.158 4.00 - - 0.25-0.69 - - 7 1 0.690 17.55 0.463 11.8 0.138 3.50 0.38 10-0.12 3-0.06 16 0.19 5.0 max 0.875 22.20 0.652 16.6 - - - - +0.12 13 +0.06 24 - - 1 /2 ave - - - - 0.184 4.65 - - 0.38-0.88 - - 8 1 0.855 21.70 0.592 15.0 0.161 4.10 0.38 10-0.12 6-0.06 21 0.25 6.5 max 1.085 27.55 0.854 21.7 - - - - +0.12 13 +0.06 25 - - 3 /4 ave - - - - 0.193 4.90 - - 0.38-0.94 - - 10 1 1.065 27.05 0.794 20.2 0.168 4.25 0.50 13-0.12 6-0.06 22 0.25 6.5 max 1.350 34.30 1.079 27.4 - - - - +0.16 17 +0.08 31 - - 1 ave - - - - 0.224 5.70 - - 0.50-1.12 - - 11 1 1.330 33.80 1.019 25.9 0.196 5.00 0.50 13-0.16 9-0.08 27 0.38 9.5 max 1.695 43.05 1.410 35.8 - - - - +0.16 17 +0.08 32 - - 1 1 /4 ave - - - - 0.239 6.05 - - 0.50-1.19 - - 13 1 1.675 42.55 1.350 34.3 0.208 5.30 0.50 13-0.16 9-0.08 28 0.38 9.5 max 1.935 49.15 1.640 41.7 - - - - +0.16 17 +0.08 34 - - 1 1 /2 ave - - - - 0.250 6.35 - - 0.50-1.25 - - 14 1 1.915 48.65 1.580 40.1 0.218 5.55 0.50 13-0.16 9-0.08 30 0.44 11.0 max 2.426 61.60 2.097 53.5 - - +0.16 23 +0.08 43 - - 2 ave - - - - 0.273 6.95 - - 0.75-1.62 - - 18 1 2.406 61.10 2.037 51.7 0.238 6.05 0.62 16-0.16 15-0.08 39 0.50 12.5 max 2.931 74.45 2.529 64.2 - - +0.20 24 +0.10 45 - - 2 1 /2 ave - - - - 0.345 8.75 - - 0.75-1.69 - - 21 1 2.906 73.80 2.409 61.2 0.302 7.65 0.62 16-0.20 14-0.10 40 0.62 16.0 max 3.560 90.40 3.128 79.5 - - - - +0.20 24 +0.10 47 - - 3 ave - - - - 0.375 9.50 - - 0.75-1.75 - - 24 1 3.535 89.30 3.008 46.4 0.327 8.30 0.62 16-0.20 14-0.10 42 0.75 19.0 max 4.570 116.05 4.086 103.8 - - - - +0.20 24 +0.10 50 - - 4 ave - - - - 0.421 10.70 - - 0.75-1.88 - - - 4.545 115.45 3.966 100.7 0.368 9.35 0.75 19-0.20 14-0.10 45 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 imum values, quoted because they differ from the ASME/ANSI B16.11 values. 7-7
Socket Weld Fittings - ANSI B16.11/BS 3799 Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) Centre to Bottom of Socket Socket Socket Bore Diameter Bore of Fittings Wall Diameter Thickness NPS max/ave/ 90 Elbows, Tees, & Crosses 45 Elbows in mm in mm in mm in mm in mm in mm in mm max +0.03 12 +0.03 9 0.440 11.15 0.189 4.8 - - - - - - 1 /8 ave 0.44-0.31 - - - - - 0.156 3.95 - - - - -0.03 10-0.03 7 0.420 10.65 0.126 3.2 0.135 3.45 0.124 3.15 0.38 10 max +0.03 17 +0.03 9 0.575 14.60 0.280 7.1 - - - - - - 1 /4 ave 0.53-0.31 - - - - - 0.181 4.60 - - - - -0.03 13-0.03 7 0.555 14.10 0.220 5.6 0.158 4.00 0.145 3.70 0.38 10 max +0.06 17 +0.06 13 0.710 18.05 0.389 9.9 - - - - - - 3 /8 ave 0.62-0.44 - - - - - 0.198 5.05 - - - - -0.06 14-0.06 10 0.690 17.55 0.329 8.4 0.172 4.35 0.158 4.00 0.38 10 max +0.06 21 +0.06 14 0.875 22.20 0.494 12.5 - - - - - - 1 /2 ave 0.75-0.50 - - - - - 0.235 5.95 - - - - -0.06 18-0.06 11 0.855 21.70 0.434 11.0 0.204 5.20 0.188 4.80 0.38 10 max +0.06 24 +0.06 16 1.085 27.55 0.642 16.3 - - - - - - 3 /4 ave 0.88-0.56 - - - - - 0.274 6.95 - - - - -0.06 21-0.06 13 1.065 27.05 0.582 14.8 0.238 6.05 0.219 5.55 0.50 13 max +0.08 29 +0.08 19 1.350 34.30 0.845 21.5 - - - - - - 1 ave 1.06-0.69 - - - - - 0.312 7.90 - - - - -0.08 25-0.08 15 1.330 33.80 0.785 19.9 0.273 6.95 0.250 6.35 0.50 13 max +0.08 34 +0.08 23 1.695 43.05 1.190 30.2 - - - - - - 1 1 /4 ave 1.25-0.81 - - - - - 0.312 7.90 - - - - -0.08 30-0.08 19 1.675 42.55 1.130 28.7 0.273 6.95 0.250 6.35 0.50 13 max +0.08 40 +0.08 27 1.935 49.15 1.368 34.7 - - - - - - 1 1 /2 ave 1.50-1.00 - - - 0.315 8.90 - - - - -0.08 36-0.08 23 1.915 48.65 1.308 33.2 0.307 7.80 0.281 7.15 0.50 13 max +0.08 43 +0.08 31 2.426 61.60 1.717 43.6 - - - - - - 2 ave 1.62-1.12 - - - - - 0.430 10.90 - - - - -0.08 39-0.08 27 2.406 61.10 1.657 42.1 0.374 9.50 0.344 8.75 0.62 16 max - +2.5 - +2.5 2.931 74.45 - +0.8 - +0.4 - - - - 2 1 /2 ave - 57 1-32 1-54.0 1-7.7 1 - - - - - -2.5 - -2.5 2.906 73.80 - -0.8-0.0 0.276 7.00 0.62 16 max - +2.5 - +2.5 3560 90.40 - +0.8 +0.4 - - - - 3 ave - 64 1-41 1-67.0 1-8.3 1 - - - - - -2.5 - -2.5 3.535 89.30 - -0.8 - -0.0 0.300 7.60 0.62 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 2 1 /2 and 3 (not covered by ASME/ANSI B16.11). Body Wall Depth of Socket A A B D C G J 7-8
Socket Weld Fittings - ANSI B16.11/BS 3799 Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) Socket Socket Depth Laying Lengths Bore Bore Diameter Wall of of Fittings Half NPS Diameter Thickness Socket Couplings Couplings max/ave/ Cap End Wall Thickness B D C J E F K in mm in mm in mm in mm in mm in mm in mm max 0.440 11.15 0.189 4.8 - - - - +0.06 8 +0.03 17 - - 1 /8 ave - - - - 0.156 3.95 - - 0.25-0.62 - - - 0.420 10.65 0.126 3.2 0.135 3.45 0.38 10-0.06 5-0.03 15 0.25 6.5 max 0.575 14.60 0.280 7.1 - - - - +0.06 8 +0.03 17 - - 1 /4 ave - - - - 0.181 4.60 - - 0.25-0.62 - - - 0.555 14.10 0.220 5.6 0.158 4.00 0.38 10-0.06 5-0.03 15 0.25 6.5 max 0.710 18.05 0.389 9.9 - - - - +0.12 9 +0.06 19 - - 3 /8 ave - - - - 0.198 5.05 - - 0.25-0.69 - - - 0.690 17.55 0.329 8.4 0.172 4.35 0.38 10-0.12 3-0.06 16 0.25 6.5 max 0.875 22.20 0.494 12.5 - - - - +0.12 13 +0.06 24 - - 1 /2 ave - - - - 0.235 5.95 - - 0.38-0.88 - - 5.2 1 0.855 21.70 0.434 11.0 0.204 5.20 0.38 10-0.12 6-0.06 21 0.31 8.0 max 1.085 27.55 0.642 16.3 - - - - +0.12 13 +0.06 25 - - 3 /4 ave - - - - 0.274 6.95 - - 0.38-0.94 - - 13 1 1.065 27.05 0.582 14.8 0.238 6.05 0.50 13-0.12 6-0.06 22 0.31 8.0 max 1.350 34.30 0.845 21.5 - - - - +0.16 17 +0.08 31 - - 1 ave - - - - 0.312 7.90 - - 0.50-1.12 - - 14 1 1.330 33.80 0.785 19.9 0.273 6.95 0.50 13-0.16 9-0.08 27 0.44 11.0 max 1.695 43.05 1.190 30.2 - - - - +0.16 17 +0.08 32 - - 1 1 /4 ave - - - - 0.312 7.90 - - 0.50-1.19 - - 18 1 1.675 42.55 1.130 28.7 0.273 6.95 0.50 13-0.16 9-0.08 28 0.44 11.0 max 1.935 49.15 1.368 34.7 - - - - +0.16 17 +0.08 34 - - 1 1 /2 ave - - - - 0.315 8.90 - - 0.50-1.25 - - 19 1 1.915 48.65 1.308 33.2 0.307 7.80 0.50 13-0.16 9-0.08 30 0.50 12.5 max 2.426 61.60 1.717 43.6 - - - - +0.16 23 +0.08 43 - - 2 ave - - - - 0.430 10.90 - - 0.75-1.62 - - 24 1 2.406 61.10 1.657 42.1 0.374 9.50 0.62 16-0.16 15-0.08 39 0.62 16.0 max 2.931 74.45 - - - +0.4 - - +0.20 24 +0.10 45 - - 2 1 /2 ave - - - - - 10.4 - - 0.75-1.69 - - 29 1 2.906 73.80 - - - -0.0 0.62 16-0.20 14-0.10 40 0.75 19.0 max 3560 90.40 - - - +0.4 - - +0.20 24 +0.10 47 - - 3 ave - - - - - 12.2 - - 0.75-1.75 - - 34 1 3.535 89.30 - - - -0.0 0.62 16-0.20 14-0.10 42 0.88 22.0 max 4.570 116.05 - - - - - - - - - - - - 4 ave - - - - - - - - - - - - - - 4.545 115.45 - - - - 0.75 19 - - - - 1.12 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 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 imum values, quoted because they differ from the ASME/ANSI B16.11 values. 7-9
7-10 9000 lb Socket Weld Fittings - ANSI B16.11 Dimensions and tolerances (based on ASME/ANSI B16.11-1991) NPS 1 /2 3 /4 1 1 1 /4 1 1 /2 2 max/ave/ 90 Elbow Cross Tee 45 Elbow Coupling Half-Coupling Cap Centre to Bottom of Socket Laying Lengths 90 Elbows, Socket Bore Diameter Socket Body Wall Depth of Socket Tees, & 45 Elbows Bore Diameter of Fittings Wall Thickness Couplings Half Couplings Crosses Note - BS 3799 does not specify Class 9000 lb socket weld fittings. Otherwise, notes for Class fittings on pages 7-8 and 7-9 also apply to this table. Cap End Wall Thickness A A B D C G J E F K in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm max +0.06 27 +0.06 17 0.875 22.20 0.282 7.2 - - - - - - +0.12 13 +0.06 24 - - ave 1.00-0.62 - - - - - 0.368 9.35 - - - - 0.38-0.88 - - - -0.06 24-0.06 14 0.855 21.70 0.222 5.6 0.322 8.20 0.294 7.45 0.38 10-0.12 6-0.06 21 0.44 11.0 max +0.06 30 +0.06 21 1.085 27.55 0.464 11.8 - - - - - - +0.12 13 +0.06 25 - - ave 1.12-0.75 - - - - - 0.385 9.80 - - - - 0.38-0.94 - - - -0.06 27-0.06 17 1.065 27.05 0.404 10.3 0.337 8.55 0.308 7.80 0.50 13-0.12 6-0.06 22 0.50 12.5 max +0.08 34 +0.08 23 1.350 34.30 0.629 16.0 - - - - - - +0.16 17 +0.08 31 - - ave 1.25-0.81 - - - - - 0.448 11.40 - - - - 0.50-1.12 - - - -0.08 30-0.08 19 1.330 33.80 0.569 14.5 0.392 9.95 0.358 9.10 0.50 13-0.16 9-0.08 27 0.56 14.0 max +0.08 37 +0.08 24 1.695 43.05 0.926 23.5 - - - - - - +0.16 17 +0.08 32 - - ave 1.38-0.88 - - - - - 0.478 12.15 - - - - 0.50-1.19 - - - -0.08 33-0.08 20 1.675 42.55 0.866 22.0 0.418 10.60 0.382 9.70 0.50 13-0.16 9-0.08 28 0.56 14.0 max +0.08 40 +0.08 28 1.935 49.15 1.130 28.7 - - - - - - +0.16 17 +0.08 34 - - ave 1.50-1.00 - - - - - 0.500 12.70 - - - - 0.50-1.25 - - - -0.08 36-0.08 23 1.915 48.65 1.070 27.2 0.438 11.15 0.400 10.15 0.50 13-0.16 9-0.08 30 0.62 16.0 max +0.08 56 +0.08 31 2.426 61.60 1.533 38.9 - - - - - - +0.16 23 +0.08 43 - - ave 2.12-1.12 - - - - - 0.545 13.85 - - - - 0.75-1.62 - - - -0.08 52-0.08 26 2.406 61.10 1.473 37.4 0.477 12.15 0.436 11.05 0.62 16-0.16 15-0.08 39 0.75 19.0 Socket Weld and Threaded Fittings
2000 lb, and Threaded Fittings - ANSI B16.11/BS 3799 90 Elbow Tee Cross 45 Elbow 7-11 Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) Centre to End Centre to End 45 OD of Band, Wall Thickness, Length of Thread,. NPS A C H G 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 fittings with NPS < 1 /2. - BS 3799 dimensions G and L 2 vary slightly from the ANSI values quoted. Dimension B is not specified in BS 3799. - Dimension B is the length of perfect thread. L 2 is the effective length of thread based on ANSI/ASME B1.20.1 (NTP), see page 10-11. B L 2 2000 lb 2000 lb 2000 lb 2000 lb in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm 1 /8 0.81 21 0.81 21 0.97 25 0.69 17 0.69 17 0.75 19 0.88 22 0.88 22 1.00 25 0.125 3.0 0.125 3.0 0.250 6.5 0.25 6.5 0.2639 6.5 1 /4 0.81 21 0.97 25 1.12 29 0.69 17 0.75 19 0.88 22 0.88 22 1.00 25 1.31 33 0.125 3.0 0.130 3.5 0.260 6.5 0.32 8.0 0.4018 10.0 3 /8 0.97 25 1.12 29 1.31 33 0.75 19 0.88 22 1.00 25 1.00 25 1.31 33 1.50 38 0.125 3.0 0.138 3.5 0.275 7.0 0.36 9.0 0.4078 10.5 1 /2 1.12 29 1.31 33 1.50 38 0.88 22 1.00 25 1.12 29 1.31 33 1.50 38 1.81 46 0.125 3.0 0.161 4.0 0.321 8.0 0.43 11.0 0.5337 13.5 3 /4 1.31 33 1.50 38 1.75 44 1.00 25 1.12 29 1.31 33 1.50 38 1.81 46 2.19 56 0.125 3.0 0.170 4.5 0.336 8.5 0.50 12.5 0.5457 14.0 1 1.50 38 1.75 44 2.00 51 1.12 29 1.31 33 1.38 35 1.81 46 2.19 56 2.44 62 0.145 3.5 0.196 5.0 0.391 10.0 0.58 14.5 0.6828 17.5 1 1 /4 1.75 44 2.00 51 2.38 60 1.31 33 1.38 35 1.69 43 2.19 56 2.44 62 2.97 75 0.153 4.0 0.208 5.5 0.417 10.5 0.67 17.0 0.7068 18.0 1 1 /2 2.00 51 2.38 60 2.50 64 1.38 35 1.69 43 1.72 44 2.44 62 2.97 75 3.31 84 0.158 4.0 0.219 5.5 0.436 11.0 0.70 18.0 0.7235 18.5 2 2.38 60 2.50 64 3.25 83 1.69 43 1.72 45 2.06 52 2.97 75 3.31 84 4.00 102 0.168 4.5 0.281 7.0 0.476 12.0 0.75 19.0 0.7565 19.0 2 1 /2 3.00 76 3.25 83 3.75 95 2.06 52 2.06 52 2.50 64 3.62 92 4.00 102 4.75 121 0.221 5.5 0.301 7.5 0.602 15.5 0.93 23.5 1.138 29.0 3 3.38 86 3.75 95 4.19 106 2.50 64 2.50 64 3.12 79 4.31 110 4.75 121 5.75 146 0.236 6.0 0.348 9.0 0.655 16.5 1.02 26.0 1.200 30.5 4 4.19 106 4.50 114 4.50 114 3.12 79 3.12 79 3.12 79 5.75 146 6.00 152 6.00 152 0.258 6.5 0.440 11.0 0.735 18.5 1.09 27.5 1.300 33.0 Socket Weld and Threaded Fittings
7-12 and Threaded Fittings - ANSI B16.11/BS 3799 Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) End to End Couplings End to End Caps OD End Wall Thickness Length of Thread NPS Coupling Half Coupling Cap W P D G B L 2 & in mm in mm in mm in mm in mm in mm in mm in mm in mm 1 /8 1.25 32 0.75 19 0.62 16 0.88 22 0.19 5.0 0.25 6.5 0.2639 6.5 1 /4 1.38 35 1.00 25 1.06 27 0.75 19 1.00 25 0.19 5.0 0.25 6.5 0.32 8.0 0.4018 10.0 3 /8 1.50 38 1.00 25 1.06 27 0.88 22 1.25 32 0.19 5.0 0.25 6.5 0.36 9.0 0.4078 10.5 1 /2 1.88 48 1.25 32 1.31 33 1.12 29 1.50 38 0.25 6.5 0.31 8.0 0.43 11.0 0.5337 13.5 3 /4 2.00 51 1.44 37 1.50 38 1.38 35 1.75 44 0.25 6.5 0.31 8.0 0.50 12.5 0.5457 14.0 1 2.38 60 1.62 41 1.69 43 1.75 44 2.25 57 0.38 9.5 0.44 11.0 0.58 14.5 0.6828 17.5 1 1 /4 2.62 67 1.75 44 1.81 46 2.25 57 2.50 64 0.38 9.5 0.44 11.0 0.67 17.0 0.7068 18.0 1 1 /2 3.12 79 1.75 44 1.88 48 2.50 64 3.00 76 0.44 11.0 0.50 12.5 0.70 18.0 0.7235 18.5 2 3.38 86 1.88 48 2.00 51 3.00 76 3.62 92 0.50 12.5 0.62 16.0 0.75 19.0 0.7565 19.0 2 1 /2 3.62 92 2.38 60 2.50 64 3.62 92 4.25 108 0.62 16.0 0.75 19.0 0.93 23.5 1.138 29.0 3 4.25 108 2.56 65 2.69 68 4.25 108 5.00 127 0.75 19.0 0.88 22.0 1.02 26.0 1.200 30.5 4 4.75 121 2.69 68 2.94 75 5.50 140 6.25 159 0.88 22.0 1.12 28.5 1.09 27.5 1.300 33.0 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 caps with NPS >2. - BS 3799 dimensions G and L 2 vary slightly from the ANSI values quoted. Dimension B is not specified in BS 3799. - Dimension B is the length of perfect thread. L 2 is the effective length of thread based on ANSI/ASME B1.20.1 (NTP), see page 10-11. Socket Weld and Threaded Fittings
Plugs and Bushings - ANSI B16.11/BS 3799 7-13 Dimensions and tolerances (based on ASME/ANSI B16.11-1991 and BS 3799:1974) NPS Length Square Head Plug Hex Head Plug Round Head Plug Hexagonal Head Bushing Square Head Plugs Round Head Plugs Hex Plugs and Bushings Height of Square Width Flats Diameter of Head Length Width Flats Hex Height, noal noal A B C E D F Bushing G Plug H in mm in mm in mm in mm in mm in mm in mm in mm 1 /8 0.38 9.5 0.25 6 0.28 7.0 0.41 10 1.38 35 0.44 11.0 0.25 6 1 /4 0.44 11.0 0.25 6 0.38 9.5 0.53 13 1.62 41 0.62 16.0 0.12 3 0.25 6 3 /8 0.50 12.5 0.31 8 0.44 11.0 0.69 17 1.62 41 0.69 17.5 0.16 4 0.31 8 1 /2 0.56 14.5 0.38 10 0.56 14.5 0.84 21 1.75 44 0.88 22.0 0.19 5 0.31 8 3 /4 0.62 16.0 0.44 11 0.62 16.0 1.06 27 1.75 44 1.06 27.0 0.22 6 0.38 10 1 0.75 19.0 0.50 13 0.81 20.5 1.31 33 2.00 51 1.38 35.0 0.25 6 0.38 10 1 1 /4 0.81 20.5 0.56 14 0.94 24.0 1.69 43 2.00 51 1.75 44.5 0.28 7 0.56 14 1 1 /2 0.81 20.5 0.62 16 1.12 28.5 1.91 48 2.00 51 2.00 51.0 0.31 8 0.62 16 2 0.88 22.0 0.69 17 1.31 33.5 2.38 60 2.50 64 2.50 63.5 0.34 9 0.69 17 2 1 /2 1.06 27.0 0.75 19 1.50 38.0 2.88 73 2.75 70 3.00 76.0 0.38 10 0.75 19 3 1.12 28.5 0.81 21 1.69 43.0 3.50 89 2.75 70 3.50 89.0 0.41 10 0.81 21 4 1.25 32.0 1.00 25 2.50 63.5 4.50 114 3.00 76 4.62 117.5 0.50 13 1.00 25 Notes - Plugs and bushes are not designated by Class and may be used at ratings up to Class. - Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS 3799:1974. Flush Bushing 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. Socket Weld and Threaded Fittings
Hexagonal and Round Nipples - BS 3799 Hexagonal nipple dimensions (based on BS 3799:1974) Noal Size Hexagonal Nipples A Equal Reducing in mm in mm mm mm mm mm mm mm mm 1 /8 6 - - 11 5 2 6 10-26 1 /4 8 - - 15 8 6 6 15-36 - - 1 /4 x 1 /8 8 x 6 15 5 2 6 15 10 31 3 /8 10 - - 18 11 8 8 16-40 - - 3 /8 x 1 /4 10 x 8 18 8 6 8 16 15 39 1 /2 15 - - 22 14 11 8 20-48 - - 1 /2 x 3 /8 15 x 10 22 11 8 8 20 16 44 - - 1 /2 x 1 /4 15 x 8 22 8 6 8 20 15 43 3 /4 20 - - 27 19 13 10 21-52 - - 3 /4 x 1 /2 20 x 15 27 14 11 9 21 20 50 - - 3 /4 x 3 /8 20 x 10 27 11 8 9 21 16 46 1 25 - - 35 24 17 10 25-60 - - 1 x 3 /4 25 x 20 35 19 13 10 25 21 56 - - 1 x 1 /2 25 x 15 35 14 11 10 25 20 55 1 1 /2 40 - - 50 38 30 16 26-68 - - 1 1 /2 x 1 40 x 25 50 24 17 16 26 25 67 - - 1 1 /2 x 3 /4 40 x 20 50 19 13 16 26 21 63 - - 1 1 /2 x 1 /2 40 x 15 50 14 11 16 26 20 62 2 50 - - 62 49 39 17 27-71 - - 2 x 1 1 /2 50 x 40 62 38 30 17 27 26 70 - - 2 x 1 50 x 25 62 24 17 18 27 25 70 - - 2 x 3 /4 50 x 20 62 19 13 17 27 21 65 - - 2 x 1 /2 50 x 15 62 14 11 18 27 20 65 B C Round Nipples E F W Round nipple dimensions (based on BS 3799:1974) Standard Lengths Wall Thickness Noal Size L T in mm mm mm mm mm /8 6 50 75 100 150 - /4 8 50 75 100 150 - /8 10 50 75 100 150 - /2 15-75 100 150 /4 20-75 100 150 1 25-75 100 150 Schedule 80 XXS 2 1 /2 65 - - 100 150 3 80 - - 100 150 4 100 - - - 150 1 1 /2 40-75 100 150 2 50-75 100 150 Note - Other round nipple lengths, L, are available when specified. 7-14
Welding Bosses - BS 3799 Threaded Fitting Socket Weld Fitting Threaded welding boss dimensions (BS 3799:1974) Length of Thread Length Bore Diameter Outside Diameter Noal Size L 2 A B D in mm mm mm mm mm mm 1 /8 6 6.70 38 8.4 16 22 1 /4 8 10.21 41 11.1 19 26 3 /8 10 10.36 45 14.2 22 32 1 /2 15 13.56 51 18.0 29 38 3 /4 20 13.86 51 23.0 35 45 1 25 17.34 51 29.0 45 60 1 1 /2 40 18.38 51 44.0 64 76 2 50 19.22 51 56.0 76 95 2 1 /2 65 28.89 51 67.0 95-3 80 30.48 57 82.0 110-4 100 33.02 64 95.0 140 - Socket-welding welding boss dimensions (BS 3799:1974) NPS Bore Diameter of Socket B Socket Wall Thickness Bore Diameter of Fitting C D Length Depth of Socket F S in mm mm mm mm mm mm mm mm 1 /8 6 10.7 3.2-6.8-28 10 1 /4 8 14.1 3.3-9.2-32 10 3 /8 10 17.6 3.5-12.5-34 11 1 /2 15 21.8 4.1 5.2 15.5 11.8 38 13 3 /4 20 27.4 4.3 6.1 21.0 15.5 38 13 1 25 34.1 5.0 7.0 26.5 20.7 35 16 1 1 /2 40 49.0 5.6 7.8 40.5 34.0 32 19 2 50 61.0 6.1 9.5 52.0 43.0 29 22 2 1 /2 65 73.8 7.7 10.4 62.0 54.0 29 22 3 80 89.7 8.3 12.2 78.0 66.0 29 22 7-15
Threaded Unions - BS 3799 Threaded union dimensions (BS 3799:1974) Noal Size End to End Width A/F Union Nut Height of Union Nut Width A/F of Ends Thickness of Shoulder Length of Thread A B C D E L 2 in mm mm mm mm mm mm mm 1 /8 6 40 32 16 17 3.2 6.70 1 /4 8 43 32 18 19 3.2 10.21 3 /8 10 48 36 19 22 3.2 10.36 1 /2 15 51 43 21 30 4.0 13.56 3 /4 20 57 50 24 36 4.8 13.86 1 25 64 60 25 41 4.8 17.34 1 1 /4 32 70 70 29 50 5.6 17.93 1 1 /2 40 79 78 30 60 5.6 18.38 2 50 89 95 37 70 6.4 19.22 2 1 /2 65 118 125 48 85 9.6 28.89 3 80 121 140 51 100 12.7 30.48 7-16
Socket Weld Unions - BS 3799 Socket weld union dimensions (BS 3799:1974) NPS Depth of Socket Distance between Bottom of Sockets Bore Diameter of Sockets Note - Bore diameter D corresponds to schedule 40 pipe. Socket Wall Thickness Bore Diameter of Union Thickness of Shoulder Width A/F of Nut Height of Nut S A B C D E F G in mm mm mm mm mm mm mm mm mm 1 /8 6 10 17 10.7 3.2 6.8 3.2 32 16 1 /4 8 10 17 14.1 3.3 9.2 3.2 32 18 3 /8 10 10 17 17.6 3.5 12.5 3.2 36 19 1 /2 15 10 18 21.8 4.1 15.5 4.0 41 21 3 /4 20 13 20 27.4 4.3 21.0 4.8 50 24 1 25 13 26 34.1 5.0 26.5 4.8 60 25 1 1 /4 32 13 28 42.9 5.3 35.0 5.6 70 29 1 1 /2 40 13 30 49.0 5.6 40.5 5.6 78 30 2 50 16 36 61.0 6.1 52.0 6.4 95 37 2 1 /2 65 16 57 73.8 7.7 62.0 9.6 125 48 3 80 16 70 89.7 8.3 78.0 12.7 140 51 7-17
Swage Nipples - BS 3799 Plain Threaded Threaded Plain Dimensions of swage nipples (BS 3799:1974) Parallel Length, Eccentricity Wall Thickness Noal Size A B C E T (both ends) Threaded Plain Threaded /Plain in mm mm mm mm mm mm 3 /8 x 1 /4 10 x 8 76 48 16 1.6 - - - 1 /2 x 3 /8 15 x 10 89 56 19 1.6 - - - 1 /2 x 1 /4 15 x 8 89 56 19 3.2 - - - 3 /4 x 1 /2 20 x 15 95 57 22 2.4 2.4 Schedule 160 XXS 3 /4 x 3 /8 20 x 10 95 57 22 4.0 - - - 1 x 3 /4 25 x 20 102 64 22 2.8 2.0 1 x 1 /2 25 x 15 102 64 22 5.2 4.4 1 1 /2 x 1 40 x 25 114 70 25 6.7 6.4 1 1 /2 x 3 /4 40 x 20 114 70 25 9.5 8.3 1 1 /2 x 1 /2 40 x 15 114 70 25 11.9 10.7 Schedule 2 x 1 1 /2 50 x 40 165 108 29 5.6 5.2 80 2 x 1 50 x 25 165 108 29 12.7 11.5 2 x 3 /4 50 x 20 165 108 29 15.5 13.5 Schedule 2 x 1 /2 50 x 15 165 108 29 17.5 15.9 160 XXS 2 1 /2 x 2 65 x 50 178 114 32 4.8 3.2 2 1 /2 x 1 1 /2 65 x 40 178 114 32 10.3 8.3 3 x 2 1 /2 80 x 65 203 133 41 7.1 6.7 3 x 2 80 x 50 203 133 41 11.9 9.9 3 x 1 1 /2 80 x 40 203 133 41 17.5 15.5 4 x 3 100 x 80 229 140 48 11.9 10.7 4 x 2 1 /2 100 x 65 229 140 48 19.1 17.5 7-18
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, 3 1 /2, 4, 5, 6 or 8). Run pipe sizes (NPS) for: Socket Weld Outlets, Threaded Outlets, Std & XS Buttweld Outlets, Run pipe sizes (NPS) for: Socket weld Outlets, Threaded Outlets, XXS Buttweld Outlets. 1 /2 1 /2 Outlet Pipe Sizes (NPS) 3 /4 1 1 1 /4 1 1 /2 2 2 1 /2 3 3 1 /2 4 >4 3 /4 1 1 1 /4 1 1 /2 2 2 1 /2 3 3 1 /2 4 3 1 /4 1 1 1 /4 1 1 /2 2 2 1 /2 3 3 1 /2 4 5 1 1 1 /2-1 1 /4 1 1 /2 2 2 1 /2 3 3 1 /2 4 5 6 1 1 /2-1 1 /4 2 1 /2-2 2 2 1 /2 3 3 1 /2 4 5 6 8 2 1 /2-2 5-3 2 1 /2 3 1 /2-3 4-3 1 /2 4 5 6 8 10 8-3 12-6 3 1 /2-3 5-4 6-5 5 6 8 10 14-2 36-10 36-14 5-4 8-6 12-8 6 8 10 14-12 20-6 Flat Flat 10-6 18-10 24-14 10-8 12-10 14-12 20-16 36-4 - - 36-12 36-20 36-26 18-12 18-14 20-16 36-24 Flat - - Flat Flat Flat 36-20 36-20 36-24 - - - - - - - Flat Flat Flat - - 1-3 /4 1 1 1 /4-1 1 /2 1 1 /2 2 2 1 /2 2-1 1 /4 2 1 /2-1 1 /4 2 1 /2-2 2 1 /2-2 2 1 /2 3 6-2 1 /2 10-3 10-3 3 1 /2-3 3 1 /2-3 4 36-8 36-12 36-12 8-4 5-4 5 Flat Flat Flat 20-10 8-6 6 - - - 36-24 18-10 10-8 - - - Flat 36-20 20-12 - - - - Flat 36-24 - - - - - Flat Order to specific run pipe size Order to specific run pipe size 7-19
Socket Weld Outlets Reducing Size Full Size socket weld outlet dimensions and weights Reducing sizes Full sizes Weight Weight Outlet A C F G A C D F G Size kg/ kg/ mm mm mm mm piece mm mm mm mm mm piece 1 /2 25.50 24.00 31.80 10.00 0.140 25.50 22.40 16.00 31.80 10.00 0.060 3 /4 27.00 30.00 36.60 13.00 0.150 27.00 30.00 21.00 36.60 13.00 0.110 1 33.40 36.50 46.10 13.00 0.300 33.40 36.50 26.70 46.10 13.00 0.300 1 1 /4 33.40 44.50 55.60 13.00 0.400 33.40 44.50 35.00 55.60 13.00 0.300 1 1 /2 34.80 51.00 62.00 13.00 0.470 34.80 51.00 40.90 62.00 13.00 0.400 2 38.00 65.00 74.70 16.00 0.730 38.00 65.00 52.50 74.70 16.00 0.630 2 1 /2 46.00 76.15 87.40 16.00 1.250 46.00 76.15 62.80 87.40 16.00 1.030 3 50.70 93.50 104.80 16.00 1.720 50.70 93.50 77.90 104.80 16.00 1.700 3 1 /2 53.80 101.50 122.30 19.00 1.950 53.30 112.75 90.10 117.50 19.00 1.950 4 57.00 120.50 130.20 19.00 3.300 55.50 127.00 102.20 130.20 19.00 3.000 socket weld outlet dimensions and weights Reducing sizes Outlet Size Weight A C F G mm mm mm mm kg/piece 1 /2 31.50 19.00 40.00 10.00 0.250 3 /4 36.50 25.50 46.00 13.00 0.370 1 39.60 33.40 57.20 13.00 0.600 1 1 /4 41.00 38.00 65.10 13.00 0.750 1 1 /2 42.70 49.30 76.30 13.00 0.920 7-20
Threaded and Nipple Outlets Reducing Size Full Size threaded outlet dimensions and weights Outlet Size Reducing sizes Weight Full sizes Weight A C F A C D F mm mm mm kg/piece mm mm mm mm kg/piece 1 /2 25.50 24.00 31.80 0.110 25.50 24.00 16.00 31.80 0.070 3 /4 27.00 30.00 36.60 0.160 27.00 30.00 20.65 36.60 0.110 1 33.40 36.50 46.10 0.300 33.40 36.50 27.00 46.10 0.200 1 1 /4 33.40 44.50 55.60 0.410 33.40 44.50 34.90 55.60 0.320 1 1 /2 34.80 51.00 62.00 0.450 34.80 51.00 41.20 62.00 0.410 2 38.00 65.00 74.70 0.800 38.00 65.00 52.40 74.70 0.650 2 1 /2 46.00 76.15 87.40 1.370 46.00 76.15 63.50 87.40 1.130 3 50.70 93.50 104.80 2.000 50.70 93.50 77.80 104.80 1.950 3 1 /2 53.80 101.50 122.30 2.610 53.30 112.75 90.50 117.50 2.050 4 57.00 120.50 130.20 3.230 55.50 120.50 103.20 130.20 3.090 threaded outlet dimensions and weights Reducing sizes Outlet Size Weight A C F mm mm mm kg/piece 1 /2 31.50 19.00 40.00 0.020 3 /4 36.50 25.50 46.00 0.350 1 39.60 33.40 57.20 0.600 1 1 /4 41.00 38.00 65.10 0710 1 1 /2 42.70 49.30 76.30 0.900 2 52.10 70.00 92.10 2.300 Plain end nipple outlet dimensions Reducing sizes A C A C mm mm mm mm 1 /2 89 24 89 14.5 3 /4 89 30 89 19.0 1 89 36.5 89 25.5 Outlet Size 1 1 /4 89 44.5 89 33.4 1 1 /2 89 51 89 38.0 2 89 65 89 43 Nipple 7-21
Buttweld Outlets Reducing Size Full Size Standard buttweld outlet dimensions and weights Outlet Size Reducing sizes Weight Full sizes Weight A C A C D mm mm kg/piece mm mm mm kg/piece 1 /2 19.00 24.00 0.08 19.00 24.00 15.80 0.07 3 /4 22.20 30.00 0.11 22.20 30.00 21.00 0.11 1 27.00 36.50 0.25 27.00 36.50 26.60 0.18 1 1 /4 31.50 44.50 0.35 31.50 44.50 35.00 0.32 1 1 /2 33.40 51.00 0.45 33.40 51.00 40.90 0.36 2 38.00 65.00 0.80 38.00 65.00 52.50 0.68 2 1 /2 41.20 76.15 1.13 41.20 76.15 62.80 1.02 3 44.50 93.50 1.82 44.50 93.50 78.00 1.70 3 1 /2 47.50 112.60 2.50 47.50 112.60 90.20 2.30 4 51.00 120.50 2.86 51.00 120.50 102.20 3.10 5 57.00 141.30 4.65 57.00 141.30 128.20 3.90 6 60.30 170.00 6.45 60.30 170.00 154.00 6.70 8 69.80 220.50 10.66 69.80 220.50 202.50 13.00 10 78.00 274.00 18.00 78.00 274.00 254.00 16.00 12 86.00 324.00 27.00 86.00 324.00 304.50 27.00 14 89.00 356.00 30.00 89.00 356.00 336.50 32.00 16 94.00 406.00 34.00 94.00 406.00 387.00 42.00 18 97.00 459.00 44.00 103.00 473.00 438.00 57.00 20 102.00 508.00 54.00 117.00 508.00 489.00 80.00 24 144.00 609.00 101.00 144.00 609.00 590.00 114.00 26 156.00 660.00 120.00 156.00 660.00 641.00 138.00 30 175.00 762.00 190.00 175.00 762.00 743.00 230.00 36 206.00 914.00 310.00 206.00 914.00 895.00 336.00 7-22
Buttweld Outlets Reducing Size Full Size Extra strong (XS) buttweld outlets dimensions and weights Outlet Size Reducing sizes Weight Full sizes Weight A C A C D mm mm kg/piece mm mm mm kg/piece 1 /2 19 24.00 0.09 19.00 24.00 13.90 0.07 3 /4 22.20 30.00 0.14 22.20 30.00 18.90 0.11 1 27.00 36.50 0.21 25.40 36.50 24.30 0.18 1 1 /4 31.50 44.50 0.41 28.50 44.50 32.80 0.32 1 1 /2 33.40 51.00 0.50 31.50 51.00 38.10 0.41 2 38.00 65.00 0.80 38.00 65.00 49.30 0.75 2 1 /2 41.20 76.15 1.18 41.20 76.15 59.00 1.15 3 44.50 93.50 1.90 44.50 93.50 73.70 1.90 3 1 /2 47.50 112.60 2.55 47.50 112.60 85.40 2.30 4 51.00 120.50 3.00 51.00 120.50 97.20 3.50 5 57.00 141.30 4.75 57.00 141.30 122.30 4.30 6 78.00 170.00 10.50 78.00 170.00 146.30 6.80 8 98.50 220.00 17.00 98.50 220.00 194.00 14.60 10 94.00 265.00 21.00 98.30 256.00 247.50 21.00 12 103.00 613.00 28.00 100.00 320.00 298.00 28.00 14 100.00 351.00 32.00 105.50 355.00 330.00 34.50 16 106.50 403.00 46.50 113.00 419.00 381.00 52.20 18 111.00 456.00 59.00 119.00 474.00 432.00 59.00 20 119.00 510.00 72.00 127.00 528.00 482.50 85.00 24 152.00 610.00 142.00 152.00 610.00 584.20 146.00 26 165.00 660.00 168.00 165.00 660.00 635.00 182.00 30 181.00 762.00 218.00 181.00 762.00 738.00 255.00 36 212.50 914.00 404.00 212.00 914.00 889.00 446.00 Schedule 160 and double extra strong (XXS) buttweld outlets dimensions and weights Reducing sizes Full sizes Weight Outlet Size A C A C D mm mm kg/piece mm mm mm 1 /2 28.50 14.30 0.110 28.50 14.30 0.110 3 /4 31.50 19.00 0.320 31.50 19.00 0.320 1 38.00 25.50 0.380 38.00 25.50 0.380 1 1 /4 44.50 33.40 0.570 44.50 33.40 0.570 1 1 /2 50.70 38.00 0.800 50.70 38.00 0.800 2 55.50 42.90 1.00 55.50 42.90 1.00 2 1 /2 61.80 53.90 1.550 61.80 53.90 1.550 3 73.00 73.00 2.900 73.00 73.00 2.900 4 84.00 98.40 4.770 84.00 98.40 4.770 5 93.50 122.20 6.470 93.50 122.20 6.470 6 104.70 146.00 12.80 104.70 146.00 13.80 7-23
45 Lateral Outlets Socket Weld Threaded Buttweld lateral outlets - for 45 lateral connections dimensions and weights Dimensions Noal Run Outlet Size OD of Outlet Weight Sizes C E Socket Weld & Threaded Buttweld in mm mm mm - kg/piece 2 1 /2-1 1 /4, 12-3 1 /4 36.5 39.7 31.8 0.23 2 1 /2-1 1 /4, 12-3 3 /8 36.5 39.7 31.8 0.23 2 1 /2-1 1 /4, 12-3 /2 36.5 39.7 31.8 Outside 0.30 1 1 /2-1 1 /4, 5-2, diameter at 12-6 /4 43.6 47.6 35.7 bevel 0.34 2 1 /2-2, 5-2, matches 1 54.0 57.2 45.2 12-6 the outlet 0.52 pipe diameter 2 1 /2-2, 5-3, 1 12-6 /4 67.5 61.9 54.6 0.86 2 1 /2-2, 5-3, 12-6 1 1 /2 76.2 66.7 63.5 1.20 5-4, 8-6, 12-10 2 104.8 81.0 82.6 3.29 lateral outlets - for 45 lateral connections dimensions and weights Dimensions Noal Elbow Outlet Size OD of Outlet Weight Size C E Socket Weld & Threaded Buttweld in mm mm mm - kg/piece 2 1 /2-1 1 /4, 12-3 1 /4 36.5 39.7 31.8 0.34 2 1 /2-1 1 /4, 12-3 /8 36.5 39.7 31.8 0.34 1 1 /2-1 1 /4, 5-2, Outside 12-6 /2 43.6 47.6 35.7 diameter at 0.39 bevel 2 1 /2-2, 5-3, matches 12-6 /4 54.0 57.2 45.2 0.57 the outlet 2 1 /2-2, 5-3, 12-6 1 67.5 61.9 54.8 pipe diameter 1.00 2 1 /2-2, 5-3, 12-6 1 1 /4 76.2 66.7 63.5 1.32 5-4, 8-6, 12-10 1 1 /2 104.8 81.0 82.6 2.80 7-24
Elbow Outlets Socket Weld Threaded Buttweld elbow outlet for 90 long radius elbow, dimensions and weights Dimensions Noal Elbow Outlet Size OD of Outlet Weight Size C E Socket Weld & Threaded Buttweld in mm mm mm - kg/piece 36-1 1 /4 1 /4 38.1 38.1 31.8 0.23 36-1 1 /4 3 /8 38.1 38.1 31.8 0.23 Outside 36-1 1 /4 1 /2 38.1 38.1 31.8 diameter at 0.30 36-1 1 /4 3 /4 43.6 45.2 35.7 bevel 0.34 36-2 1 54.0 52.4 45.2 matches 0.52 the outlet 36-2 1 1 /4 73.0 55.6 54.8 0.86 pipe diameter 36-2 1 1 /2 79.4 58.8 63.5 1.20 36-3 2 106.4 69.9 82.6 2.39 elbow outlet for 90 long radius elbow, dimensions and weights Dimensions Noal Elbow Outlet Size OD of Outlet Weight Size C E Socket Weld & Threaded Buttweld in mm mm mm - kg/piece 36-1 1 /4 1 /4 38.1 38.1 31.8 0.34 36-1 1 /4 3 /8 38.1 38.1 31.8 Outside 0.34 36-1 1 /4 /2 43.6 45.2 35.7 diameter at 0.39 bevel 36-2 3 /4 54.0 54.4 45.2 matches 0.57 36-2 1 73.0 55.6 54.8 the outlet 1.00 36-2 1 1 /4 79.4 58.8 63.5 pipe diameter 1.77 36-3 1 1 /2 106.4 69.6 82.6 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 NPS Length of Socket Unions Length or Centre to Face Tolerances for Other Fittings ±mm ±mm <25 6 1.5 25 to 40 6 3.0 >40 to 65 10 4.5 >65 to 75 12 6.0 >75 to 110 16 - >75 to 150-8.0 >150-10.0 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 and external taper thread Noal Size of Outlet Internal Parallel Thread (R p ) Minimum Outside Diameter Minimum Outside Diameter of Body Behind External Thread External Taper Thread (R) Minimum Inside Diameter of Body Behind Internal Thread D E d in mm mm mm mm 1 /8 6 15.0 9.8 8.6 1 /4 8 18.5 13.3 11.4 3 /8 10 22.0 16.8 15.0 1 /2 15 27.0 21.1 18.6 3 /4 20 32.5 26.6 24.1 1 25 39.5 33.4 30.3 1 1 /4 32 49.0 42.1 39.0 1 1 /2 40 56.0 48.0 44.8 2 50 68.0 59.8 56.7 2 1 /2 65 84.0 75.4 72.2 3 80 98.0 88.1 84.9 4 100 124.0 113.3 110.1 5 125 151.0 138.7 135.5 6 150 178.0 164.1 160.9 7-26
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) Noal Size of Outlets Centre to Face A in mm mm 1 /8 6 16 1 /4 8 22 3 /8 10 25 1 /2 15 32 3 /4 20 35 1 25 43 1 1 /4 32 51 1 1 /2 40 52 2 50 64 2 1 /2 65 76 3 80 89 4 100 115 5 125 140 6 150 160 Threaded equal 45 equal elbow dimensions (BS 1740:Part 1) Noal Size of Outlets Centre to Face A in mm mm 3 /8 10 19 1 /2 15 22 3 /4 20 27 1 25 33 1 1 /4 32 38 1 1 /2 40 44 2 50 51 7-27
Elbows - BS 1740 Equal Elbows, Male and Female Reducing Elbows Note - These may also be referred to as Street Elbows Threaded equal elbows, male and female dimensions (BS 1740:Part 1) Centre to face, Noal Size of Outlets A B Bore of Male End Bore of Male End max in mm mm mm mm mm 1 /4 8 19 27 6.5 8.0 3 /8 10 21 29 8.5 10.5 1 /2 15 25 35 11.5 13.0 3 /4 20 30 40 18.0 21.0 1 25 37 46 24.0 26.0 1 1 /4 32 43 54 30.0 32.0 1 1 /2 40 49 57 37.0 39.0 2 50 59 70 48.0 51.0 2 1 /2 65 68 83 62.0 66.0 3 80 81 94 75.0 79.0 4 100 100 115 97.0 104.0 Threaded reducing elbow dimensions (BS 1740:Part 1) Noal Size of Outlets Centre to Face, (1 x 2) A B in mm mm mm 1 /2 x 3 /4 15 x 8 25 32 1 /2 x 3 /8 15 x 10 27 32 3 /4 x 3 /8 1 20 x 10 1 29 35 3 /4 x 1 /2 20 x 15 32 35 1 x 1 /2 25 x 15 35 43 1 x 3 /4 25 x 20 38 43 1 1 /4 x 1 /2 1 32 x 15 1 38 51 1 1 /4 x 3 /4 32 x 20 41 51 1 1 /4 x 1 32 x 25 44 51 1 1 /2 x 3 /4 40 x 20 41 52 1 1 /2 x 1 40 x 25 44 52 1 1 /2 x 1 1 /4 40 x 32 49 52 2 x 3 /4 1 50 x 20 1 44 64 2 x 1 50 x 25 48 64 2 x 1 1 /4 50 x 32 52 64 2 x 1 1 /2 50 x 40 56 64 Note 1 Non-prefered size. The use of these sizes should be avoided. 7-28
Increasing and Reducing Tees - BS 1740 Increasing on the Branch Tee Reducing on the Run and Branch Tee Reducing on the Run Only Tee Threaded tee, increasing on branch, dimensions (BS 1740:Part 1) Noal Size of Outlets (1 x 2) A Centre to Face in mm mm mm 3 /8 x 1 /2 10 x 15 32 27 1 /2 x 3 /4 15 x 20 35 32 1 /2 x 1 15 x 25 43 35 3 /4 x 1 20 x 25 43 38 1 x 1 1 /4 25 x 32 51 44 1 x 1 1 /2 25 x 40 52 44 1 1 /4 x 1 1 /2 32 x 40 52 49 1 1 /2 x 2 40 x 50 64 56 2 x 2 1 /2 50 x 65 76 67 2 x 3 50 x 80 89 73 B Threaded tee, reducing on branch and/or run, dimensions (BS 1740:Part 1) Noal Size of Outlets (1 x 2 x 3) A Centre to Face in mm mm mm 3 /4 x 1 /2 x 1 /2 20 x 15 x 15 32 35 3 /4 x 1 /2 x 3 /4 20 x 15 x 20 35 35 1 x 3 /4 x 1 /2 25 x 20 x 15 35 43 1 x 3 /4 x 3 /4 25 x 20 x 20 38 43 1 x 3 /4 x 1 25 x 20 x 25 43 43 1 1 /4 x 1 x 3 /4 32 x 25 x 20 41 51 1 1 /4 x 1 x 1 32 x 25 x 25 44 51 1 1 /4 x 1 x 1 1 /4 32 x 25 x 32 51 51 1 1 /2 x 1 x 1 40 x 25 x 25 44 52 B 7-29
Reducing Tees - BS 1740 Reducing on the Branch Tee Reducing tee dimensions (BS 1740:Part 1) Noal Size of Outlets Centre to Face, (1 x 2) A B in mm mm mm 3 /8 x 1 /4 10 x 8 22 24 1 /2 x 1 /4 15 x 8 25 32 1 /2 x 3 /8 15 x 10 27 32 3 /4 x 1 /4 20 x 8 27 35 3 /4 x 3 /8 20 x 10 29 35 3 /4 x 1 /2 20 x 15 32 35 1 x 1 /4 1 25 x 8 1 30 43 1 x 3 /8 1 25 x 10 1 32 43 1 x 1 /2 25 x 15 35 43 1 x 3 /4 25 x 20 38 43 1 1 /4 x 1 /2 32 x 15 38 51 1 1 /4 x 3 /4 32 x 20 41 51 1 1 /4 x 1 32 x 25 44 51 1 1 /2 x 1 /2 1 40 x 15 1 38 52 1 1 /2 x 3 /4 40 x 20 41 52 1 1 /2 x 1 40 x 25 44 52 1 1 /2 x 1 1 /4 40 x 32 49 52 2 x 1 /2 1 50 x 15 1 41 64 2 x 3 /4 1 50 x 20 1 44 64 2 x 1 50 x 25 48 64 2 x 1 1 /4 50 x 32 52 64 2 x 1 1 /2 50 x 40 56 64 2 1 /2 x 1 65 x 25 54 76 2 1 /2 x 1 1 /2 65 x 40 60 76 2 1 /2 x 2 65 x 50 67 76 3 x 1 80 x 25 60 89 3 x 1 1 /4 80 x 32 64 89 3 x 1 1 /2 80 x 40 67 89 3 x 2 80 x 50 73 89 3 x 2 1 /2 80 x 65 79 89 4 x 1 1 /2 100 x 40 76 115 4 x 2 100 x 50 83 115 4 x 3 100 x 80 95 115 6 x 3 150 x 80 120 160 6 x 4 150 x 100 135 160 Note 1 Non-prefered size. The use of these sizes should be avoided. 7-30