Weldolet Dimensions Charts (MSS-SP 97)
Weldolet dimensions and weights (“center of the run to Weldolet face”, “size-on-size” and “reducing” Weldolets sizes by NPS and schedule, and “run sizes combinations”).
Table of Content
WELDOLET DIMENSIONS
“Center of Run to Face” Size
The distance between the run pipe center line and the Weldolet top-bore in mm (by pipe NPS/Schedule and Weldolet size):
| RUN PIPE NPS | RUN PIPE SCHEDULE |
WELDOLET DIMENSIONS |
|||||||||||
| SIZE | SCH. | 2″ | 3″ | 4″ | 6″ | 8″ | 10″ | 12″ | 14″ | 16″ | 18″ | 20″ | 24″ |
| 2″ | STD-40 XS-80 |
70 | |||||||||||
| XXS-160 | 87 | ||||||||||||
| 3″ | STD-40 XS-80 |
84 | 91 | ||||||||||
| XXS-160 | 101 | 119 | |||||||||||
| 4″ | STD-40 XS-80 |
97 | 103 | 111 | |||||||||
| XXS-160 | 114 | 132 | 144 | ||||||||||
| STD-40 | 124 | 130 | 138 | 148 | |||||||||
| 6″ | XS-80 | 124 | 130 | 138 | 165 | ||||||||
| XXS-160 | 141 | 159 | 171 | 192 | |||||||||
| STD-40 | 149 | 156 | 164 | 176 | 183 | ||||||||
| 8″ | XS-80 | 149 | 156 | 164 | 191 | 197 | |||||||
| XXS-160 | 167 | 184 | 197 | 218 | 224 | ||||||||
| STD-40 | 176 | 183 | 191 | 205 | 210 | 218 | |||||||
| 10″ | XS-80 | 176 | 183 | 191 | 218 | 238 | 235 | ||||||
| XXS-160 | 194 | 211 | 224 | 245 | 251 | 265 | |||||||
| STD | 202 | 208 | 216 | 228 | 255 | 245 | 251 | ||||||
| 12″ | XS | 202 | 208 | 216 | 243 | 264 | 267 | 265 | |||||
| XXS-160 | 219 | 237 | 249 | 270 | 276 | 291 | 324 | ||||||
| 14″ | STD | 218 | 224 | 232 | 245 | 251 | 259 | 267 | 270 | ||||
| XS | 218 | 224 | 231 | 239 | 279 | 270 | 278 | 286 | |||||
| 16″ | STD | 243 | 249 | 257 | 270 | 276 | 284 | 292 | 295 | 300 | |||
| XS | 243 | 249 | 257 | 284 | 305 | 293 | 303 | 306 | 319 | ||||
| 18″ | STD | 268 | 275 | 283 | 295 | 302 | 310 | 318 | 321 | 325 | 335 | ||
| XS | 268 | 275 | 283 | 310 | 330 | 321 | 329 | 332 | 338 | 352 | |||
| 20″ | STD | 294 | 300 | 308 | 321 | 327 | 335 | 343 | 346 | 351 | 356 | 376 | |
| XS | 294 | 300 | 308 | 335 | 356 | 346 | 354 | 557 | 364 | 370 | 386 | ||
| 24″ | STD | 345 | 351 | 359 | 372 | 378 | 386 | 394 | 397 | 402 | 406 | 411 | 446 |
| XS | 345 | 351 | 359 | 386 | 406 | 397 | 405 | 408 | 414 | 421 | 429 | 449 | |
Size on Size Weldolet Schedule 40
Sizes in inches, weights in pounds
| Weldolet Size (inches) | A | B | C | D | Weldolet weight in lbs |
| 1/2 | 3/4 | 1 3/8 | 15/16 | 5/8 | 0.15 |
| 3/4 | 7/8 | 1 5/8 | 1 3/16 | 13/16 | 0.25 |
| 1 | 1 1/16 | 2 | 1 7/16 | 1 1/32 | 0.4 |
| 1 1/4 | 1 1/4 | 2 3/8 | 1 3/4 | 1 3/8 | 0.7 |
| 1 1/2 | 1 5/16 | 2 7/8 | 2 | 1 5/8 | 0.8 |
| 2 | 1 1/2 | 3 1/2 | 2 9/16 | 2 1/16 | 1.5 |
| 2 1/2 | 1 5/8 | 4 1/6 | 3 | 2 7/16 | 2.25 |
| 3 | 1 3/4 | 4 13/16 | 3 11/16 | 3 1/16 | 3.75 |
| 3 1/2 | 2 | 5 3/8 | 3 7/8 | 3 9/16 | 5 |
| 4 | 2 | 6 | 4 3/4 | 4 | 6.7 |
| 5 | 2 1/4 | 7 1/8 | 5 9/16 | 5 1/16 | 8.5 |
| 6 | 2 3/8 | 8 1/2 | 6 11/16 | 6 1/16 | 14 |
| 8 | 2 3/4 | 10 3/8 | 8 11/16 | 7 15/16 | 28 |
| 10 | 3 1/16 | 12 9/16 | 10 13/16 | 10 | 39 |
| 12 | 3 3/8 | 14 7/8 | 12 13/16 | 12 | 65 |
| 14 | 3 1/2 | 16 1/8 | 14 1/16 | 13 1/4 | 70 |
| 16 | 3 11/16 | 18 1/4 | 16 1/16 | 15 1/4 | 92 |
| 18 | 4 1/16 | 20 3/4 | 18 5/8 | 17 1/4 | 125 |
| 20 | 4 5/8 | 23 1/16 | 20 1/16 | 19 1/4 | 175 |
| 24 | 5 3/8 | 27 7/8 | 25 1/8 | 23 1/4 | 280 |
| 30 | 5 3/8 | 34 1/16 | 30 7/16 | 29 1/4 | 440 |
| 36 | 5 3/8 | 34 1/16 | 36 1/2 | 35 1/4 | 1180 |
Size on Size Weldolet Schedule XS
Sizes in inches, weights in pounds
| Weldolet Size (inches) | A | B | C | D | Weldolet weight in lbs |
| 1/2 | 3/4 | 1.375 | 15/16 | 5/8 | 0.15 |
| 3/4 | 7/8 | 1.625 | 1.1875 | 13/16 | 0.25 |
| 1 | 1.0625 | 2 | 1.4375 | 1.03125 | 0.4 |
| 1 1/14 | 1.25 | 2.4375 | 1.75 | 1.375 | 0.7 |
| 1.5 | 1.3125 | 2.875 | 2 | 1.625 | 0.9 |
| 2 | 1.5 | 3.5 | 2.5625 | 2.0625 | 1.6 |
| 2 1/2 | 1.625 | 4.0625 | 3 | 2.4375 | 2.5 |
| 3 | 1.75 | 4.8125 | 3.6875 | 3.0625 | 4.1 |
| 3 1/2 | 2 | 5.375 | 3.875 | 3.5625 | 5.1 |
| 4 | 2 | 6 | 4.75 | 4 | 7.5 |
| 5 | 2.25 | 7.125 | 5.5625 | 5.0625 | 9.5 |
| 6 | 3.0625 | 8.875 | 6.6875 | 6.0625 | 15 |
| 8 | 3.875 | 10.625 | 8.6875 | 7.625 | 32 |
| 10 | 3.5 | 12.875 | 10.4375 | 9.75 | 46 |
| 12 | 3.9375 | 15.1875 | 13 | 11.75 | 61 |
| 14 | 4.125 | 16.6875 | 14.3125 | 13 | 75 |
| 16 | 4.4375 | 18.875 | 16.5 | 15 | 115 |
| 18 | 4.6875 | 21.125 | 18.625 | 17 | 130 |
| 20 | 5 | 23.375 | 20.8125 | 19 | 187 |
| 24 | 5.5 | 27.875 | 25.125 | 23 | 316 |
| 26 | 5.75 | 30.125 | 27.25 | 25 | 370 |
Size on Size Weldolet Schedule 160/XXS
Sizes in inches, weights in pounds
| Weldolet Size (inches) | A | B | C | Weldolet weight in lbs |
| 1/2 | 1 1/8 | 1 3/8 | 9/16 | 0.25 |
| 3/4 | 1 1/4 | 1 3/4 | 3/4 | 0.70 |
| 1 | 1 1/2 | 2 | 1 | 0.80 |
| 1 1/4 | 1 3/4 | 2 7/16 | 1 5/16 | 1.25 |
| 1 1/2 | 2 | 2 3/4 | 1 1/2 | 1.75 |
| 2 | 2 3/16 | 3 3/16 | 1 11/16 | 2.15 |
| 2 1/2 | 2 7/16 | 3 13/16 | 2 1/8 | 3.40 |
| 3 | 2 7/8 | 4 3/4 | 2 7/8 | 6.35 |
| 4 | 3 5/16 | 6 | 3 7/8 | 10.50 |
| 5 | 3 11/16 | 7 3/8 | 4 13/16 | 14.25 |
| 6 | 4 1/8 | 8 11/16 | 5 3/4 | 30.25 |
Reducing Weldolet Schedule 40
Sizes in inches, weights in pounds
| Weldolet Size (inches) | A | B | C | Weldolet weight in lbs |
| 1/8 | 5/8 | 1 | 5/8 | 0.10 |
| 1/4 | 5/8 | 1 | 5/8 | 0.10 |
| 3/8 | 3/4 | 1 1/4 | 3/4 | 0.15 |
| 1/2 | 3/4 | 1 3/8 | 15/16 | 0.20 |
| 3/4 | 7/8 | 1 3/4 | 1 3/16 | 0.25 |
| 1 | 1 1/16 | 2 1/8 | 1 7/16 | 0.50 |
| 1 1/4 | 1 1/4 | 2 9/16 | 1 3/4 | 0.80 |
| 1 1/2 | 1 5/16 | 2 7/8 | 2 | 1.00 |
| 2 | 1 1/2 | 3 1/2 | 2 9/16 | 1.75 |
| 2 1/2 | 1 5/8 | 4 1/16 | 3 | 2.50 |
| 3 | 1 3/4 | 4 13/16 | 3 11/16 | 4.00 |
| 3 1/2 | 1 7/8 | 5 1/4 | 4 | 5.50 |
| 4 | 2 | 6 | 4 3/4 | 6.30 |
| 5 | 2 1/4 | 7 1/16 | 5 9/16 | 10.25 |
| 6 | 2 3/8 | 8 3/16 | 6 11/16 | 12.00 |
| 8 | 2 3/4 | 10 1/4 | 8 11/16 | 23.00 |
| 10 | 3 1/16 | 12 11/16 | 10 13/16 | 36.00 |
| 12 | 3 3/8 | 14 7/8 | 12 13/16 | 59.00 |
| 14 | 3 1/2 | 16 9/16 | 14 1/16 | 66.00 |
| 16 | 3 11/16 | 18 1/4 | 16 1/16 | 75.00 |
| 18 | 3 13/16 | 21 1/16 | 18 1/16 | 97.00 |
| 20 | 4 | 23 3/16 | 20 | 118.00 |
| 24 | 4 9/16 | 27 3/4 | 24 3/16 | 220.00 |
| 26 | 4 11/16 | 29 7/8 | 26 1/4 | 265.00 |
| 30 | 5 3/8 | 34 1/2 | 30 7/16 | 430.00 |
| 36 | 5 3/8 | 40 1/2 | 36 1/2 | 900.00 |
Reducing Weldolet Schedule XS
Sizes in inches, weights in pounds
| Weldolet Size (inches) | A | B | C | Weldolet weight in lbs |
| 1/8 | 5/8 | 1 | 5/8 | 0.10 |
| 1/4 | 5/8 | 1 | 5/8 | 0.10 |
| 3/8 | 3/4 | 1 1/4 | 3/4 | 0.15 |
| 1/2 | 3/4 | 1 3/8 | 15/16 | 0.20 |
| 3/4 | 7/8 | 1 3/4 | 1 3/16 | 0.30 |
| 1 | 1 1/16 | 2 1/8 | 1 7/16 | 0.50 |
| 1 1/4 | 1 1/4 | 2 9/16 | 1 3/4 | 0.90 |
| 1 1/2 | 1 5/16 | 2 7/8 | 2 | 1.10 |
| 2 | 1 1/2 | 3 1/2 | 2 9/16 | 1.75 |
| 2 1/2 | 1 5/8 | 4 1/16 | 3 | 2.60 |
| 3 | 1 3/4 | 4 13/16 | 3 11/16 | 4.10 |
| 3 1/2 | 1 7/8 | 5 1/4 | 4 | 5.60 |
| 4 | 2 | 6 | 4 3/4 | 6.40 |
| 5 | 2 1/4 | 7 1/16 | 5 9/16 | 10.40 |
| 6 | 3 1/16 | 8 5/16 | 6 11/16 | 23.00 |
| 8 | 3 7/8 | 11 1/2 | 8 11/16 | 37.00 |
| 10 | 3 11/16 | 13 3/16 | 10 7/16 | 46.00 |
| 12 | 4 1/16 | 15 5/8 | 12 1/2 | 61.00 |
| 14 | 3 15/16 | 16 | 13 13/16 | 70.00 |
| 16 | 4 3/16 | 18 3/8 | 15 7/8 | 102.00 |
| 18 | 4 3/8 | 20 3/8 | 17 15/16 | 130.00 |
| 20 | 4 11/16 | 22 15/16 | 20 1/16 | 158.00 |
| 24 | 5 1/2 | 28 1/2 | 24 3/16 | 290.00 |
| 26 | 5 3/4 | 30 1/8 | 27 1/4 | 350.00 |
Reducing Weldolet Schedule 160/XXS
Sizes in inches, weights in pounds
| Weldolet Size (inches) | A | B | C | Weldolet weight in lbs |
| 1/2 | 1 1/8 | 1 3/8 | 9/16 | 0.25 |
| 3/4 | 1 1/4 | 1 3/4 | 3/4 | 0.70 |
| 1 | 1 1/2 | 2 | 1 | 0.85 |
| 1 1/4 | 1 3/4 | 2 7/16 | 1 5/16 | 1.25 |
| 1 1/2 | 2 | 2 3/4 | 1 1/2 | 1.75 |
| 2 | 2 3/16 | 3 3/16 | 1 11/16 | 2.15 |
| 2 1/2 | 2 7/16 | 3 13/16 | 2 1/8 | 3.40 |
| 3 | 2 7/8 | 4 3/4 | 2 7/8 | 6.30 |
| 4 | 3 5/16 | 6 | 3 7/8 | 10.50 |
| 5 | 3 11/16 | 7 3/8 | 4 13/16 | 14.25 |
| 6 | 4 1/8 | 9 5/16 | 5 3/4 | 28.00 |
HEAVY WALL THICKNESS WELDOLET DIMENSIONS
| Run WT | 3/4 | 1 | 1 1/4 | 1 1/2 | 1 3/4 | 2 | 2 1/4 | 2 3/4 | 3 | |||||||||
| Run Size | A | C | A | C | A | C | A | C | A | C | A | C | A | C | A | C | A | C |
| 3 | 2 7/8 | 2.906 | 3 7/32 | 2.900 | 3 3/8 | 2.906 | 3 5/8 | 2.900 | 4 1/8 | 2.900 | 4 9/16 | 2.900 | 5 | 2.900 | 5 7/8 | 2.900 | 6 1/16 | 2.900 |
| 3 1/2 | 3 1/8 | 3.359 | 3 1/4 | 3.359 | 3 7/16 | 3 359 | 3 3/4 | 3.359 | 4 3/16 | 3.359 | 4 5/8 | 3.359 | 5 1/16 | 3.359 | 6 | 3.359 | 6 5/16 | 3.359 |
| 4 | 3 5/16 | 3.843 | 3 3/8 | 3.826 | 3 1/2 | 3.828 | 3 7/8 | 3.826 | 4 3/4 | 3.826 | 4 3/4 | 3.826 | 5 3/16 | 3.826 | 6 1/8 | 3.826 | 6 9/16 | 3.826 |
| 5 | 3 3/4 | 4.812 | 3 3/4 | 4.812 | 4 | 4.812 | 4 1/4 | 4.812 | 4 3/4 | 4.812 | 5 1/4 | 4.812 | 5 3/4 | 4.812 | 6 5/8 | 4.812 | 7 3/16 | 4.812 |
| 6 | 4 1/8 | 5.750 | 4 11/32 | 5.761 | 4 1/2 | 5.760 | 4 11/16 | 5.760 | 5 1/4 | 5.760 | 5 3/4 | 5.760 | 6 1/4 | 5.760 | 7 1/4 | 5.760 | 7 13/16 | 5.760 |
| 8 | 4 3/16 | 7.625 | 4 5/8 | 7.625 | 4 7/8 | 7.625 | 5 5/32 | 7.625 | 5 3/4 | 7.625 | 6 11/32 | 7.625 | 6 15/16 | 7.625 | 8 3/32 | 7.625 | 8 11/16 | 7.625 |
| 10 | 4 1/4 | 9.750 | 4 27/32 | 9.750 | 5 | 9.562 | 5 5/16 | 9.562 | 5 15/16 | 9.562 | 6 9/16 | 9.562 | 7 3/16 | 9.562 | 8 7/16 | 9.562 | 9 1/16 | 9.562 |
| 12 | 4 3/8 | 11.750 | 5 3/32 | 11.750 | 5 3/8 | 11.375 | 5 11/16 | 11.375 | 6 5/16 | 11.375 | 6 15/16 | 11.375 | 7 9/16 | 11.375 | 8 13/16 | 11.375 | 9 7/16 | 11.375 |
| 14 | 4 1/2 | 13 | 5 1/4 | 13 | 5 1/2 | 12.500 | 5 13/16 | 12.500 | 6 5/16 | 12.500 | 6 15/16 | 12.500 | 7 9/16 | 12.500 | 8 13/16 | 12.500 | 9 7/16 | 12.500 |
| 16 | 4 11/16 | 15 | 5 7/8 | 15 | 6 | 14.312 | 6 7/16 | 14.310 | 6 5/8 | 14.310 | 7 1/4 | 14.310 | 7 7/8 | 14.310 | 9 1/8 | 14.310 | 9 3/4 | 14.310 |
| 18 | 5 1/8 | 17 | 6 1/2 | 17 | 6 1/2 | 16.125 | 6 1/2 | 16.126 | 6 13/16 | 16.126 | 7 7/16 | 16.126 | 8 7/32 | 16.126 | 9 13/32 | 16.126 | 10 1/32 | 16.126 |
| 20 | 5 5/8 | 19 | 6 3/4 | 19 | 7 | 17.937 | 7 9/16 | 17.938 | 7 25/32 | 17.938 | 8 3/32 | 17.938 | 8 21/32 | 17.938 | 9 29/32 | 17.938 | 10 15/32 | 17.938 |
| 24 | 6 1/2 | 23 | 7 5/8 | 23 | 8 | 21.564 | 8 23/32 | 21.564 | 8 31/32 | 21.564 | 9 13/16 | 21.568 | 10 1/2 | 21.568 | 12 9/16 | 21.564 | 10 21/32 | 21.564 |
WELDOLET RUN SIZES COMBINATIONS
Weldolet Size Sch. STD/XS
| Pipe Run Sizes |
Branch Pipe Size (inches) | ||||||||||||||
| 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | |
| 3/8 | 3/8 | 1/2 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | |
| 1/2 | 1/2 | 1-3/4 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | |
| 1-3/4 | 1-3/4 | 21/2-11/4 | 1 | 1 1/2 – 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 5 | 6 | 8 | 10 | |
| 2 1/2 – 1 1/4 | 21/2-11/4 | 36-3 | 1 1/2 – 1 1/4 | 2 1/2 – 2 | 2 | 2 1/2 | 3 | 4 – 3 1/2 | 4 | 5 | 6 | 8 | 10 | 14-12 | |
| 36-3 | 36-3 | flat | 2 1/2 – 2 | 5-3 | 2 1/2 | 3 1/2 – 3 | 4 – 3 1/2 | 5 | 5 | 6 | 8 | 10 | 12 | 16 | |
| flat | flat | 8-3 | 12-6 | 3 1/2 – 3 | 5-4 | 6-5 | 6 | 6 | 8 | 10 | 14-12 | 14 | 18 | ||
| 36-10 | 36-14 | 5 – 4 | 8-6 | 12-8 | 10-8 | 8 | 10 | 14-12 | 20-16 | 18-16 | 22-20 | ||||
| flat | flat | 10 – 6 | 18-10 | 24-14 | 18-12 | 12-10 | 14-12 | 20-16 | 22 | 22-20 | 28-24 | ||||
| 3/4 – 1/2 | 36 – 12 | 36-20 | 36-26 | 36-20 | 18-14 | 20-16 | 36-24 | 36-24 | 28-24 | 36-30 | |||||
| 36 – 1 | flat | flat | flat | flat | 36-20 | 36-24 | flat | flat | 36-30 | flat | |||||
| flat | flat | flat | flat | ||||||||||||
| Outlet sizes 8, 10, 12, 14, 16. 18, 24, 26. 20 order to specific size combination. | Size consolidation for Weldolets only | ||||||||||||||
Weldolet Size Sch. XXS/160
| Pipe Run Sizes |
Branch Pipe Size (inches) | ||||||||
| 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 | |
| 1/2 | 1 3/4 | 1 | 1 1/2 – 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 | |
| 1 1/4 – 3/4 | 2 – 1 1/4 | 2 1/2 -1 1/4 | 2 1/2 -2 | 2 1/2 – 2 | 2 1/2 | 3 | 3 1/2 | 6 | |
| 36 – 1 1/2 | 6 – 2 1/2 | 10-3 | 10-3 | 3 1/2 -3 | 3 1/2 -3 | 3 1/2 | 4 | 8 | |
| flat | 36-8 | 36-12 | 36-12 | 8-4 | 5-4 | 4 | 5 | 10 | |
| flat | flat | flat | 20-10 | 8-6 | 5 | 6 | 12 | ||
| 22 | 18-10 | 8-6 | 8 | 14 | |||||
| 36-24 | 36-20 | 12-10 | 10 | 16 | |||||
| flat | flat | 18-14 | 12 | 18 | |||||
| 36-20 | 14 | 20 | |||||||
| flat | 16 | 22 | |||||||
| 18 | 24 | ||||||||
| 20 | |||||||||
| 22 | |||||||||
| 24 | |||||||||
| flat | |||||||||
(Source: Bonney Forge)
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