WELDOLET DIMENSION AND WEIGHT


Weldolets are forged products used to branch a run pipe at 90 degrees (the pipe and the fittings are welded with a butt weld connection). Weldolets are used for critical and high-pressure as an alternative to butt weld tees. Weldolets are available both in the full size and reduced-size configuration (in case the inlet and the outlet have different bore sizes). Flat-based Weldolets are also available to connect to pipe caps and vessel heads. In this article, we report the dimensions of Weldolets (pipe center to Weldolet face and weights and sizes for size-on-size and reducing types) by NPS and schedule of the run pipe and Olet’s size.


WELDOLET DIMENSION: CENTER OF RUN TO FACE

Weldolet center od run to face dimensionForged weldolet

The distance between the run pipe center line and the Weldolet top-bore (by pipe NPS/Schedule and Weldolet size):

HEADER PIPE WEIGHT

WELDOLET SIZE

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 DIMENSIONS AND WEIGHTS

SCHEDULE 40 WELDOLET (SIZE ON SIZE)

Weldolet size on size dimensions

Weldolet Size (NPS) 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

SCHEDULE XS WELDOLET (SIZE ON SIZE)

Weldolet size on size dimensions

Weldolet Size (NPS) 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

SCHEDULE 160/XXS WELDOLET (SIZE ON SIZE)

Weldolet size on size dimensions

 

Dimensions
Weldolet Size in
Inches
A B C Approx. Weldolet Weight in
Pounds
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 DIMENSIONS AND WEIGHTS

SCHEDULE 40 WELDOLET (REDUCING)

Weldolet size on size dimensions

Dimensions
Weldolet Size
Inches
A B C Approx. Weldolet Weight
in Pounds
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

SCHEDULE XS WELDOLET (REDUCING)

Dimensions
Weldolet Size
Inches
A B C Approx. Weldolet Weight
in Pounds
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

SCHEDULE 160/XXS WELDOLET (REDUCING)

Dimensions
Weldolet Size
Inches
A B C Approx. Weldolet Weight
in Pounds
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

WELDOLETS WITH HEAVY WALL THICKNESS DIMENSIONS

heavy WT weldolets

WT of Run Pipe 3/4 1 1 1/4 1 1/2 1 3/4 2 2 1/4 2 3/4 3
Run Pipe 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

WELDOLETS SCHEDULE STD/XS

Run Sizes Outlet 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

WELDOLETS SCHEDULE XXS/160

Run Sizes Outlet 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)