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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.


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Butt Welding Weldolet-Butt Weld Pipe Fittings


Stainless Steel Butt Welding Weldolet

Stainless Steel Butt Welding Weldolet

Weldolet is the most common of all branch connections, and is welded onto the outlet pipe. The ends are bevelled to facilitate this process, and therefore the weldolet is considered a butt-weld fitting. Weldolet’s are designed to minimize stress concentrations and provide integral reinforcement.

What is a Branch Connection Fitting ?

Branch connections are not just tee’s and lateral’s (lateral pipe fitting tee), they are also weldolets. Weldolets are welded branch connections that are designed to match or exceed the schedule of the pipe used. Each is marked with an outlet size and the pipe sizes that it can be welded to. If stamped 5-3×3/4″ it will have an outlet size of 3/4″ and fit pipe sizes 3″, 3 1/2″, 4″, 5″ and having a maximum gap between the pipe and olet of 1/32″ for the largest size. Whatever your pipe size, an olet can be found to do the job. 4 inch and smaller are designed to fit numerous sizes of pipe, 5 inches and larger are designed for each specific size of pipe. A flat base is available for connecting to pipe caps and vessel heads.

Weldolet makes a 90° branch connection and comes in full size or reducing for a straight piece of pipe. A weldolet is designated by the run length by the branch length. For example a 6-inch weldolet on a 10-inch pipe would be a 10×6 Weldolet. A weldolet is designed to minimize stress concentrations and provide integral reinforcement without the need for reinforcing the weld.

Butt Welding Weldolet Welded With Pipes

Butt Welding Weldolet Welded With Pipes

Weldolet STD Sch Dimensions Weldolet XS Sch Dimensions
NPS A B C D A B C D
1/2″ 19.05 34.93 23.81 15.88 19.05 34.93 23.81 15.88
3/4″ 22.23 41.28 30.16 20.64 22.23 41.28 30.16 20.64
1″ 26.99 50.8 36.51 26.19 26.99 50.8 36.51 26.19
1 1/4″ 31.75 60.3 44.45 34.93 31.75 61.91 44.45 34.93
1 1/2″ 33.34 73 50.8 41.28 33.34 73 50.8 41.28
2″ 38.1 88.9 65.09 52.39 38.1 88.9 65.09 52.39
2 1/2″ 41.28 103.19 76.2 61.91 41.28 103.19 76.2 61.91
3″ 44.45 122.24 93.66 77.79 44.45 122.24 93.66 77.79
3 1/2″ 50.8 136.53 98.43 90.49 50.8 136.53 98.43 90.49
4″ 50.8 152.4 120.65 101.6 50.8 152.4 120.65 101.6
5″ 57.15 180.98 141.29 128.59 57.15 180.98 141.29 128.59
6″ 60.3 215.9 169.86 153.99 77.79 225.43 169.86 153.99
8″ 69.85 263.53 220.66 201.61 98.43 269.88 220.66 193.68
10″ 77.79 319.09 274.64 254 88.9 327.03 265.11 254
12″ 85.73 377.83 325.44 304.8 100.01 385.76 330.2 304.8
14″ 88.9 409.58 357.19 336.55 104.78 423.86 363.54 330.2
16″ 93.66 463.55 407.99 387.35 112.71 479.43 419.1 381
18″ 103.19 527.05 473.08 438.15 119.06 536.58 473.08 431.8
20″ 117.48 585.79 509.59 488.95 127 593.73 528.64 482.6
24″ 136.53 708.03 638.18 590.55 139.7 708.03 638.18 584.2

Butt weld Pipe Fittings – Butt Welding Weldolet

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Related Tags: Butt Weld Pipe Fittings (46)  Butt Welding Weldolet (1)  Olet (6)  

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