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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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MSS SP-97 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.

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

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Related Tags: Butt Weld Pipe Fittings (46)  MSS SP-97 (4)  Olet (6)  

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