ASME/ANSI B16.5 Class 150 TH

Pipe flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system.

It also provides easy access for cleaning, inspection or modification.

Threaded (Screwed) flange is similar to the Slip-On flange, but the bore is threaded. Its chief merit is that it can be assembled withour welding, explaining its use in low pressure services at ordinary atmospheric temperatures, and in highly explosive areas where welding create a hazard.

Nominal Pipe Size Outside Diameter of FlangeDiameter of Raised FaceThickness of Flanges Min.Diameter of HubLength Through HubThread Length Threaded Min.BoreDiameter of Bolt CircleDiameter of Bolt HolesNumber of BoltsApproximate Weight kgs
NPSORtfXYTBWIn 
1/29034.99.630141622.260.315.940.41
3/410042.911.238141627.769.915.940.59
111050.812.749161734.579.415.940.82
1 1/411563.514.359192143.288.915.940.99
1 1/212573.015.965212249.598.415.941.28
215092.117.578242561.9120.719.142.01
2 1/2180104.820.790272974.6139.719.143.41
3190127.022.3108293090.7152.419.143.88
3 1/2215139.722.31223032103.4177.819.184.80
4230157.222.31353233116.1190.519.185.45
5255185.722.31643536143.8215.922.286.22
6280215.923.91923840170.7241.322.287.57
8345269.927.02464344221.5298.522.2812.42
10405323.828.63054849276.2362.025.41216.47
12485381.030.23655456327.0431.825.41226.80
14535412.833.44005657359.2476.328.61235.21
16595469.935.04576264410.5539.828.61644.61
18635533.438.15056768461.8577.931.81649.19
20700584.241.35597173513.1635.031.82062.62
24815692.246.16638183616.0749.334.92088.23

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