ASME/ANSI B16.5 Class 900 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.

Nominal Pipe Size Outside Diameter of FlangeDiameter of Raised FaceThickness of Flanges Min.Diameter of HubLength Through HubThread Length Threaded Min.BoreCounter-bore Threaded Flange, Min.,Diameter of Bolt CircleDiameter of Bolt HolesNumber of BoltsApproxi-mate Weight kgs
NPSORtfXYTBQWIn 
1/212034.922.338322322.223.682.622.241.73
3/413042.925.444352627.729.088.922.242.33
115050.828.652412934.535.8101.625.443.48
1 1/416063.528.664413143.244.4111.125.444.00
1 1/218073.031.870443249.550.3123.828.645.54
221592.138.1105573961.963.5165.125.489.79
2 1/2245104.841.3124644874.676.2190.528.6813.82
3240127.038.1127544290.792.2190.525.4811.51
4290157.244.51597048116.1117.6235.031.8819.52
5350185.750.81907954143.8144.4279.434.9832.14
6380215.955.62358658170.7171.4317.531.81241.04
8470269.963.529810264221.5222.2393.738.11270.97
10545323.869.936810872276.2276.2469.938.116100.32
12610381.079.441911777327.0328.6533.438.120133.26
14640412.885.845113083359.2360.4558.841.320152.57
16705469.988.950813386410.5411.2616.044.520185.15
18785533.4101.656515289461.8462.0685.850.820256.28
20855584.2108.062215993513.1512.8749.354.020315.13
241040692.2139.7749203102616.0614.4901.766.720603.79

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