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.

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.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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Sunny Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.
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Flanges General

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

Pipe fitting

Pipe fitting
Pipe fitting is work that involves the installation or repair of pipes or tubes. Pipes and tubes are necessary for a wide range of reasons.