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BS Flange

BS Flange is flange with Dimensions as per BS 4504 or BS10:1962 British Standard, BS 4504 material standard Specification for Flanges and Bolting for Pipes, Valves, and Fittings. Standard BS 4504 flange dimensions from PN6, PN10, PN25 and PN40.

BS Flange VS ASME Flange

1. Material (similarity):

Both BS flange and ASME flange material can be carbon steel, stainless steel and other alloy steel.

2. Design pressure (difference):

About BS flange, the pressure is PN2.5, PN6, PN10, PN16, PN25, PN40. Regarding the ASME flange, the pressure is 150LBS, 300LBS, 400LBS, 600LBS, 900LBS

3. Type (similarity):

Slip on, Weld Neck, Plate, Blind, Socket Weld, Thread, Lap Joint.

4. Installation (similarity and difference):

Same connection,due to OD of British standard is different from that of the American standard, and the BS flange connection size is different. Before connection, check the applicable standard of the pipe and select the appropriate flange for connection.

BS Flange FAQs

Q 1. What's the function of BS flanges?

BS Flanges are used to connect valves, pipes, and other equipments in the piping system. Usually, BS flanges are welded or threaded, and two flanges are connected together by bolting them with gaskets to provide a seal.

Q 2. Can we supply special flanges?

If clients require non-standard flanges, as one of the flange manufacturers, we can manufacture or modify products to meet specific customer needs.

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