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Question:

What do you mean by "RF", "A" or "B" in the flange?

What do you mean by "RF", "A" or "B" in the flange?

Answer:

A series and B series A commonly known as the British pipe flange B is commonly known as metric pipe flange, pay attention to the standard flange is different, flange is not the same
That is to say, the size of the outer diameter of the pipe
A is an international general (commonly known as imperial tube) steel pipe, caliber B is the national standard (commonly known as metric pipe), steel pipe caliberFor example, DN100 PN1.0 20#RF (B) is the path 10010 kg pressure 20# material, 108 caliber flange flange.The DN100 PN1.0 20#RF (A) is a 10010 gauge, pressure 20#, 114 gauge flange.

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