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How to distinguish between a flat welding flange b flange?

Dec 16, 2016

You may not know: flat welding flange can be divided into two forms of influenza type b flanges, flanges. 1) flange b with a short barrel, so rigid better than type a flanges can be used for high pressure, larger diameter;

2) weld form: v-Groove type a and type b, a u-shaped Groove, more vulnerable to penetration, so the higher strength and stiffness.

Pressure vessel flanges into flat welding flange and the flange. Flat welding flange type a flanges, flange b in two forms.

Graphic standards, as follows:

Flat welding flange

1) flange b with a short barrel, so rigid better than type a flanges can be used for high pressure, larger diameter;

2) weld form: v-Groove type a and type b, a u-shaped Groove, more vulnerable to penetration, so the higher strength and stiffness.

Welding neck flanges

Because of the long neck, and welded, rigid better for higher pressure