Flat flange

Flat flanges Compared with neck flanges, flat flanges can be divided into carbon steel flat flanges, stainless steel flat flanges alloy steel flat flanges according to their materials. The structure of the flange includes integral flange unit flange.

Flat flange standard system

1) Nominal pressure: 0.25Mpa ~ 42.0Mpa

a. Series 1: PN1.0, PN1.6, PN2.0, PN5.0, PN10.0, PN15.0, PN25.0, PN42 (main series)

b. Series 2: PN0.25, PN0.6, PN2.5, PN4.0

Among them, PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0 have 6 levels of flange dimensions, which belong to the European flange system represented by German flanges, the rest are US laws. The American flange system represented by Blue.