What does flange WN80 (B) -40M mean?
WN represents the flange type "neck flange"; 80 represents the nominal diameter is 80mm; (B) on behalf of the flange and pipe welding end diameter is B series (domestic use series, 89mm), representing 40 of the nominal pressure is 40bar; M represents the seal type is convex.
WN butt welding flange 80 nominal diameter B series diameter 89, in fact, AB are 8940 diameter, 40 kg pressureM indicates that the sealing surface is convex
WN represents the flange type "neck flange"; 80 represents the nominal diameter is 80mm; (B) on behalf of the flange and pipe welding end diameter is B series (domestic use series, 89mm), representing 40 of the nominal pressure is 40bar; M represents the sealing surface is convex.
