Welding Neck Flange

Welding neck flange

It is a type of tube fittings and it is refers to a flange with a neck that has a transition of a round pipe, welding neck flange connect with pipe for butt welded . meanwhile, Butt welding flange is not easy to be deformed, sealed, it is widely used for construction,it has rigidity and elasticity requirements and reasonable butt welding thinning transition, the welding joint be away from  the joint surface, in addition, the joint surface be free from welding temperature deformation.

Specification:

Size: From 75mm to 2190mm

Pressure:

For PN remark:PN2.5;PN6;PN10;PN16;PN25;PN40;PN63;PN100;PN160;PN250;PN320;PN400

For class remark:Class 150;Class 300;Class 600;Class 900;Class 1500;Class 2500

Type:Butt welding           Sealing type:  RF、MFM、TG、RJ、FF

Connection type: Weld type welding type flange or thread type welding type flange

Standards: ANSI B16.5、ASME B16.47 Series A、ASME 16.47 Series B、BS 4504、BS3293

Material:

Carbon Steel：ASTM A105、20#、Q235、Q235B

Stainless Steel： ASTM A182 F304、304L、 F316、316L

Surface treatment: Black paint, Galvanized, Electric galvanized, anti corrosion coating or vanished

Package:

Flange packed with individual package then packed with wooden carton or paper carton, and put in one pallet.

The advantage of welding neck flange

The sealing performance is better than that of the Slip on welding flange.,and it can applied in high temperature and pressure work situation,so it Suitable for applied in where pressure, temperature is high or where sealing is required. it widely used in Boiler pressure vessel, petroleum, chemical, shipbuilding, pharmaceutical, metallurgy, machinery, stamping elbow food and other industries

Disadvantage

It needs to be manufactured with forgings, which consumes a lot of materials and has a large manufacturing cost. 

If you have any inquiry ,please Email to:briway@screenpipes.com