Introduction to Socket Weld Flanged Fittings

Sleeve and groove flanges with neck are divided according to the sealing surface. Sleeve and groove flanges typically consist of one sleeve and groove face and one groove face, used together as a matched pair of flanges.

The difference between tenon and groove flange and concave and convex flange is that the concave and convex flange is composed of tenon and groove surfaces, while the tenon and groove flange consists of a tenon and groove surface along with a single groove surface.

Features of颈带榫槽面焊接法兰

Due to its sealing face principle, the tenon and groove face gasket is not extruded in the groove. As the gasket does not come into direct contact with the medium, the effects of medium corrosion and the penetration of pressure mechanisms are minimized. It is suitable for high-pressure, flammable, explosive, and toxic medium sealing applications with strict requirements.

Specification Model

DN15-DN4000

Pressure Rating

PN2.5;PN6;PN10;PN16;PN25;PN40;PN63;PN100;PN160;PN250;PN320;PN400;

Flange Material

Carbon Steel Flanges: ASTM A105, 20#, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70

Stainless Steel Flanges: ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8

Alloy Steel Flanges: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8/Ⅲ

Soldered flange connection with tenon and mortise and neck

First, place the gasket in the groove, match the two tenon-groove flanges, secure with bolts, and then weld the neck to the pipe.

Procurement Recommendations

Purchase from a reputable颈对焊法兰 manufacturer with a certain scale of production.

2: manufacturers of flanges need to provide material inspection reports and related documents for necked butt-weld flanges.

3:颈对焊法兰 must have corresponding specification and model steel stamping and identification.