Socket weld fittings are pipe joints machined by round steel or steel ingots, the connection form is Socket Welding Flange, and the steel pipes are inserted into the socket to be welded.

The types of socket weld fittings include 45° elbow, 90° elbow, tee, cross, 45°oblique tee, double socket pipe hoop, single socket pipe hoop, pipe cap, union, branch pipe, etc. Among them, the three-way and the four-way have the equal diameter and the different diameter; the double-bearing pipe clamp also has the equal diameter and the different diameter, and the different-diameter double-end pipe clamp has the concentricity and the eccentricity.

The socket weld fitting series connection forms include socket welding connection (SW), butt welding connection (BW), threaded connection (TR), curved elastic double-melt socket connection.

Pressure Level:

The socket fittings are subjected to pressure grades. Generally, the pressure grades of the socket welding and butt welding joints are classified into 3000LB (SCH80), 6000LB (SCH160), and 9000 (XXS). The pressure rating of the pipe fittings is divided into 2000LB, 3000LB and 6000LB. Quartet double melting low-pressure pipe fittings nominal pressure: PN2.5MPa

Pipe fitting manufacturing standards refer to: CJ/T 321-2010, ASME B16.11, HG/T 21634-1996, MSS SP-83, MSS SP-79, MSS SP-97, MSS SP-95, GB/T 14383-2008 , SH/T3410-96, GD2000, GD87, 40T025-2005, etc., can also be produced according to the drawings for non-standard processing.

Common materials for socket fittings:

#1 Commonly used raw materials for socket pipe fittings are generally divided into carbon steel, stainless steel, alloy steel, polypropylene ppr and so on.

#2 Commonly used carbon steel grades are Q235, 20#, A105, etc.;

#3 Commonly used grades of stainless steel are 304, 304L, 316, 316L, 321, 00Cr17Ni14Mo2, etc.;

#4 Commonly used alloy materials are 15CrMo, 1Cr5Mo, 16Mn, 12Cr1MoV, F11, F22, 10CrMo910, etc.

#5 Other materials: copper alloy, nickel alloy, etc.