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Socket Welding Flange (SW)

What Is A Socket welding flange (SW)?

A socket weld flange is a type of pipe flange designed for small-diameter, high-pressure piping systems. It has a recessed area where the pipe is inserted, then secured with a fillet weld around the outer edge. This design ensures a strong, leak-proof connection and allows for smooth fluid flow.

If you’re looking for reliable solutions, China socket weld flange manufacturers offer durable and cost-effective options. Whether for industrial, chemical, or power applications, socket weld flanges are a practical choice for secure pipe connections.

The product specification
1.NPS:DN15-DN2000,1/2″-80″
2.Pressure Rating:Class150-Class2500,PN10-PN160
3.Material:
①Stainless Steel: 31254, 904/L, 347/H, 317/L, 310S, 309, 316Ti, 321/H, 304/L, 304H, 316/L, 316H
②DP Steel: UNS S31803, S32205, S32750, S32760
③Alloy steel: N04400, N08800, N08810, N08811, N08825, N08020, N08031, N06600, N06625, N08926, N08031, N10276

Product Introduction

One of the main advantages of using flanges is their ability to create a detachable sealed connection. Unlike welded joints, flanged connections can be easily disassembled for routine maintenance, cleaning, or replacement of components. This feature not only enhances the flexibility of the piping system but also reduces downtime and maintenance costs in industrial operations.

 

Product Parameters

NPS DN15-DN2000,1/2″-80″
Pressure Rating Class150-Class2500,PN10-PN160
Material ①Stainless Steel: 31254, 904/L, 347/H, 317/L, 310S, 309, 316Ti, 321/H, 304/L, 304H, 316/L, 316H

②DP Steel: UNS S31803, S32205, S32750, S32760

③Alloy steel: N04400, N08800, N08810, N08811, N08825, N08020, N08031, N06600, N06625, N08926, N08031, N10276

 

Core Technology

Oil & Gas Transmission Pipelines: High-pressure natural gas pipelines use A105 steel welded flanges and 316L stainless steel bolted flanges to resist hydrogen sulfide corrosion. In the West-East Gas Pipeline Project, X80 steel pipelines adopt Class 600 flanges with a safety factor of 2.5 times.