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Slip On Flange (SO)

The product specification
The Slip On Flange (SO) is easy to install. It slides over the pipe and is welded for strength. Available in full sizes from DN15 to DN2000. We offer SS Slip On Flange and ANSI Slip On Flange with Class150–Class2500 and PN10–PN160 ratings. Ideal for low-pressure and general industrial use.
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

Pipe flanges are specifically designed for connecting one pipe to another, forming a continuous and sealed passage for the flow of liquids or gases. They are available in various types—such as slip-on, weld neck, and socket weld—depending on the system pressure, temperature, and fluid characteristics. Pipe flanges simplify installation and ensure structural integrity in both aboveground and underground piping networks.

 

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

Thermal Power Generation: Boiler and steam turbine pipelines require flanges resistant to high temperatures and pressures. Nuclear power plants use weld-neck flanges for main steam isolation valves.

Nuclear Power: Reactor cooling systems utilize Inconel alloy flanges, capable of withstanding 700°C and 250MPa pressure.