API/ASME/JIS/EN/GOST Stainless Steel Weld Neck Flanges

API/ASME/JIS/EN/GOST Stainless Steel Weld Neck Flanges

A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal. Slip on flange also named as SO flange. SO flanges slip over pipes and are designed to bit slightly bigger on the inside than the pipe. They connect to the pipe through a fillet weld at the flange top and bottom. It is used to insert the pipe into the inner hole of flange, as the flange inner diameter is little bigger than the pipe’s outer diameter, pipe and flange could be connected by lap welding at the top and bottom of the flange.

Stainless Steel Weld Neck Flanges Specifications:

1. Size: 1/2’’~120’’(DN15~DN3000)

2. Pressure: 0.6Mpa ～32Mpa、150Lb ～2500Lb、PN0.25-PN42.0

3. Material: ASTM A105, ASTM A350 LF1, LF2, CL1/CL2,16MN,20#, ASTM A182, F304/304L, F316/316L,F321,F310,F316Ti, ASTM A182 A182 F12,F11,F22,F91,F51,F53,F55,F60,F44,etc.

4. Standard: ANSI B16.5, ANSI B16.47, AWWA, JIS B2220, EN1092-1, DIN 2573/2576, DIN2543/2544, DIN2527, BS4504, GOST 12820-80, GOST 12820-81, SABS1123, etc.

5. Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160. SCHXXS.

Type of Stainless Steel Flange:

1. Weld Neck Flange

2. Slip on Flange

3. Socket Weld Flange

4. LAP Joint Flange

5. Threaded Flange

6. Blind Flange