SO flange

SO flange full name with neck flat welding steel pipe flange, also known as with neck flat welding flange.

Classification:

Steel flange

Key words:

Hengjia Pipeline

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Product Details

SO flange full name with neck flat welding steel pipe flange, also known as with neck flat welding flange.
The So flange is the same as the plate flat welding flange, which is also the flange that extends the steel pipe, pipe fitting, etc. into the flange and connects the equipment or pipeline through the fillet weld. Because there is a short neck, so as to improve the strength of the flange to improve the bearing capacity of the flange. So it can be used for higher pressure pipes. Compared with plate flat welding flange, the cost is higher.
Common standards are: GB/T 9116-2010 flat welded steel pipe flange with neck, PN series (European system) in HG/T20592 ~ 20635-2009, Class series (American system) in HG/T20592 ~ 20635-2009, ANSI B16.5, etc., which can be customized according to customer requirements.
The sealing surface forms of flat welding flange with neck are: raised surface (RF), concave surface (FM), convex surface (M), tenon surface (T), groove surface (G) and full plane (FF). Diameter range of flat welding flange with neck: DN10 ~ DN600. Common material: ASTM A105 Q235B 20# 16Mn Q345B SS304 SS316L 12Cr1MoV 15CrMo SS304 SS316L, etc.


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