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SO flange
SO flange
SO flange full name with neck flat welded steel pipe flange, also known as neck flat welded flange.
So flange, like plate flat welding flange, is also a flange that extends steel pipe and pipe fittings into the flange and connects with equipment or pipes through fillet welds. Because it has a short neck, it increases the strength of the flange and improves the bearing force of the flange. So it can be used for higher pressure pipes. Compared with plate flat welding flange, the cost is higher.
Common criteria are: GB/T 9116-2010 flat-welded steel pipe flanges with neck, HG/T20592~20635-2009 Medium PN series (European system), HG/T20592~20635-2009 Medium Class Series (American system), ANSI B16.5, etc., Customized production according to customer requirements.
The sealing surface form with neck flat welding flange is :; Convex surface (RF), concave surface (FM), convex surface (M), tenon surface (T), groove surface (G), full plane (FF). The diameter range of flat welding flange with neck :DN10~DN600. Commonly used materials: ASTM A105 Q235B 20# 16Mn Q345B SS304 SS316L 12Cr1MoV 15CrMo SS304 SS316L etc.
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Cangzhou Hengjia Pipeline Co., Ltd.
Cangzhou Hengjia Pipeline Co., Ltd. located in “Chinese Pipeline Equipment Manufacturing Base”-Yanshan County of Hebei Province is a sales company of Hebei Longrun Pipeline Group Co., Ltd.
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