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Several standards for cast steel gate valves

Standard for test of cast steel gate valves: GB/T 13927-2008 name universal valve pressure test
Design standard for cast steel gate valves: GB/ t12234-2007 name: steel gate valves with stud caps for the petroleum and natural gas industry
Flange connection: JB/T 79-94 mechanical department flange standard, GB/T 9113-2000 national recommended flange standard, HG/T 20592-2009 chemical department flange
Structural length: gb12221-2005 name: structural length of metal valves
Nominal size of cast steel gate valve: DN15~DN1200mm
Nominal pressure of cast steel gate valve: PN10~PN320, 1.0mpa ~ 32.0mpa


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