Valve hydraulic test
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The pipeline installation of my methanol company has started, and the valves need to be pressure tested for leaks. Is there any relevant standard? Please give me some advice. Thank you very much! ! ! ! !
GB/T13927-2008 http://www.414311.cn/BBS/frame.php?frameon=yes&referer=http%3A//www.414311.cn/BBS/thread-5164-1-1.html
American standards generally use API598, the water pressure is generally 1.1 times the nominal pressure, and the air pressure is generally 0.6MPa.
There is GB50235-97, the strength test pressure is 1.5 times the nominal pressure, and the tightness test is 1.0 times the nominal pressure.
GB/T13927-2008 http://bbs.hcbbs.com/thread-421782-1-1.html
It is best to check against the design drawings to see what specifications and standards are implemented. Key valves need to be supervised on site, because the quality of domestic valves varies greatly. In order to be responsible for the project, you are also responsible for yourself, so don't be lazy.