Regarding the issue of installing a safety valve behind the pressure reducing valve

2019-03-29View Original

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A pressure reducing valve has been installed on the steam pressure pipeline. Today, an expert came to inspect and said that a safety valve must be installed behind the pressure reducing valve. I can understand this, but I would like to know if there are any standards or regulations that stipulate that a safety valve must be installed.

Reply #22019-03-29

HG/T20570.2 contains safety valve setting specifications. I didn’t download the specific standards, so I took a screenshot.

Reply #32019-03-29

Thank you, I just found this standard too

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Regarding the issue of installing a safety valve behind the pressure reducing valve

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