Enviromental protection requires valve to be low-leakage( Fugitive Emission Valve)

Valve in the use of the process , environmental impact is an important indicator of the performance of the valve.  low valve leakage is an important parameter to evaluate the environmental protection performance. Valve low leakage requirements have become the basic requirements of the valve design and manufacturing. Usually means  Fugitive Emission Requirment for valve.
In 2015, for the first time, API600 standards which was widely used in the valve industry , the valve low leakage test requirements API624 been joined the standard text. China National Standard (GB) hydrotreating device with the valve standard has also been clearly required in accordance with ISO15848 low leakage detection.

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