*'Chemical valve' (http://www.corrosion-resistant-valves.com)* seat leakage test is performed at the maximum rated pressure. This is a hydrostatic test with the acceptance criteria: drop tight for two minutes. *'Chemical valve' (http://www.corrosion-resistant-valves.com)* has an extensive Quality Control Program that is strictly followed for each valve. For all of our products, copies of these documents can be furnished upon request.website:www.corrosion-resistant-valves.com
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