An overview of the American Petroleum Institute - API - valve standardsAPI SPEC 6DSpecification for Pipeline Valves. API Specification 6D is an adoption of ISO 14313: 1999, Petroleum and Natural Gas I..2012-12-27
An overview of ASTM International - American Society for Testing and Materials - valve standardsASTM A126-04Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe FittingsASTM A18..2012-12-27
Ball valves in the piping are used to cut, distribute and change the flow direction of the fluid. If the opening were designed to be V-shaped, it would also have the excellent function of flow control..2012-12-27
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