Bronze Gate, Globe, Angle and Check Valves. Pressure Testing Methods. Temperature Range, to Pressure, PSI, min. Gage pressure in pounds per square inch. The pressure surge that occurs whenever liquid flow is suddenly arrested as by the quick closure of the valve.
Shock can occur also whenever reciprocating pumps are used in liquid carrying lines.
All bronze gate valves shall be new, unused, and a currently standard products of an established manufacturer except for such deviations as may be required by this specification. Valves shall be free of all imperfections, defects, and hazards which might affect appearance, normal life, serviceability, or user safety. Valves shall be shipped complete, fully assembled, sealed, and ready for immediate unpacking and installation. Parts and components not specifically mentioned in this specification, but which are required to provide a complete operating valve or which are standard for the model bid, shall be included. Valves shall meet or exceed MSS SP-80 except when those requirements are in conflict with the requirements of this specification.