Fully Welded Ball Valve price GZP Pipeline Ball Valves are manufactured to the latest edition of API 6D and tested to API 6D. Passed API 607 fire test standard for soft seal valves. All valves from GZP VALVE are strictly 100%tested before shipment to guarantee zero leakage. API Pipeline Ball valve are used for fluid regulation and control, usually used as an emergency cut-off, higher safety and...