API 6D Inverted Pressure Balancing Plug Valve Supplier: Inverted Pressure Balanced Plug Valves, 2-6 Inch, WCB, WC6, WC9, CF8, CF8M, CL150, CL300, CL600.
API 599 Lubricated Plug Valve Provider: Lubricated Plug Valves, 2-12 Inch, DN50-DN300, 150-1500 LB, PN20-PN250, RF, RTJ, BW, CS, SS, DSS, AS, API 599.