Naibang Tunnion mounted ball valve have double block and bleed function, but a floating type can’t. Trunnion ball valve could block the medium from both upstream and downstream, it’s totally bidirectional design. When the pressure in the valve cavity is higher than the pretightening force, it will push the seat move to relief the pressure, so to keep safe.
Naibang Valves has extensive experience in manufacturing Trunnion Mounted, Side & Top Entry Ball Valves, both Soft and Metal Seated.
Size: 2” up to 48“ (DN 50 up to DN 1200)
Pressure Rating: ASME 150# to 2500#, API 3000PSI to 20000PSI
Materials: Carbon Steels, Low Temperature Carbon Steel, Martensitic Steels, Austenitic Stainless Steel, Duplex Stainless Steels, Super Duplex Stainless Steels, Nickel
Design Standard: API 6D, API 608, MESC SPE 77 / 130 API6DSS, MESC SPE 77/210
Pressure / Temperature Rating: ASME B 16.34
Test (Inspection) Standard: API6DSS, API 598, API 6D, ISO 5208, MESC SPE 77/132, 77 / 300, 77/312, 77/200, 77/210, API 6FA, ISO 10497, API607, ISO 15848-1&2, BS6364
Construction Details: Single / Two / Three Piece Design / Side Entry / Trunnion / Block & Bleed / Soft and Metal Seated
End Connection: Screwed, Socket Weld, Flanged, Hub End, Butt-Weld
Operator / Actuator: Lever, Gear, Actuator (Pneumatic, Hydraulic, Electro-Hydraulic and Electric Motorized)
Special Design Feature also available:
» Cryogenic Design
» Subsea Design
» Stem Extension
» Single & Double Piston Seat Design
» Primary Metal and Secondary Soft Seat Design
» Emergency Seat and Stem Lubricant Injection
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of forged steel 3pc trunnion mounted ball valve with gear worm in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.
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