Trunnion Mounted Ball Valves

The ball is mounted on trunnion supported in body bearings above or below the ball. The sealing is realized by spring loaded piston type seat which shut off flow when line pressure is exerted on the upstream seat. The design provides automatic relief of cavity overpressure. Trunnion mounted ball valve is available in seizes above "2” and is generally used for higher pressure. Trunnion mounted ball valve can be closed quickly and thus there is a danger of water hammer. Trunnion ball valve is widely applied in chemical engineering, petroleum, gas, metallurgy and the long-distance pipe containing hydrogen sulfide, impurities and media having strong corrosion. 

Durlmark Valve provides trunnion mounted ball valves having different specifications: API/BS/EN/JIS, PTFE Seated, Forged Steel/Carbon Steel/Stainless Steel, 3-PC. Other specifications are also available. Please feel free to contact us: info@durlmark.com.

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  1. A105N Trunnion Mounted Ball Valves, 3IN, CL2500

    Model No.: LV 15 TBV 28
    China Trunnion Mounted Ball Valve Manufacturer: ASTM A105N Trunnion Mounted BallL Valve, API 6D, 3IN, CL2500 LB, RTJ Ends, SS316 Trim.
  2. A350 LF2 Trunnion Ball Valves, 8IN, 1500#, RF

    Model No.: LV 15 TBV 27
    China A350 LF2 Ball Valve Manufacturer: Trunnion Mounted Ball Valve, ASTM A350 LF2, 1500 LB, 8 Inch, Flanged RF, Reduced Bore, Gear, 17-4PH Stem.
  3. 2 PC Ball Valve, A216 WCB, 3 Inch, 150 LB

    Model No.: LV 15 TBV 26
    China 2 PC Ball Valve Manufacturer: Carbon Steel 2 PC Ball Valves, ASTM A216 WCB, 3 Inch, 150 LB, API 6D, Flanged RF Ends, Trim 1#, Blue Painting.
  4. Trunnion Mounted Ball Valves, 16 Inch, 3-PCS

    Model No.: LV 15 TBV 25
    China Trunnion Mounted Ball Valve Manufacturer: ASTM A105 Trunnion Mounted Ball Valves, 3-PCS, 16 Inch, 600 LB, Flanged RF Ends, ASTM A182 F6A Stem.
  5. Trunnion Mounted Ball Valves, 2-PC, API 6D

    Model No.: LV 14 TBV 24
    China Trunnion Mounted Ball Valve Manufacturer: 2-PC Trunnion Mounted Ball Valve, API 6D, 10 Inch, CL300, RF, ASTM A216 WCB, Full Bore, Gear Operated.
  6. Forged Ball Valves, API 6FA, PN150, DN750

    Model No.: LV 14 TBV 23
    China Forged Ball Valve Manufacturer: API 6FA Trunnion Mounted Ball Valves, Nylon Seated, 900LB (PN150), 30 Inch (DN750), Flanged Ends, ASTM A350 LF2.
  7. Nylon Seated Full Bore Ball Valves, DN750, Gear Op

    Model No.: LV 14 TBV 22
    China Nylon Seated Full Bore Ball Valve: Trunnion Mounted Ball Valves, 30 Inch (DN750), Gear Operated, 600LB, Forged Steel A105, API 6D, Flanged Ends.
  8. WCB Pig Ball Valves, ASTM A216, 10 Inch, 300#

    Model No.: LV 14 TBV 21
    China WCB Pig Ball Valve Manufacturer: WCB Trunnion Mounted Ball Valves, ASTM A216, 10 Inch (DN250), 300LB (PN50), ASTM A105 ENP Ball, PTFE Seal.
  9. Flanged RF Forged Ball Valves, DN400, 3-PC Body

    Model No.: LV 14 TBV 20
    China Flanged RF Forged Ball Valve: Flanged RF Trunnion Mounted Ball Valves, 16 Inch (DN400), Three Piece Body, 600LB (PN100), API 6D, ASTM A105.
  10. RFTFE Seated Trunnion Ball Valves, 8 Inch, BW

     Model No.: LV 14 TBV 19
    China RFTFE Seated Trunnion Ball Valve: RFTFE Seated Trunnion Ball Valves, 8 Inch, Butt Weld End, ASTM A216 WCB, Gear Operator, 300LB, SS304 Ball.
  11. Bolted Body Forged Ball Valves, API 6D, RTJ

    Model No.: LV 14 TBV 18
    China Bolted Body Forged Ball Valve: API 6D Trunnion Mounted Ball Valves, Flanged RTJ, 3-PC, Class 900, ASTM A105, 8 Inch (DN200), Gear Operated.
  12. F51-UNS S31803 Ball Valves, Full Bore, BS 5351

    Model No.: LV 14 TBV 17
    China F51-UNS S31803 Ball Valve: Full Bore Trunnion Mounted Ball Valves, ASTM A182 F51-UNS S31803, Peek Seated, Socket Welding, BS 5351, DN15, 1500LB.

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