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Trunnion Ball Valve

Specification of Trunnion Ball Valve

ItemValue
Size Range2" – 52" (DN50-DN1300)
Pressure RangeCLASS 150-CLASS 2500 (PN16-PN420)
Valve TypeTrunnion Mounted, 2-piece Body, 3-piece Body
Port TypeFull Bore / Reduced Bore
End ConnectionFlanged RF, RTJ, FF, Butt Weld (BW), Socket Weld (SW), Threaded
Temperature Range-160 ℃ to 425 ℃
OperateLever, Gear, Pneumatic, Electric Actuator
ApplicationsOil & Gas, Petrochemical, Refinery, Pipeline, Power Plant, Chemical industry



Features of Trunnion Ball Valve

Trunnion ball valves are designed for high-pressure and large-diameter applications where reliable sealing, low operating torque, and long service life are critical. Widely used in oil & gas, petrochemical, power generation, and pipeline systems, these valves provide stable and efficient flow control performance.
Features of Trunnion Ball Valve

Trunnion-Mounted Ball Design

The ball is mechanically anchored by upper and lower trunnions, reducing operating torque and ensuring smooth operation under high pressure.


Low Operating Torque

Compared with floating ball valves, trunnion ball valves require less actuator force, making them ideal for automated systems.


Reliable Double Sealing Performance

Spring-loaded seats provide tight shut-off and bidirectional sealing, ensuring zero leakage even in demanding conditions.


Suitable for High Pressure & Large Sizes

Engineered for heavy-duty industrial applications, especially in high-pressure pipelines and large bore systems.


Fire Safe Design

Designed in accordance with international fire-safe standards to maintain sealing integrity during fire exposure.


Anti-Static Device

Prevents static electricity buildup between the ball, stem, and body for enhanced operational safety.


Blowout-Proof Stem

The internally mounted stem design improves safety and prevents accidental stem ejection under pressure.


Emergency Sealant Injection System

Optional sealant injection fittings allow temporary emergency sealing for seats and stem areas.


Long Service Life

Precision machining, durable sealing materials, and robust construction ensure extended operational reliability with minimal maintenance.


Flexible Actuation Options

Available with manual, pneumatic, electric, or hydraulic actuators to meet different automation requirements.


Features of Trunnion Ball Valve
SAVVY IMPORT AND EXPORT CO., LTD.
minaxue@savvyft.com
+86-18958911667
Room 1104, Poly Center Office Building, Lucheng District, Wenzhou City, Zhejiang Province, China
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minaxue@savvyft.com
+86-18958911667
Room 1104, Poly Center Office Building, Lucheng District, Wenzhou City, Zhejiang Province, China
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Room 1104, Poly Center Office Building, Lucheng District, Wenzhou City, Zhejiang Province, China
minaxue@savvyft.com +86-18958911667
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