Trunnion Ball Valves

Trunnion Mounted Ball Valve Manufacturer

TIANyu are top of the best professional trunnion-mounted ball valve manufacturers in China.
Design Standards: API 6D, API 608, ISO 17292, BS 5351
Size Range: 1/4 – 60 Inch
Pressure Range: Class 150-2500 LB, 10000 PSI (API 6A Products)
Material Range: Cast Steel, Forged Steel, Carbon Steel, Stainless Steel, Alloy Steel, Bronze, Ti
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW), HUB
Body Structures: End Entry, Top Entry (easy for on-line maintenance)
Body Types: 2pc split body, 3pcs split body
Body&Bonnet Connection: Bolted Bonnet, Full Welded Bonnet (for Hazardous service need longer working life with less leakage point)

WHAT IS A TRUNNION MOUNTED BALL VALVE?

A trunnion-mounted ball valve is mainly used in the pipeline for on-off applications.
It is one kind of quarter-turn valve, it’s open when the ball’s hole is in line with the flow inlet and closed when it is 90 degrees rotated by the valve handle, blocking the flow. And normally can be lockable at a different position to control the fluid.

THE STRUCTURE OF TRUNNION MOUNTED BALL VALVES

TianYu Trunnion Mounted Ball Valve is a type of ball valve with a fixed ball supported by trunnions, or pivots, at the top and bottom, providing stability and reducing the torque required to operate the valve. This design allows for better handling of high-pressure applications and larger valve sizes. The trunnion supports absorb the pressure load, making the valve suitable for demanding environments. Trunnion ball valves offer reliable sealing and minimal leakage, making them ideal for use in oil and gas, petrochemical, and industrial applications. Their robust construction ensures durability, low maintenance, and efficient performance in critical systems.

The ball is fixed by a stem and trunnion, and the seats are a spring-loaded assembly of seat retainer (Metal) and seat insert (Soft). Under low pressure the spring will force the seat to ball and when under high pressure, the fluid will push the seats to seal. Compared with floating valves, it has a wider size and pressure range, with lower operation torque which can save the actuator cost.

Related News

Excelling in Harsh Conditions, Leading the Industry with High-Performance Valves for Stable Operation

Tianyu Valve’s high-performance valves are widely used in harsh operating conditions across industries such as petrochemicals, power generation, metallurgy, and sewage treatment. They excel in scenarios involving high temperature and pressure, strong corrosion, high-velocity fluid erosion, and frequent opening and closing, ensuring stable equipment operation and meeting the unique requirements of various industries.

Trunnion Ball Valves Parts

Why Choose Us

Ensure Safety

Our products and services comply with international standards and specifications to make sure that we only produce the best and highest quality products and services to our clients.

Customization Service

We offer tailor-made industrial valves to ensure that our product fits your application standards and demand. TIANYU is ISO, API, MSS, and ASME compliant to guarantee you the highest product quality.

Fast Shipping

As a business partner, TIANYU makes sure that we commit to our clients’ requested deadline because we very much understand the importance of adhering to the timeline required.

After-Sales Service

TIANYU’s service does not end once our industrial ball valves are being delivered. Also, we offer warranties and provide customer service to our clients as part of our quality service.

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