Trunnion Mounted Ball Valve

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)

DN100 PN16 Flange CF8/WCB Trunnion Mounted Ball Valve With Hydraulic Actuator

TIANYU DN100 PN16 Flange CF8/WCB Trunnion Mounted Ball Valve With Hydraulic Actuator with hydraulic actuator combines robust design, precise control, and material versatility. Ideal for high - pressure, corrosive, or precision - flow applications in oil & gas, power, and chemical industries.Customize with: CF8M (316L) for extreme corrosion, higher - temp seals (e.g., Inconel), explosion - proof actuators, or smart control systems. Tailor to your media, pressure, and automation needs for optimal performance.

DN400 600LB A105 Carbon Steel Top-entry Ball Valve Flange Trunnion Mounted Ball Valve

DN400 600LB top-entry ball valve: A105 steel, RJF flange, metal seats. Reliable for high-pressure oil, gas, steam. Easy in-line maintenance, fire-safe.Customize with: 316 stainless steel trim for corrosion resistance, PTFE seats for chemical service, electric actuators with smart controls, or extended bonnets for cryogenic media. Tailored to your high-pressure system needs.

API 6D High-Pressure 3 PCS 1500lb Flange-Type Forged Stainless Steel Full Port Trunnion Ball Valve

API 6D High-Pressure 3 PCS 1500lb Flange-Type Forged Stainless Steel Full Port Trunnion Ball Valve TIANYU API 6D 3-piece trunnion ball valve: DN15~DN200, 1500lb, F316L, full port, flange. Handles sour gas, oil, steam to -54~316℃. Reliable, maintainable, API/NACE compliant.Customize: F316L for extreme corrosion, metal seals for 316℃+, electric actuators with smart controls, RTJ flanges for ultra-high pressure. Tailored to your high-pressure system needs.

ANSI CE DN200 Class 2500LB Stainless Steel F316/F304 Flange-RTJ 3PC Worm Gear Trunnion Ball Valve

ANSI CE DN200 Class 2500LB Stainless Steel F316 Flange-RTJ 3-Piece Worm Gear Trunnion Ball Valve TIANYU 8" Class 2500 trunnion ball valve: F316 stainless steel, RTJ flange, NACE-compliant. -196~450℃, 42MPa. For sour gas, offshore, chemicals. Customizable: F316L for low-carbon needs, metal seats for 450℃+, electric actuators for automation. Ensures safety in extreme high-pressure, corrosive environments.

API6D 2PC DN100 600LB Forging Stainless Steel F316L Flange Steel Peek Trunnion Ball Valve

API6D 2PC DN100 600LB Forging Stainless Steel F316L Flange Steel Peek Trunnion Ball Valve TIANYU 2PC trunnion ball valve: 1/2"~36", 600LB, F316L, -196~450℃. Flanged, NACE/ISO 5211. For oil, chemicals. Customizable: 2"→1.5" Reduction in diameter，metal seats for high temp, electric actuators for automation

API6d 16inch Class 300 Cast Steel Wcb/Wcc/Lcc Gear Flanged Trunnion Ball Valve

API6d 16inch Class 300 Cast Steel Wcb/Wcc/Lcc Gear Flanged Trunnion Ball Valve TIANYU trunnion ball valve: 6"~48", Class 150~600, -196~450℃. Cast steel, gear-operated, flanged. For oil, water, gas. Customizable: LCC for cryogenics, metal seats for high temp, electric actuators for automation.

Trunnion Mounted ball valves excel in high-pressure, low-torque, and bidirectional sealing for industries.

The trunnion-mounted ball valve is mainly used in the pipeline for on-off applications.
Trunnion Mounted ball valves have become the preferred choice for large-diameter and high-pressure pipeline systems in industrial fields due to their high-pressure stability, low-torque operation, and bidirectional sealing capability. They excel particularly in scenarios requiring long-term reliable sealing and safe shut-off.

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.

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Trunnion Mounted Ball Valve 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.