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Forged Steel Flanged Metal Seal Trunnion Mounted Ball Valves
Main Features
Stem Design: The valve stem is supported by bearings, which reduces the operating torque and improves the stability and reliability of the valve. It is especially suitable for large-diameter and high-pressure working conditions.
Metal Sealing: Metal-to-metal sealing is adopted, which has higher wear resistance and high-temperature resistance, and is suitable for handling highly corrosive media.
Three-piece Body: The valve body is divided into three parts, which is convenient for assembly and maintenance, and at the same time ensures the overall strength and sealing performance of the valve.
Fire Safety Design: It complies with the API 607 fire safety standard and can maintain its sealing performance in extreme situations such as fires.
Anti-static Device: It has a built-in anti-static device to ensure electrical continuity among the valve stem, ball, and valve body, reducing the safety risks caused by static electricity.
Anti-blowout Valve Stem Design: The valve stem design includes a protective sleeve to prevent the valve stem from being blown out under high pressure.
Emergency Sealing Injection System: When the soft sealing material is damaged due to fire or other accidents, a sealant can be injected through the sealant injection device to provide additional sealing guarantee.
Multiple Connection Methods: It provides various end connection methods such as flange connection and butt welding connection to meet different installation requirements.
Technical Specifications
Size Range: 1/2"~56" (DN15~DN1400)
Pressure Rating: 150LB~2500LB (PN20~PN420)
Applicable Temperature: -46℃~425℃.
Applicable Medium: Water, gas, oil, corrosive chemicals, etc.
Materials:
Valve Body: A105 forged steel
Seat: Metal seal
Stem: A105 forged steel
Design Standards:
Design: API 6D, ASME B16.34
Flange Connection: ASME B16.5
Butt Welding Connection: ASME B16.25
Testing: API 598, API 6D
Fire Safety Testing: API 607, API 6FA.
Operation Modes: Manual (handwheel, gear), pneumatic, electric, etc.
Application Fields
Petroleum and Natural Gas Industry: Used for oil and gas transportation, wellhead isolation, pressure testing, etc., and it is especially suitable for occasions requiring high reliability and fire safety.
Chemical Industry: Used to handle highly reactive chemicals to ensure process safety.
Power Industry: Used for medium isolation in high-pressure systems, such as boilers and turbines.
Municipal Engineering: Used in water supply and drainage systems to ensure water quality safety and pipeline maintenance.
Test data exposed! The durability gap between ordinary ball valves and trunnion ball valves is amazing. Behind the more than 3-fold service life difference is the core difference in structural design and material technology. This article helps you avoid selection mistakes, choose a more durable and worry-free ball valve, and reduce long-term operation and maintenance costs through real working condition tests, parameter breakdown, and scenario adaptation. With 10 years of SEO + valve industry experience, full of practical information, follow our website for more industrial valve test comparisons and selection guides.
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