Trunnion Ball Valve (DIN)
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Nominal Size : |
1/2″-24″ |
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Pressure Rating : |
PN10-PN16-PN25-PN40-PN64-PN100 |
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Design Standards : |
API 600 |
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Actuation : |
Lever operated, gear operated, pneumatic actuated, electric actuated, hydraulic actuated |
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End Connections : |
Bw, Flanged-Rf/RTJ |
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Materials : |
ASTM A105&A216-WCB&A352-CF8&A352-CF8M&A352-CF3&A352-CF3M |
The trunnion ball valve (ANSI) provides reliable flow control in oil & gas, chemical and general process lines with low operating torque, high tightness and long service life. With EMS Valve’s engineering capability and rigorous testing procedures, we deliver fast, safe and economical solutions for your projects.
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We have been operating in the sector since 1979.
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What Is an ANSI Trunnion Ball Valve?
A trunnion ball valve is a type of ball valve in which the ball is supported by upper and lower trunnion pins, so that line pressure is distributed evenly to the seats. This design offers low operating torque and stable sealing performance, especially in large diameters and high-pressure classes. With double block and bleed (DBB) options, it increases pipeline safety and raises safety levels in operation and maintenance areas.
Technical Features and Benefits
- Low torque – high tightness: Thanks to the trunnion-mounted design, actuator size is reduced and energy consumption decreases.
- DBB/DIB options: Double block and bleed on the line or in the valve for safe isolation.
- Fire-safe design: In suitable configurations, complies with API 607 / ISO 10497 fire-safety requirements.
- Fugitive emission control: Design options in line with ISO 15848 requirements for fugitive emissions.
- Antistatic & blow-out proof stem: Protection against static electricity and prevention of stem blow-out.
- Wide body/seat range: “Soft seat” options such as EPDM, NBR, FKM, PTFE, RTFE, PEEK as well as metal-to-metal sealing configurations.
Application Areas and Performance
The trunnion ball valve delivers efficient and reliable performance in the following processes:
- Oil & gas transmission pipelines, piggable full-bore solutions
- Refineries and petrochemical plants, high-temperature and aggressive media
- Power plants, steam–condensate and auxiliary systems
- Water, wastewater and seawater systems with corrosion-resistant materials
- General process industries, solvent and chemical lines
Operational advantages
- Reduced operating costs thanks to lower drive torque
- Extended maintenance intervals with optimized seat loading
- Enhanced field safety with DBB/DIB configurations
Trunnion Ball Valve Price and Quotation Process
The price of a trunnion ball valve depends on the following parameters: size (NPS/DN), ASME class, body/seat materials, DBB/DIB configuration and test scope. Once you share your project specification, EMS Valve engineers define the most suitable configuration and prepare a competitive, transparent and fast quotation.
If you are looking for low torque, high safety and long service life in large diameters, the ANSI trunnion ball valve is the right choice. Let us define together the most suitable trunnion ball valve configuration for your project with EMS Valve’s engineering experience. Request a quotation now and let us optimize both performance and total cost of ownership.
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