China Compact Cryogenic Trunnion Mounted Ball Valve with Worm Gear - Reliable Suppliers and Factory Solutions

1 / 1

China Compact Cryogenic Trunnion Mounted Ball Valve with Worm Gear - Reliable Suppliers and Factory Solutions

âˆšÂ Our trunnion-mounted design guarantees stable sealing and low operating torque, making it ideal for high-pressure applications in China.

âˆšÂ Featuring an extended stem with a cryogenic neck, this valve effectively isolates the packing from extreme low temperatures, ensuring no external leakage.

âˆšÂ The compact short-body structure is designed to save installation space while upholding cryogenic safety standards, making our products a top choice among suppliers.

âˆšÂ With worm gear operation, our large-size valves offer smooth and reliable manual control, perfect for various industrial applications.

âˆšÂ Our fire-safe, anti-static, and anti-blowout stem designs prioritize maximum safety, making our factory the go-to source for critical service needs.

Send Inquiry

Product Description

Key Features

Trunnion Mounted Structure

Stable sealing and low operating torque under high pressure, ideal for large-size cryogenic service.

Extended Stem & Cryogenic Neck

Isolates packing from -196°C media, reducing leakage risk in ultra-low temperature environments.

Compact Short-Body Design

Space-saving structure for skid-mounted or modular systems while maintaining cryogenic integrity.

Worm Gear Operation

Smooth and controlled manual actuation with reduced torque, suitable for frequent operation.

Cryogenic Sealing System

Specialized seat and seal materials accommodate low-temperature contraction for reliable shut-off.

High Safety Design

Anti-blowout stem with optional fire-safe and anti-static devices for critical and hazardous applications.

Frequently Asked Questions

Q What is the minimum operating temperature for this cryogenic ball valve?

This cryogenic ball valve is designed to operate at temperatures as low as -196°C, making it suitable for liquid nitrogen, LNG, and other ultra-low temperature cryogenic media applications.

Q Why is a trunnion mounted structure preferred over floating ball designs for cryogenic service?

Trunnion mounted structures provide stable mechanical support at both the top and bottom of the ball, ensuring low operating torque and reliable sealing performance under high pressure — especially critical in large-diameter cryogenic applications where floating ball designs may struggle.

Q How does the extended stem and cryogenic neck prevent leakage?

The extended stem and cryogenic neck create a physical and thermal barrier between the ultra-cold process media and the stem packing. This distance allows the packing zone to remain at a higher temperature, significantly reducing the risk of seal failure and fugitive emissions caused by material contraction at cryogenic temperatures.

Q Is the worm gear operator suitable for automated actuation?

The worm gear operator is primarily designed for manual actuation, providing smooth and reduced-torque operation ideal for frequent use. However, the valve can also be configured with pneumatic or electric actuators upon request to support automated control systems.

Q What materials are used in the cryogenic sealing system?

The sealing system uses specialized low-temperature compatible materials such as PTFE, PCTFE, or stainless steel reinforced seats that are engineered to maintain elasticity and sealing integrity even as they contract at temperatures reaching -196°C, ensuring a reliable shut-off in demanding cryogenic conditions.

Q What safety certifications or standards does this valve comply with?

The valve features a high-safety design including an anti-blowout stem as standard. Optional fire-safe and anti-static configurations are available, designed to comply with international standards such as API 607, API 6FA, and BS 6755 for use in critical and hazardous process environments.

Product Detail

China Compact Cryogenic Trunnion Mounted Ball Valve with Worm Gear - Reliable Suppliers and Factory Solutions

Product Description