Hard Seal Trunnion Ball Valve-Zhejiang Yushun Valve Co., Ltd.

Hard Seal Trunnion Ball Valve

For Professionals Who Demand Safety, Stability & Performance

The Hard Seal Trunnion Ball Valve is engineered for high-pressure, large-diameter, and critical service applications. With a fixed-ball design supported by upper and lower bearings, it ensures relatively small operating torque, long-term sealing performance, and exceptional durability. Unlike soft-sealed valves, which may degrade over time or under harsh conditions, the hard seal mechanism ensures that the valve maintains its integrity.The metal-to-metal sealing surface is designed to withstand high pressures and temperatures, making it an ideal choice for industries such as oil and gas. Built to meet the rigorous demands of oil & gas, petrochemical, energy, marine, and water industries, it is the preferred choice for zero-leakage shut-off and reliable flow regulation.

Who This Product Is For:

We design this valve for real users—those who care about system efficiency, lifecycle cost, and operational safety:

User	User Profile	Key Priorities
Plant Maintenance Manager	Responsible for daily operation and shutdown maintenance	Durability, Easy Maintenance, Leak Prevention
Procurement Engineer	Bulk purchasing, project bidding	International Certification, Stable Delivery, Technical Compliance
Automation Specialist	System integration and remote control	Low Torque, Actuator Compatibility
EPC Contractor / OEM	Project integration, process design	Custom Specifications, Complete Documentation, High Cost-Performance

Applications That Trust Trunnion Ball Valves:

This valve is widely used in industries where precision, pressure and performance define success:

· Oil & Gas: Pipeline isolation, LNG storage, gas distribution

· Chemical & Petrochemical: Corrosive media, process safety, high-temp flows

· Power Plants: Steam lines, bypass valves, cooling systems

· Mining / Slurry: Abrasive fluids, large-diameter piping

· Water / Desalination: High-pressure feed systems, industrial water control

· Marine & Shipbuilding: Ballast systems, fuel management

· Automation / HVAC: Smart control systems, building management pipelines

What Makes This Valve Different?

Trunnion-Mounted Stability: Ball is fixed by trunnions, minimizing wear under pressure—perfect for large diameter and high-pressure lines.

Double Block & Bleed (DBB): Ensures zero-leakage isolation for system safety and maintainability.

Low Torque, Easy Automation: Supports electric/pneumatic actuators, reducing energy consumption and control lag.

Fire-Safe & Blowout-Proof: Meets international safety standards (API 6D, ISO 10497, CE, SIL, Fire Safe tested).

Full Customization Available: Materials include SS316, CF8M, F51, Inconel, etc.

End connections: Flanged / BW / RTJ (Size: 2" ~ 48"; Pressure: Class 150 ~ 2500 / PN16 ~ PN420)

Designed for Global Systems:
Used in 30+ Countries
API 6D Certified Manufacturing
Engineering Support From Pre-Sales to Delivery
Whether you're building a midstream pipeline in the Middle East or upgrading a power plant in Southeast Asia, our fixed ball valves have been proven in the field—under pressure, in remote zones, with tight timelines.

Your Next Step:
Looking to improve flow reliability, reduce maintenance costs, or meet international project standards?

Request a Custom Quote Within 24 Hours
For more details about Zhejiang Yushun Valve Co., Ltd., please contact us:
Email: w584574148@gmail.com