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China Suppliers Factory Class 2500 / 6000 PSI Forged DBB Trunnion-Mounted Ball Valve for Maximum Safety and Durability
Maximum Safety & Leak Prevention
Double-Block-and-Bleed (DBB), Emergency Sealing Device, Anti-Static, Fire-Safe (API 607 / API 6FA), and Blow-Out Proof Stem ensure safe operation under extreme high-pressure and flammable conditions.
Reliable Seat Sealing
Advanced seat sealing structure provides leak-free performance under high pressure, supporting both single and double sealing designs for additional safety.
Extreme Pressure & Temperature Capability
Trunnion-mounted forged design ensures stable operation under pressures up to Class 2500 / 6000 PSI and temperatures from -196℃ to 450℃ (material dependent).
Durable & Corrosion-Resistant
Constructed from high-quality forged steel and corrosion-resistant alloys, capable of withstanding sulfide stress cracking and harsh industrial environments.
Flexible & Easy Integration
Supports manual, worm gear, electric, or pneumatic actuation. Optional ISO 5211 direct mounting, locking device, stem extension, and side/top-entry assembly enable seamless installation and actuator compatibility.
Versatile Port Options
Available in Full Bore or Reduced Bore designs to optimize system flow and reduce pressure drop according to process requirements.
Customizable Options
Wide range of sizes, body materials (A694F52, A694F60, A694F65, A182F6A, A182F316, A182F347, 17-4PH, A182F44, A182 F51, A182 F53, Inconel 625, Incoloy 800, Hastelloy C, etc.), end connections, actuation types, and sealing options can be tailored to meet project-specific requirements.
Proven Industrial Applications
Ideal for Oil & Gas, Chemical & Petrochemical, Power Generation, Offshore & Deepwater, Aerospace & Military, Water Treatment, and Metallurgical applications. Trusted in critical high-pressure systems worldwide.
DBB refers to a valve configuration that provides two seating surfaces, each capable of sealing against pressure from a single source, with a bleed port between them. This design allows operators to safely isolate sections of a pipeline and verify zero-pressure before maintenance, making it essential for high-pressure and hazardous fluid systems.
The trunnion-mounted forged ball valve supports pressures up to Class 2500 / 6000 PSI and operating temperatures ranging from -196℃ to 450℃, depending on the selected body material and sealing configuration.
The valve supports multiple actuation methods including manual handwheel, worm gear, electric actuator, and pneumatic actuator. It also features optional ISO 5211 direct mounting pads for seamless actuator integration, along with locking devices and stem extensions for added operational flexibility.
A wide range of body materials is available, including A694F52, A694F60, A694F65, A182F6A, A182F316, A182F347, 17-4PH, A182F44, A182 F51, A182 F53, Inconel 625, Incoloy 800, Hastelloy C, and more. Custom material options can be arranged to meet specific project requirements.
Full Bore (Full Port) valves have an internal diameter equal to the pipe bore, allowing unrestricted flow and minimal pressure drop — ideal for pigging operations. Reduced Bore (Standard Port) valves have a smaller internal diameter, which can reduce material costs and weight while still meeting most flow requirements in standard applications.
This valve is engineered for demanding industrial environments including Oil & Gas, Chemical & Petrochemical, Power Generation, Offshore & Deepwater platforms, Aerospace & Military, Water Treatment, and Metallurgical industries. Its fire-safe, anti-static, and high-pressure certifications make it a trusted choice for critical pipeline systems worldwide.