18061659285
China Class 2500 / 6000 PSI Forged DBB Trunnion-Mounted Ball Valve Suppliers | Factory Direct Quality
Key Features
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.
Frequently Asked Questions
What is a Double-Block-and-Bleed (DBB) ball valve and why is it important?
A Double-Block-and-Bleed (DBB) ball valve provides two independent sealing points with a bleed port between them, allowing operators to safely isolate pipeline sections and vent trapped pressure. This design is critical in high-pressure oil & gas and petrochemical applications where leak-free isolation and safe maintenance are non-negotiable.
What pressure and temperature ranges can the trunnion-mounted ball valve handle?
The trunnion-mounted forged ball valve is rated for pressures up to Class 2500 / 6000 PSI and supports operating temperatures from -196℃ to 450℃ depending on the body material selected. This wide range makes it suitable for cryogenic, ambient, and elevated-temperature service conditions.
What actuation types are compatible with this ball valve?
The valve is compatible with manual handwheel, worm gear operator, electric actuator, and pneumatic actuator options. Optional ISO 5211 direct-mount pads allow straightforward actuator installation, while locking devices and stem extensions address specialized mounting requirements.
What is the difference between Full Bore and Reduced Bore ball valve designs?
Full Bore valves feature a ball opening equal to the pipe's inner diameter, delivering maximum flow capacity and enabling pigging operations with minimal pressure drop. Reduced Bore valves have a smaller ball opening that allows for a more compact, cost-effective design while still satisfying most standard pipeline flow requirements.
Which body materials are available, and how do I select the right one?
Available body materials include A694F52, A694F60, A694F65, A182F6A, A182F316, A182F347, 17-4PH, A182F44, A182 F51, A182 F53, Inconel 625, Incoloy 800, Hastelloy C, and more. Selection depends on process media composition, operating temperature, pressure class, and specific corrosion resistance requirements of the application.
Is this ball valve certified fire-safe and compliant with industry standards?
Yes. The valve is designed and tested to comply with fire-safe standards API 607 and API 6FA, ensuring reliable sealing integrity when exposed to fire conditions. Combined with anti-static design and a Blow-Out Proof Stem, it meets the safety demands of flammable, explosive, and high-risk industrial environments such as oil refineries and offshore platforms.