[email protected]
Home > Forged Steel Ball Valve > China High-Integrity Double Ball DBB Trunnion Mounted Valve Manufacturers, Supplier
China High-Integrity Double Ball DBB Trunnion Mounted Valve Manufacturers, Supplier
1 / 1
China High-Integrity Double Ball DBB Trunnion Mounted Valve Manufacturers, Supplier

China High-Integrity Double Ball DBB Trunnion Mounted Valve Manufacturers, Supplier

√ True double isolation achieved through independent dual ball design.
√ Integrated block and bleed system allows verified pressure control.
√ Trunnion-mounted construction delivers reliable performance under high pressure.
√ Compact integrated assembly reduces connections and potential leak paths.
√ Designed for demanding oil, gas, and pipeline service conditions.
√ Backed by SLVCN’s 30+ years manufacturing expertise and global project supply.

Send Inquiry

Product Description

Key Features

🛡️
True Double Block
Two independent balls provide complete upstream and downstream isolation, ensuring zero leakage.
💧
Built-In Bleed Port
Quickly release cavity pressure and easily check for leaks—safer and more reliable.
⚙️
Trunnion-Mounted Stability
Trunnion-mounted design reduces torque and keeps sealing performance consistent under high pressure.
📦
Compact DBB Design
Dual block and bleed integrated in one body—fewer connections, less chance of leaks, and easier installation.
🔧
Easy Maintenance
Bolted body design allows fast inspection and simple component replacement, saving time and effort.
🔥
Fire-Safe & Anti-Static Stem
Built to prevent static build-up, withstand fire, and eliminate stem blowout risks-perfect for oil, gas, and critical pipelines.

Product Description

Double Ball Double Block and Bleed (DBB) Valve is designed for critical pipeline and process applications requiring reliable shutoff and pressure verification. Featuring two independent ball mechanisms within a compact body and a built-in bleed port for cavity pressure release, this valve ensures secure isolation from both upstream and downstream pressure sources.

Key Advantages

Wide Pressure Range: Available in pressure classes up to Class 2500, ensuring performance in high-pressure environments.

Customizable Materials: Valve body, ball, and seat materials can be customized to meet specific application needs.

Automation-Ready: Compatible with pneumatic or electric actuators (ISO 5211 mounting pad), enabling precise, automated control.

Applications

Commonly used in Oil & Gas transmission, petrochemical plants, refinery systems, and power generation facilities, where reliability and safety are critical.

DBB Ball Valve Detail

Frequently Asked Questions

What is the main benefit of a Double Ball DBB Valve?
It provides two levels of independent shutoff in a single unit, allowing for safe maintenance and zero-leakage isolation in high-pressure systems.
Why is the trunnion-mounted design important?
The trunnion design supports the ball from both top and bottom, which significantly reduces operating torque and ensures a tighter seal under extreme pressure conditions.
How does the built-in bleed port enhance safety?
The bleed port allows operators to vent the cavity pressure between the two balls, confirming that the seals are holding perfectly before starting maintenance work.
Are these valves suitable for offshore applications?
Yes, with customizable materials and fire-safe designs, these valves are ideal for harsh offshore oil and gas environments.
Can the valve be operated automatically?
Absolutely. The valves come with ISO 5211 mounting pads, making them fully compatible with electric and pneumatic actuators for automated process control.
What pressure classes are supported?
These DBB valves are engineered to perform in various environments, with availability ranging up to Class 2500 specifications.

Related Products

China Class 300 Trunnion-mounted Forged Steel Ball Valve Supplier, Factories

China Class 300 Trunnion-mounted Forged Steel Ball Valve Supplier, Factories
High-Quality Class 2500 / 6000 PSI Forged DBB Trunnion-Mounted Ball Valve Manufacturer, Factory

High-Quality Class 2500 / 6000 PSI Forged DBB Trunnion-Mounted Ball Valve Manufacturer, Factory
China 300LB Forged DBB Trunnion-Mounted Ball Valve for Gas Pipeline Manufacturers, Factories

China 300LB Forged DBB Trunnion-Mounted Ball Valve for Gas Pipeline Manufacturers, Factories
China 900LB Forged DBB Trunnion-Mounted Cryogenic Ball Valve Manufacturer, Suppliers

China 900LB Forged DBB Trunnion-Mounted Cryogenic Ball Valve Manufacturer, Suppliers
China Class300 Forged DBB Trunnion-Mounted Ultra-Low Temperature Ball Valve Suppliers, Factories

China Class300 Forged DBB Trunnion-Mounted Ultra-Low Temperature Ball Valve Suppliers, Factories
China Class 900 Reduced Port Forged DBB Trunnion-Mounted Cryogenic Ball Valve Manufacturers, Factories

China Class 900 Reduced Port Forged DBB Trunnion-Mounted Cryogenic Ball Valve Manufacturers, Factories
China Stainless Steel Twin Ball DBB Valve with Dual Manual Handles Manufacturer, Factory

China Stainless Steel Twin Ball DBB Valve with Dual Manual Handles Manufacturer, Factory
High-Quality Twin Ball DBB Trunnion ‑Mounted Ball Valve with Worm Gear Supplier, Factories

High-Quality Twin Ball DBB Trunnion ‑Mounted Ball Valve with Worm Gear Supplier, Factories
OEM Reducing Flanged Twin Ball Double Block and Bleed Valve Suppliers, Factories

OEM Reducing Flanged Twin Ball Double Block and Bleed Valve Suppliers, Factories
High-Quality Integrated Twin Ball DBB Valve with Dual Stems Manufacturers, Suppliers

High-Quality Integrated Twin Ball DBB Valve with Dual Stems Manufacturers, Suppliers