Precision Isolation: Forged Steel Double Block and Bleed (DBB) Ball Valve

Introducing our premium Double Block and Bleed (DBB) Ball Valve, specifically engineered for critical service applications where absolute isolation and verifiable zero leakage are non-negotiable. This specialized valve integrates two primary shut-off balls and a central bleed mechanism into a single, compact body, drastically simplifying piping layouts and enhancing operational safety.

Designed for high-pressure, high-stakes environments, this integral DBB Ball Valve provides the ultimate assurance for pipeline maintenance, instrument isolation, and transfer line safeguarding.

✨ Product Specifications at a Glance

Feature	Detail
Core Keyword	Double Block and Bleed Ball Valve (DBB)
Model	DBB Ball Valve
Nominal Diameter (DN)	DN15
Construction Type	Integral Double Ball Valve
Driving Method	Manual
Material	Forged Stainless Steel
Connection Form	Flange
Structural Form	Fixing the Ball Valve (Trunnion Mounted)
Pressure Rating	High Pressure Service

🛡️ Critical Service Design: The DBB Advantage

The Double Block and Bleed configuration is vital in industries such as oil & gas, petrochemicals, and power generation. The traditional method requires three separate valves (two block valves and one drain valve), which increases potential leak paths, installation time, and footprint.

Our integral Forged Steel DBB Ball Valve combines all these functions into one compact unit, offering unparalleled safety and efficiency:

Double Block: Two independent sealing mechanisms (the two balls) provide redundancy. This means if the upstream ball seal fails, the second ball acts as a guaranteed backup isolation barrier.
Bleed/Vent: The central body cavity between the two balls can be vented or drained via a third, smaller valve (the “bleed”). This allows operators to verify absolutely zero pressure or fluid presence between the two closed balls before commencing work on the downstream side.
Integral High Pressure Design: The forging process of the stainless steel body ensures superior material integrity, making this valve perfectly suited for high pressure applications demanding robust performance and minimal chance of shell leakage.

⚙️ Engineering Excellence: Robust Construction Details

This DBB Ball Valve is designed for the most demanding services, focusing on longevity and reliable sealing integrity:

Forged Stainless Steel Material: The body is precision-forged from high-grade stainless steel, offering exceptional strength, durability, and superior resistance to corrosion, high temperatures, and chemical degradation compared to standard cast valves.
Trunnion Mounted Structure (Fixing the Ball Valve): The ball is securely supported by trunnion bearings. This fixing the ball valve structure prevents excessive pressure from being transferred to the valve stem, ensuring smooth, low-torque operation even under high pressure conditions.
Manual Operation: Controlled via a robust manual lever or handwheel, allowing for precise and reliable control over the opening and closing sequence.
Flange Connection: Designed with standard flange connections for secure, leak-free integration into the main pipeline.

🎯 Application Versatility

With a precise nominal diameter of DN15, this integral DBB Ball Valve is typically utilized in instrument isolation and small-bore sampling lines requiring the highest level of verifiable isolation:

Metering and Sampling: Used to isolate flow meters, pressure transmitters, or sampling points to ensure accurate readings and safe maintenance.
High-Pressure Isolation: Ideal for isolating high-pressure transfer lines in hydrocarbon processing and chemical injection systems.
Safety Critical Systems: Employed as a final layer of protection in systems requiring mandatory shutdown and zero-energy verification protocols.

Elevate your system safety and streamline your piping layout with the reliability and precision of our forged steel DBB ball valve – the definitive solution for critical isolation.