High-Quality Forged Double Ball DBB Valve with Dual Gear Operation - China Suppliers and Factory for Zero-Risk Isolation Manufacturer, Manufacturers

1 / 1

High-Quality Forged Double Ball DBB Valve with Dual Gear Operation - China Suppliers and Factory for Zero-Risk Isolation Manufacturer, Manufacturers

âˆš Achieve Zero-Risk Isolation with Our True Double Block and Bleed Systems

âˆš Ensure Seal Integrity with Innovative Online Bleed Verification Technology

âˆš Designed for High Pressure Service with Our Heavy-Duty Forged Trunnion Structure

âˆš Optimize Space with Compact Dual Isolation, Replacing Multiple Valve Installations

âˆš Engineered Specifically for Critical Oil & Gas Applications as Trusted by China Suppliers

âˆš Benefit from Over 30 Years of Severe Service Manufacturing Expertise from Our Factory

âˆš Proudly Exported to 100+ Countries Worldwide, Setting Industry Standards

Send Inquiry

Product Description

Key Features

True Double Block and Bleed Isolation

Two independent balls provide positive dual isolation, replacing traditional two-valve assemblies in one compact body.

Integrated Cavity Vent

Allows pressure monitoring and safe cavity discharge to confirm seal integrity during online operation.

Heavy-Duty Forged Construction

Designed for high pressure service with fire-safe, anti-static, and blowout-proof safety protection.

Automation-Ready Design

ISO 5211 interface with flexible materials and pressure ratings for critical oil & gas applications.

Frequently Asked Questions

What is a Double Block and Bleed (DBB) ball valve?

A DBB ball valve features two independent seating surfaces that simultaneously block flow from both directions. A bleed port allows trapped cavity pressure to be safely vented, providing positive dual isolation in a single compact body.

What is the purpose of the integrated cavity vent?

It allows operators to monitor pressure between the two seats and safely discharge trapped fluids without shutting down the system, enabling online seal verification for enhanced safety.

What safety standards does the construction comply with?

The heavy-duty forged trunnion construction meets fire-safe (API 607 / API 6FA), anti-static, and blowout-proof requirements, ensuring integrity under extreme conditions.

Is this DBB valve compatible with automated actuators?

Yes. It features an ISO 5211 mounting interface, making it compatible with pneumatic, hydraulic, and electric actuators for remote-operated control systems.

Can this valve be customized for specific projects?

Absolutely. It is available in various sizes, pressure classes, and materials (carbon steel, stainless steel, duplex alloys) with tailored end connections and coatings.

How does a DBB valve replace traditional assemblies?

It consolidates two separate block valves and one bleed valve into a single unit. This reduces pipeline length, minimizes leak paths, lowers weight, and simplifies maintenance.

Product Detail

High-Quality Forged Double Ball DBB Valve with Dual Gear Operation - China Suppliers and Factory for Zero-Risk Isolation Manufacturer, Manufacturers

Product Description