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Double Block & Bleed Valve
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Double Block & Bleed Valve
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Double Block & Bleed Valve
Weatherock Energy delivers Double Block and Bleed (DBB) Valve solutions engineered for applications where positive isolation and controlled cavity pressure are critical. By integrating two independent sealing barriers with an intermediate bleed or venting system, DBB valves enable the isolated section to be monitored, depressurized, or drained without removing the valve from service.
Designed for critical oil & gas, pipeline, terminal, and process applications, Weatherock Energy provides DBB configurations tailored to project requirements, including:
API 6D Double Block & Bleed Valves
Trunnion Mounted DBB Ball Valves
Expanding Gate DBB Valves
Single-Body and Double-Block Configurations
Double Isolation & Bleed Systems
Above-Ground and Buried Pipeline DBB Valves
Special Alloy DBB Valves for Corrosive Service
Technical Features
| Parameter | Details |
|---|---|
| Type | 3-Piece Side Entry, Bolted Body, Soft Seat |
| Size | NPS 3 – NPS 24 |
| Pressure | Class 150 – Class 1500 |
| Material | Carbon Steel, Stainless Steel, Duplex Stainless Steel etc. |
| Design Standard | API 6D |
| Face to Face | MFG Standard |
| End Connection | ASME B16.5, ASME B16.25, ASME B16.47, ASME 16.11 |
| Test Standard | API 6D |
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Global Presence. Local Delivery
Served over 5,000 + customers from 60 countries
Weatherock Energy operates offices in China, Hong Kong, and Houston, with manufacturing facilities based in China and overseas. We are committed to delivering professional, reliable products and services to clients around the world.
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Annual production capacity 15 million Tons
Annual sales of $10 million











