Double Block Bleed Valve (Dbb Valve)

Double Block & Bleed Valve (DBB Valve) is a compact valve system designed to provide positive isolation by incorporating two independent block valves along with a dedicated bleed valve in a single assembly. This configuration allows the process media to be completely shut off while enabling safe venting or draining of trapped pressure between the two sealing points. It significantly enhances safety, especially in critical applications where zero leakage and reliable isolation are required.

Manufactured from high-quality materials such as SS 316, SS 304, carbon steel, or alloy steel, DBB valves are engineered for high-pressure and high-temperature service conditions. Their integrated design minimizes the need for multiple fittings and connections, reducing installation space, weight, and potential leak paths. These valves are widely used in instrumentation systems, pipelines, and process industries.

• Product Type: Double Block & Bleed Valve (DBB Valve)
• Material: SS 316 / SS 304 / Carbon Steel / Alloy Steel
• Configuration: 2 Block Valves + 1 Bleed Valve
• Valve Type: Ball / Needle / Combination Type
• Connection Type: Threaded / Flanged / Tube Ends
• Thread Type: BSP / NPT / BSPT
• Size Range: 1/4” to 2” (instrumentation) / higher for pipeline
• Pressure Rating: Up to 6000 PSI (instrumentation type)
• Temperature Range: -40°C to 400°C
• Operation: Lever / Handwheel
• Standards: API / ASME / ANSI / ISO