Pipeline DBB Valves

Colson Valves manufactures the DMB series – modular double block & bleed ball valves engineered for pipeline and process isolation duties where safety, compliance and verifiable isolation are essential.

The DMB range provides positive double isolation with a central bleed for pressure verification, in a robust, fire-safe tested design. Available in a wide range of flange sizes, pressure classes and materials, with Ball/Needle/Ball or Ball/Ball/Ball configurations to suit different isolation requirements.

All DMB valves are designed and manufactured in-house at our Sheffield facility. Fire-safe tested to BS 6755 Part 2, with full EN10204 3.1 material traceability and compliance with internationally recognised standards.