Mono-flange Valves

Colson Valves manufactures the DMF series – mono-flange needle valves engineered to provide multiple isolation points in a single, compact flange-mounted assembly. This space-efficient design is ideal for applications where installation space is restricted or where multiple isolation duties must be performed at a single connection point.

The DMF range is available with bolted bonnet (primary isolation) or standard bonnet configurations, in Block, Block & Bleed, and Double Block & Bleed arrangements. All valves feature non-rotating hard tips for effective shut-off, top-sealing bonnets, and metal-to-metal bonnet seals for pressure tightness at elevated temperatures.

Manufactured in-house at our Sheffield facility with full EN10204 3.1 material traceability and testing to internationally recognised standards.