Sampling and Injection Valves

Colson Valves manufactures modular sampling and chemical injection valve assemblies engineered for safe, verifiable isolation in process sampling and chemical injection applications. These integrated assemblies combine primary and secondary isolation with vent valves and connection points in a single, compact unit — reducing potential leak paths and installation time.

The DFC and DFP series provide double block & bleed isolation with chemical injection probes and check valves. The DMC and DMP series deliver the same functionality in a mono-flange configuration for space-restricted installations.

All sampling and injection assemblies are manufactured in-house at our Sheffield facility, with full EN10204 3.1 material traceability, pressure testing and compliance with internationally recognised standards.