22mm Brass Compression Double Check Valve — WRAS Approved
This 22mm Brass Compression Double Check Valve is a high-quality plumbing safety component engineered to prevent the back-siphonage of contaminated water into the mains potable water supply. Built with two independently operating internal spring-loaded cartridges, it ensures a strictly unidirectional water flow. Manufactured from heavy-duty solid brass, this durable valve integrates seamlessly into standard 22mm copper or plastic pipework systems.
Identification Guide:
Product Type: Non-Return Double Check Valve | Size: 22mm | Material: High-Grade Yellow Brass | Connection: Compression Ends (BS EN 1254-2) | Approval: WRAS Approved
Key Features
- Dual Protection: Features two internal check cartridges to provide secondary safety assurance if one seal is compromised.
- WRAS Certified: Fully compliant with strict UK Water Regulations for direct connection to mains drinking water networks.
- No Specialist Tools: The mechanical compression ends drop directly onto copper pipes using basic plumbing spanners.
- Robust Temperature Range: Rated to handle system fluids reliably from cold up to peak domestic hot water configurations.
Installation Note
Always ensure the directional flow arrow stamped into the brass casting matches the direction of your system's water flow. This valve is suitable for hot and cold domestic services, heating circuits, and outdoor tap water feeds requiring Fluid Category 3 backflow protection.