These DZR brass double check valves contain two independent spring-loaded checks to reduce reverse flow in compatible water pipework. Female BSP connections allow inline installation where the selected valve and backflow-protection arrangement meet the system design and applicable water regulations.

Product details

• DZR brass body
• Female BSP connection at both ends
• Available sizes: ½ in, ¾ in and 1 in
• Stated to BS 6282-5
• WRAS approved

Select the correct size and confirm the approval details, fluid category, pressure, temperature, flow direction and local water-regulation requirements before ordering. A double check valve is not suitable for every contamination risk, and approval of the product does not by itself confirm that it is the correct protection method for a particular installation.