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The Reliance Water Controls double check valve prevents back flow and back-siphonage contamination risks. Made from DZR brass, it features EPDM seals, acetyl copolymer check cartridges, and a stainless steel spring. Its compact and lightweight design allows for quick and easy installation. The valve supports high flow rates with minimal pressure drop, making it suitable for all Class 3 contamination risks as per the water supply regulations of 1999. It operates at pressures from 0.1 bar to 16 bar and has a maximum temperature of 80C. An integral test point ensures the correct function of the downstream check valve.. Reliance Water Controls Female x Female Brass Double Check Valve - 1/2 inch Reliance Water Controls (RWC) FLOW230005