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The double check valve from Reliance Water Controls prevents backflow and back-siphonage contamination. It's crafted from DZR brass, with EPDM seals, acetyl copolymer check cartridges, and a stainless steel spring. Its compact design ensures quick and easy installation. The valve delivers high flow rates with minimal pressure drop, ideal for Class 3 contamination risks under the 1999 Water Supply Regulations. It operates within a 0.1 to 16 bar pressure range and tolerates temperatures up to 80C. The valve features an integral test point to monitor downstream check valve function. It's durable, reliable, and perfect for various applications.. Reliance Water Controls Female x Female Brass Double Check Valve - 1 inch Reliance Water Controls (RWC) FLOW230007