Produced at the request of leading companies in the Drinks Dispense Industry, the Super Speedfit Acetal Single Check Valve ensures protection against reversal of flow. The low headloss design and fast installation time make the valve the ideal selection. The valve is designed for use with liquids, it is not suitable for air and vacuum applications. Working Pressures and Temperatures 10 Bar at 20C 7 Bar at 65C intermittent hot water Minimum temperature 1C Typical 'crack open' pressure 0.02 Bar (approximately 0.3 psi) Specifications Acetal copolymer construction Nitrile O-rings FDA approved materials NSF Certified 51 61 Designed for use with liquids, not suitable for air and vacuum applications.