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Product Description Hansen Nylon Check Valves Used In-Line as a non return valve to stop fluids flowing back through your system. High Performance, Cost Effective Check Valve with a Strong Compact Design that delivers high volumes of water quickly with unrestricted full flow Unique design gives you exceptional flow rates thus can move more water in less time and save on pumping costs Screw Cap allows for easy access for in-line servicing No Poppet Valve to wear or jam Diaphragm and spring are interchangeable with the same size Hansen Foot Valve Fast response when opening and closing Smooth operating valve for high efficiency with the valve opening at only 1psi All connecting threads are BSPT New Zealand Made Manufactured from strong, non-corrosive UV stabilised materials for a long life which are approved for use with Potable (drinkable) Water 16 Bar Product Sizing and Pressure Ratings Metric BSP Imperial BSP Max Pressure @20C 25mm 1″ 16 Bar 32mm 1 1/4″ 16 Bar 40mm 1 1/2″ 16 Bar 50mm 2″ 16 Bar 63mm 2 1/2″ 16 Bar Conversion Chart 16 Bar – 1600 kPa – 235 PSI 12 Bar – 1200 kPa – 175 PSI> 10 Bar – 1000 kPa – 145 PSI 20 Celcius – 68 Fahrenheit