Bri Non Return Valve 40mm Spring Brass 1024-40

In-line spring checkvalve. 1 1/2"BSP female iron connection ends. Rough Brass Features and Benefits: Brass piston. Stainless steel spring. NBR (acrylonitrile butadiene) rubber seat washer. Normal working pressure 300kPa 45PSI. Opening pressure: < 5kPa 0.7PSI. Tested to 2,000kPa 300PSI static pressure. Suitable for domestic hot and cold water application.