Brass Spring Check Valves ART.8707 Brass Spring Check Valves Size:From 1/2"To4" Related products: Brass Valves, Sanitary Ware, Basin Taps, Sink Mixers Technical Details: 1.6 mpa water working pressure From 0℃ to 100℃ working temperature Parallel pipe thread conforms to ISO228/1, BSP, NPT, etc. ...