Ball check valve 331 series

femaleYfor water

The 331 series, which are manufactured by Sferaco, are female check valves made of cast iron. They are ideal to use in water distribution, and watering applications. The units have an ambient temperature range from 10 °C, and up to 80 °C, and has the capability of handling an utmost pressure of up to 10 bars. The 331 series also features a removable bonnet. SPECIFICATIONS ; • - Ail positions thanks to the stainless Steel spnng • - Respect the flow direction indicated by an arrow on the body • - F langes R.F. PN10/16 up to DN150. PN16 from DN200 to DN300. PN10 over • - With Steel stramer basket and 6 mm mesh ( Ref. 363 ) • - Weak head loss thanks to the cylindncal internai designing • - Anti-corrosion epoxy internai and extemal pamtmg blue color RAL 5017.100 p thickness • - Bronze bushing to avoid blocking of the dise • - Drilled boss on request for bypass or to check the thickness • - Disc designed for a better hydrodynamism • - Silent solution • - Minimum back pressure for tightness : 0.2 bars USE: • - Water distnbution • - Min Température Ts 10°C • - Max Température Ts :♦ 120°C • - Max Pressure Ps : 16 bars up to DN300.10 bars over RANGE • - Flanged PN1Q/16 from DN50 to DN 150. PN16 from DN 200 to DN 300 and PN10 for DN350 to 600 Ref. 366 • - Flanged PN1Q/16 from DN50 to DN 150 and PN16 from DN 200 to DN 300 with Steel stramer basket Rof. 363