RO Solenoid Valve 2-way normally closed Voltage:110/220V,50/60Hz,12/24V Pipe size:3/8" ~ 2" With CE TUV certificates RO Solenoid Valve1 ... :AC 110/220V, 50/60Hz, DC 12/24V7.Material of solenoid valve:Seals:NBR , VITON or EPDM, body: Forged brass, cast brass ... (for orifice:Φ32, 40, 50 only);8.Brass series solenoid valve with CE TUV, ISO9001 approvement. Normally Closed|Open 2 Way ...