Characteristic: 1. With manual override to shut off the solenoid valve 2. The solenoid valve maintains open when de-energized 3. Applied to fire fighting system Medium: Water EPDM Seal: -30C to 120C VITON Seal: -30C to 150C Pressure: Port Size: Port Thread: Orifice (mm): Voltage: Tolerance: Coils: Material: YCXF Series Normally Closed, with Coil S21B, DIN Valve Body Determine Valve Body Code Orifice mm \ Port Thread Example: YCXF 32 GSN S21B1, YCXF SERIES, N.C., 32MM ORIFICE, 11/4"G, STAINLESS STEEL BODY NBR SEAL, COIL S21B, AC220V, DIN.