AB71 is a large bore direct acting 2-port solenoid valve that is NC (open when energized). It is used for air, water, kerosene and oil, with Rc1/2, Rc3/4 and Rc1 ports. Its large orifices (ø12 to ø18) are designed for low pressure differentials.


| Working Fluid | Air / water / kerosene / oil (20 mm²/s or less) |
| Valve Structure | Direct acting, NC |
| Working Pressure Differential (Air) | AC 0 to 0.1 / 0.07 / 0.04 MPa, DC 0 to 0.08 / 0.04 / 0.03 MPa (Rc1/2 / Rc3/4 / Rc1) |
| Working Pressure Differential (Liquid) | AC 0 to 0.08 / 0.05 / 0.03 MPa, DC 0 to 0.08 / 0.04 / 0.03 MPa (Rc1/2 / Rc3/4 / Rc1) |
| Proof Pressure | 1 MPa (water pressure) |
| Fluid Temperature | -5 to 60 °C (no freezing) |
| Ambient Temperature | -10 to 60 °C |
| Valve Seat Leakage | 0.2 cm³/min (ANR) or less (air) |
| Port Size | Rc1/2, Rc3/4, Rc1 |
| Orifice Size | ø12 (Rc1/2), ø15 (Rc3/4), ø18 (Rc1) |
| Cv | 2.8 (Rc1/2), 4.3 (Rc3/4), 6.3 (Rc1) |
| Body/Seal Material | Bronze (stuffing: copper alloy) / FKM |
| Mounting Orientation | From vertical with the coil on top to horizontal |
| Weight | 1.0 kg (Rc1/2), 1.2 kg (Rc3/4), 1.6 kg (Rc1) |
| Rated Voltage | 100 VAC, 200 VAC, 12 VDC, 24 VDC, 48 VDC, 100 VDC (100 VAC also usable at 110 VAC (60 Hz), 200 VAC also usable at 220 VAC (60 Hz)) |