RSV-W is a pilot operated diaphragm solenoid valve for tap water: watering greenery on urban roads, in parks and factories and on building rooftops, and controlling tap water supply. Continuously energized and latch pulse types are available, with low water hammer. Six port sizes from Rc1/2 to Rc2 are offered, and a version with a strainer in the main flow path can be chosen for 15A to 25A. The coil is selected from indoor types (2G, 00) and outdoor types (3A, 7A (20A or larger), 7L (20A or larger)).


| Working Fluid | Tap water |
| Max. Working Pressure | 1 MPa |
| Working Pressure Differential | 0.02 to 1 MPa |
| Structural Proof Pressure | 1.75 MPa |
| Fluid Temperature | 0 to 60 °C (no freezing) |
| Ambient Temperature | 0 to 60 °C |
| Ambient Humidity | 95 % or less |
| Orifice Size | 15A: 15.5 mm / 20A and 25A: 25.5 mm / 32A, 40A and 50A: 50.5 mm |
| Cv | 15A 3.4 / 20A 10.1 / 25A 12.0 / 32A 25.0 / 40A 34.0 / 50A 41.0 |
| Switching Frequency | 1 time/min. or less |
| Mounting Orientation | Horizontal piping, coil on top |
| Port Size | Rc1/2 (15A), Rc3/4 (20A), Rc1 (25A), Rc1 1/4 (32A), Rc1 1/2 (40A), Rc2 (50A) |
| Weight | 15A: 1.5 kg / 20A and 25A: 2.0 kg / 32A, 40A and 50A: 4.2 kg |
| Drive Method | Continuously energized (24 VDC, 100/200 VAC 50/60 Hz), latch pulse signal (coil 7L) |
| Power Consumption (coil 3A) | 100/200 VAC: 5.2/3.8 W (50/60 Hz), 24 VDC: 11 W |
| Coil Thermal Class | Class B (130) |
| Body Material | Bronze casting |
| Diaphragm Material | Ethylene propylene rubber |
| Valve Seat Material | Nitrile rubber |