WV121S is a normally closed 2/2-way direct acting solenoid valve that stays closed when the coil is de-energized. It is compact, high performing and works from zero minimum differential pressure, for oil burners, measuring and control equipment, welders and medical devices. Brass and stainless steel 303 bodies are available, with UL and CE approval (DC specifications only).
| Fluid | Air, water, inert gas, oil, corrosive fluids |
| Valve Material | Brass, stainless steel 303 |
| Seal Material | FKM (standard), NBR (on request) |
| Port Size | 1/8" PT, 1/4" PT (NPT and PF threads on request) |
| Orifice | 1.6 / 2 / 2.5 / 3 / 4 mm (Kv 1.3 / 1.9 / 2.8 / 3.2 / 3.5) |
| Allowable Differential Pressure (I-1S Coil, DC/AC) | 1.6 mm 10/15, 2 mm 7/10, 2.5 mm 5/7, 3 mm 4/5, 4 mm 2/4 Kgf/cm² |
| Allowable Differential Pressure (H-WS Coil, DC/AC) | 1.6 mm 15/15, 2 mm 12/12, 2.5 mm 7/10, 3 mm 5/7, 4 mm 3/5 Kgf/cm² |
| Fluid Temperature | 75℃ |
| Coil | I-1S coil: AC24 V 5 W, AC110/120 V 5 W, AC220/240 V 5.5 W, DC12 V/DC24 V 6 W / H-WS coil: AC110 V/AC220 V 8 W, DC12 V/DC24 V 9 W |
| Sleeve | Stainless steel 303, 7000 sleeve |
| Approvals | UL, CE (valid for DC specifications only) |