The 131 Series is a normally closed 3/2-way direct operated solenoid valve that stays closed when the coil is de-energized. It has a brass body with 1/8" to 1/4" ports and is used for dry or lubricated air, neutral gases and liquids.


| Working Fluid | Dry or lubricated air / neutral gases / liquids |
| Actuation Type | Direct operated, 3/2-way normally closed |
| Body Material | Brass |
| Port Size | 1/8" to 1/4" BSP |
| Orifice Size | 1 to 4.5 mm |
| Operating Pressure Differential | 0 to 30 bar (MOPD) |
| Fluid Temperature | -40 to 140 °C |
| Ambient Operating Temperature | -40 to 50 °C |
| Seat Material | FKM / PUR / Ruby |