... MediumAir,Water,Oil,gasOperationDirect ActingActing Type2w/2s---Normally Closed,2wh/wsh---Normally OpenOrifice Size(mm)2.52.54.01.21.22.0CV ... PressureNormally Closed:0~0.7Mpa ,Normally Open:0~2.0MpaMax. Pressure Resistance1.0Mpa,2.0MpaOperating TemperatureNBR for -5 ~80°C and VITON ... STAINLESS STEELMaterial of Oil Seal 2S025-08 1/4'' Ports 2.5mm bore Normal Cleased 2S Small Water Solenoid Valve