Poppet Type Solenoid Valves, Normally Open, Pilot Operated, Free Reverse Flow. A screw-in cartridge, solenoid operated, 2 way, 2 position, normally open, pilot operated, poppet type intended for use as a unidirectional blocking or load holding device in hydraulic circuits requiring low internal leakage. Features:Push type manual override button, protected by rubber capFree reverse flowLeak tight designLow pressure dropWet armature constructionStandard Water/Weather resistant coils rated up to IP69KWide voltage rangeCoils are rated for continuous duty operationWide variety of voltages and molded-in connectorsCartridges are voltage interchangeableManual overrides available on all modelsHardened poppet to ensure Minimal wear and extend service lifeOne piece body design Minimizes the effects of eccentricityAll exposed cartridge surfaces are zinc-plated to resist corrosionIndustry common cavity-compact size