... refrigeration Refcomp semi-hermetic screw compressor(Itlay brand Refcomp semi-hermetic screw compressor which are made in china, ... 3/60HZ),suction shut-off valve,discharge shut-off valve,intergrated check valve,intergrated safety relief valve, connection for oil injection ... -vibration dampersOil return line kit provide with:Solenoid valve,replaceable cartridge type filter,flow-switch,sight glass, ...