ZCH series Gear Pump, made by cast lron, is applicable to gasoline, kerosene, diesel and gasohol with A type and B type inlets and Air Separator, By pass Valve , Check Valve, lnlet Filter are built in.Model: ZCH-50Speed900rpmFlow Rate45L/min to 55L/minVacuum≥0.06MPaNoise≤72dBWorking Pressure0.180.24MPaModel: ZCH-80 Speed900rpmFlow Rate75L/min to 85L/minVacuum≥0.06MPaNoise≤72dBWorking Pressure0.180.24MPa