2H Rotary Piston Vacuum Pump

chinacoal05www.chinacoalintl.comm.chinacoalintl.comwe provide service of enterprise's customs declaration, inspection.Product Introduction2H Rotary piston vacuum pump is suitable for air and other ordinary gases, with a gas ballast valve, witch could be applied to pump condensable gases (such as vapor). The pump should be equipped with appropriate accessories if the gas pumped has the following features, such as rich in oxygen, explosive, corrosive to ferrous metal and