Series ZJ/ZJP roots vacuum pumps (low noise),These vacuum systems can get higher vacuum, a stable, fairly high ... vacuum pump). The Roots pumps are widely used in vacuum moulding, vacuum smelting, vacuum gas pumping, vacuum coating industry, vacuum distilling and vacuum ... diametermmmotor power(kw)weigh(Kg)recommended backing vacuum pumphPaTorrinletoutletZJP-703X10-42X10-4704080501.11202H-15ZJP-150B3X10 ...