JOCH JZJW Series Roots Reciprocating Vacuum Unit

This vacuum unit is composed of ZJ series Roots pumps as the main pump or intermediate pump, connected in series with WLW type vertical oil-free vacuum pumps as the fore pump. As the WLW pump adopts oil-free lubrication, a clean vacuum environment can be obtained. Therefore, useful gases can be recovered after installing an exhaust gas collection device, while avoiding the large amount of wastewater discharge generated by liquid ring units. However, it is not suitable for pumping corrosive gases or gases containing particulate dust.