ZJ150 roots vacuum pump

Summary：　　

　The Roots vacuum pump is also known as the mechanical booster which is a positive displacement type pump. It is one of the special pumps which can reach middle, high vacuum range. Its work principle is similar to the Root fan. Both of them used a pair of rotors, whose shape looks like 8, to achieve the suction and discharge process“Please refer to Work Principle of the Roots Pump.”

　　According to the techniques that the plenty of vapor and solvent is required to pump in the mechanical, pharmacy areas, we have improved the seal type of the bearing housing and gear box of the ZJ series Roots pump to reduce the emulsification of the pump oil efficiently and make the Roots pump more suitable to assemble with the water ring vacuum pump to suction more vapor and solvent.

　　For pumping of rubber has strong corrosive solvent conditions, we in the pump cavity and the bearing cavity around and shaft extension end at a total of five design of mechanical seal structure, referred to as "five mechanical seal", the mechanical seal of the flexible seal with the resistance to corrosion of the PTFE which completely eliminate the phenomenon of pump oil emulsion and completely closed the pump oil from diffusing into the pump cavity of the channel, so "five mechanical seal structure of the roots vacuum pump can be said is the true meaning of dry roots vacuum pump. If you want to use" five mechanical seal "the roots vacuum pump, please specify when ordering.