the reciprocating vacuum pump has the features: 1.obtain rough vacuum. 2.for the purpose of industrial. 3.high pumping speed.

W series reciprocating vacuum pumps (Piston vacuum pump) is one of the main

equipment gaining rough vacuum, used for evacuating air in a sealed vessel.It widely used in

the chemical and food industries, and is particularly suitable for pumping gases in the

v acuum distiling,vaporizeing,dipping,concentrating,crystal,drying and filtering.