Pub time: 2019-9-18 Views: 597
Vacuum pump is a kind of revolving variable capacity. It needs the cooperation of the front pump to use in a wide pressure range with a larger pumping speed. It is insensitive to dust and steam contained in the extracted gas. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.
(1) There is a large pumping speed in a wide pressure range.
(2) The rotor has good geometric symmetry, so it has sm...