Piston vacuum pump

Piston vacuum pump working principle, piston vacuum pump selection and other information. Piston vacuum pump is a reciprocating vacuum pump. It relies on the reciprocating motion of the piston to make the working volume of the pump cavity (cylinder) periodically change to pump air. When working, the suction pipe is vacuumed and the exhaust pipe passes through the atmosphere. Piston vacuum pump pumping capacity is large, pumping rate range is 45-20,000 cubic meters per hour, single-stage pump limit pressure is about 103 Pa, two-stage pump can reach 1 Pa. Piston vacuum pump can be used in vacuum distillation, vacuum concentration, vacuum crystallization, vacuum filtration, vacuum drying and concrete vacuum operation. If a condenser is installed at the suction port of a piston vacuum pump, the gas containing water vapor can be extracted; if a filter is installed, the gas containing dust can be extracted.2BV_series_Liquid_ring_vacuum_pump

Piston vacuum pumps are divided into dry and wet ones. Dry pumps can only pump gas, and wet pumps can draw gas and liquid mixture. There is no principle difference in the structure between the two, but the dead space and valve mechanism of the wet pump is larger than the dry pump, so the limit pressure of the wet pump is higher than the dry pump. Piston vacuum pump has two types of horizontal and vertical (domestic W and WL). Vertical pumps are more advanced in structure and performance. They are upgrading products of horizontal pumps.Molecular_Pump