*Adopting oil-free piston pump
*Clean-without pollution of oil and smoke
*Convenient-no need add oil to maintain daily
*Safe-no plus pressure during use
*No regorging-keep pressure when the machine stops, so the liquid won't flow backwards
*complete plastic panels, hand -switch and foot-switch for operating easily, Select negative pressure at will with no level for pressure adjustment, and overflow protection mechanism, safe and reliable.

Principle technical data:
Voltage: AC220V-50Hz
Max negative pressure value: >0.075mpa
Pumping rate: >18lL/min
Reservoir volume: >1000ml
Power: 90VA