1. Motor drive: the negative pressure pump is operated on a miniature engine, which operates the internal mechanical eccentric movement. The eccentric movement guides the internal alternative movement of the diaphragm.
2. Operating principle: compress the air with a fixed volume in the pump chamber (closed compression suction door, light positive pressure open on the drain door), lengthen (closed compression unloading port, open -handed aspiration aspiration door). Under a pressure difference, the air pressure (aspiration) enters the pump chamber and is downloaded from the drain door.
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4 Equipped with a bracket for easy fixing.
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Technical technical specifications:
: empty pump
Operating voltage: DC9V-14V
Nominal voltage: DC 12V
Nominal current: 500ma
Nominal power: 6W
Aspiration: 5L/min
Degree of emptiness: 65kpa
Maximum pressure: 120kpa
Noise:

How to use:
Suitable for tubes 4.5-6 mm. The maximum external diameter is 6.5 mm.

Packing list:
1 empty pump