Manual Vacuum Air Pump

    Product Name:  Manual Vacuum Air Pump
    Model NO.:  PM036
Hand hold Air Pump
Application
For high school experiments
Structure
Air inlet
Air outlet
Outlet valve film
Spring
Piston cover
Valve pole sealing circle
Outer valve pole
Outer cylinder
valve sealing circle
supporter
How to use and maintain:
Choose the air inlet or outlet for experiments. Use a hand or foot to make the valve move back and forth.
Due to aging of the sealing circles, they should be changed at intervals.
Spare parts
One valve sealing circle
Two valve pole sealing circles
Two air outlet valve films