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3. Air Pump ( Bicycle Pump)
❖An air pump is a device commonly used for filling air in
tubes inside bicycle tyres, balloons and football or volleyball
bladders.
Construction;
It consists three parts. They are, a plastic barrel,
Piston and nozzle.
There are two valves in a bicycle pump. They are
Inlet valve(V1) and outlet valve(V2). When one
Valve opens, another remains closed.
July 30, 2020 Taranath Baral/GC Shiba/Suraj Thapaliya 59
