check valves on air pumps?
Posted: Sun Nov 13, 2011 11:58 am
i discovered that my local store carries many check valves and i am inspired to make an air pump for the ones i buy always break.
i understand the way the pump plunger works but how does the check valve open under higher pressures? does the plunger have to poke it open or does it have to get extremely close?
i understand the way the pump plunger works but how does the check valve open under higher pressures? does the plunger have to poke it open or does it have to get extremely close?