QBY cast iron pneumatic diaphragm pump is easy to use and works well. Simply open and close the gas valve to start and stop. Even if the pump runs for a long time without medium or suddenly stops due to unexpected situations, it will not be damaged-- Once overloaded, the pump will automatically shut down, with self-protection performance. When the load returns to normal, it can automatically start and run again.
Working principle of QBY cast iron pneumatic diaphragm pump:
In the two symmetrical working chambers of the diaphragm pump, each is equipped with an elastic diaphragm 6. The connecting rod forms the two diaphragms into a body, and compressed air enters the distribution valve 3 from the inlet joint 1 of the pump, pushing the diaphragms in the two working chambers and driving the two diaphragms connected by the connecting rod to move synchronously. At the same time, the gas in the working chamber is discharged out of the pump from behind the diaphragm- Once reaching the end of the journey. The valve mechanism automatically introduces compressed air into another working chamber, pushing the diaphragm in the opposite direction
Directional motion creates synchronous reciprocating motion between two diaphragms. Each working chamber is equipped with two one-way ball valves 4. The reciprocating motion of the diaphragm causes a change in the volume of the working chamber, forcing the two one-way ball valves to alternately open and close, thereby continuously sucking and discharging liquid.
