Air Double Diaphragm Pump is a common industrial pump that delivers liquid through pneumatic. The characteristic of this pump is that an elastic diaphragm is set inside the pump body to separate the inlet and outlet, and the diaphragm is periodically vibrated by the action of compressed air to promote the flow of liquid.

Important parts:

1.Pump body: usually made of Plastic, Aluminum alloy, SS304&SS316, TEFLON,PVDF, it has corrosion resistance and pressure resistance, and can withstand the transportation of different media.

2. Diaphragm: Located inside the pump body, it is made of elastic material( Teflon, Santoprene, Hytrel, Viton) and can be completely isolated from the liquid to prevent leakage and contamination.

3. Inlet and outlet valves: Located on both sides of the pump body, the flow direction and speed of the liquid are adjusted by controlling the opening and closing of the valves.

4. Driving device: usually a pneumatic piston, which generates vibration by transmitting energy to the diaphragm to promote the flow of liquid.

working principle:

1.Suction process: When the membrane diaphragm pump starts to work, the inlet valve opens and the diaphragm vibrates backward, expanding the volume of the pump chamber. At this time, a negative pressure is formed in the inlet pipe, attracting liquid into the pump body.

2. Discharge process: When the diaphragm vibrates forward, the discharge valve opens, and the diaphragm pushes the liquid forward to discharge it into the outlet pipe.

3. Repeated cycles: As the driving device continues to work, the diaphragm vibrates periodically, causing the liquid to circulate and realize the transportation function.

product advantages:

1.Good self-priming ability: Since the diaphragm pump forms a negative pressure during its working process, it can well handle the gas and impurities in the sucked liquid and has good self-priming ability.

2. Low energy consumption: Compared with other types of pumps, diaphragm pumps usually have lower energy consumption, especially pneumatic diaphragm pumps.

3. Strong adaptability: It can transport various media, including corrosive liquids, high-viscosity liquids and solid particles.

4. Simple maintenance: Its structure is relatively simple, easy to maintain and clean, and parts are easy to replace.

5. Safe and reliable: Since the liquid is completely isolated from the driving device, the diaphragm pump can prevent leakage and cross-contamination, and has high safety and reliability.

Conclusion：

The pneumatic diaphragm pump is a multi-functional, high-efficiency, adaptable, safe and reliable industrial pump. It is widely used in liquid transportation, wastewater treatment, chemical processes and other fields in many industries.