Questions about pneumatic diaphragm pumps
Thread Content
Our factory purchased two pneumatic diaphragm pumps at once; one of them worked perfectly, while the other has been repaired numerous times. Currently, it has two main problems: 1. The flow rate of liquid output does not reach the specified value – it seems to be less than even a quarter of that amount. It’s obvious that there is no liquid flowing through the channel on the pump’s inlet side； 2. Unharmonious pauses often occur during operation, giving a feeling of sluggish performance. I would appreciate the guidance from all the experts here
1. Check if it’s a problem with the valve; try replacing it with another one. 2. If there is no problem with the valve, check the check valves at the inlet and outlet
The air passage inside the pump is not unobstructed, right? ? The main air valve has small holes, very tiny ones; check to see if they are blocked. There is a sliding bearing on the rod in the diaphragm, usually made of brass; check for any wear. There is a small ejector pin behind the diaphragm, which may be bent.
Inspect the valve, check valve, and diaphragm.
Can diaphragm pumps transport materials containing solid catalysts? The required head is 350m! ! If you have any good suggestions, please recommend them: handshake
You can take a look at the hydraulic diaphragm pump
Hehe, electric piston diaphragm pumps can be used, but the temperature of the medium needs to be taken into consideration; we use German EMMERICH electric piston diaphragm pumps
It was never taken apart to the point of reaching the airway. Our pump is used to pump dimethylamine liquid in underground tanks. We believe that the poor insulation in the section of the pipeline at the pump’s inlet may be causing gas to enter, and since the pressure inside the tank is low, we increased the pressure inside the tank; as a result, both channels have become unobstructed. Nevertheless, the pump still seems to operate with difficulty.
Start with the basic steps: check the diaphragm