Pneumatic diaphragm pump common problems and maintenance methods

Pneumatic diaphragm pump common problems and maintenance methods

Pneumatic diaphragm pump common problems and maintenance methods, customer friends do you know? The following by the pneumatic diaphragm pump manufacturer's technical staff to explain to you, I hope to help you.

1. The pump is weak and the pumping speed is slow.

This phenomenon generally has the following circumstances, one is the reduction of air pressure source. First look at the pressure of the intake pressure gauge, the pressure value of 4 ~ 7 kg is normal. Then check the opening position of the air source valve. If the air source is opened and closed with the solenoid valve, check whether the plastic valve disc of the solenoid valve is damaged, resulting in the plastic valve disc can not be fully opened. Second, the muffler is blocked, the gas can not be quickly discharged, resulting in slow pumping speed. Three is the compressed air of water or impurities too much. Plug the inlet hole after entering the diaphragm pump valve, or jam the valve core. Fourth, the upper and lower end covers of the distribution valve are damaged and leaky due to the impact of the spool at regular times. Five is the pump internal shaft four sealing rings wear and gas.

2, the flow is reduced. This phenomenon generally has the following circumstances, one is the import and export check valve (plastic ball) wear smaller. Or there are strips, large particles stuck in plastic balls. It leads to the recharging of the material liquid at the discharge port when the material is sucked, and the material is pressed back from the feed port when the material is discharged. Second, the diaphragm is often stretched deformation, resulting in the material cavity volume smaller. Three is black, the thick layer of diaphragm is broken. The central shaft drive is not in place.

3, the pump does not move. There are several possible scenarios for this phenomenon. First, the spool is seriously worn and stuck. Second, the shaft sleeve wear of the central shaft. At this time, replace the copper sleeve. Three is the two ends of the shaft screw drop. Four, both diaphragms are broken. Five is the diaphragm pump inverted or flat. Spool not relocatable (first and second generation)

4. There are impurities or oil stains in the material. This is usually caused by a diaphragm rupture.

5, import and export leakage material. One is that the screw is not fastened, the other is that the ball seat is deformed or the O-ring is damaged, and the third is that the pump housing at both ends is not tilted against the upper hole position, resulting in the two discharge ports or feed ports are not in the same plane.

The above is about the pneumatic diaphragm pump common problems and maintenance methods of all content, if there is anything you do not know where you can directly communicate with our customer service, we wholeheartedly for your service.