The pneumatic diaphragm pump is weak and the casing speed slows down

This kind of situation generally has the following types,

First, the standard air pressure of pneumatic valve is reduced. First look at the working pressure of the air inlet barometer, the working pressure value of 4-7kg is normal. Then check the opening position of the pneumatic valve gate valve. If the pneumatic valve is opened and closed by a relay, check whether the relay plastic pump shell is damaged, resulting in the plastic pump shell can not be completely opened.

Second, the muffler is blocked, so the air can not be discharged quickly, resulting in the slow down of the casing speed.

Third, there is more water or residue compressed by air. After entering the valve chamber of the diaphragm pump, the piston rod and the small guide slide block are damaged and blocked, and all the normal repeated movements are normal.

Fourth, the valve cover of the valve chamber often suffers from the impact of the standard air pressure, resulting in the leakage of the valve cover gasket.

Fifthly, the sealing ring of the inner rear shaft of the pump is damaged and the air is blocked. Total flow reduction

This kind of situation generally includes the following types,

First, import and export trade, the product (gate valve ball seat) damage reduced. Or a strip of material, large particles block the ball. When the material is sucked, the material liquid geothermal well at the feed hole presses the raw material back from the feed hole.

The second is that the diaphragm is constantly stretched and deformed, resulting in the reduction of the volume of the raw material cavity.

Third, deep blue, the thick layer of pulse damper is damaged. The rear axle does not move in time. The pump didn't move

There are likely to be several.

One is that the piston rod and V-ring in the valve chamber are seriously damaged and stuck.

Second, the coupling of the rear axle is damaged, so the coupling should be removed and replaced.

Third, the pin on both sides of the pump shaft was damaged.

Fourth, the double-layer pulse damper is cracked.

Fifth, the diaphragm pump is reversed or placed. There are residues or oil stains in the raw materials

This kind of pump is usually caused by the rupture of the diaphragm pump pulse damper. If you find the situation, immediately turn off the pump air inlet source, stop working and replace the pulse damper（ Professionals suggest that when transporting volatiles, inflammables and strong corrosive liquid, the pulse damper should be removed and replaced on time under the proposal of the manufacturer or technical engineer, so as to prevent environmental pollution and redundant damage, and ensure the long-term good working environment of diaphragm pump).