Common Faults and Solutions of Lutz Pneumatic Double Diaphragm Pump

     Lutz pneumatic double diaphragm pump is now more widely used to be accepted by the public. In many companies such as chemical industry, spraying, ceramics and other factories have many diaphragm pumps. Diaphragm pump can be broadly divided into two categories, one is the electric diaphragm pump, one is the pneumatic diaphragm pump. And pneumatic diaphragm pump is applied most. So here I am going to talk about the maintenance of pneumatic diaphragm pump experience. Hope that the majority of equipment maintenance staff helpful. And I hope this article will play a valuable role. Let everyone come together to explore together to improve.

　　

Frequently Asked Questions for Lutz Pneumatic Dual Diaphragm Pumps: 1. Poor pump, pumping speed slower. This phenomenon generally have the following situations, one gas pressure reduction. Take a look at the pressure of the inlet pressure gauge, the pressure value of 4 to 7 kg for normal. Then check the position of the gas valve opening, such as the gas source is opened and closed solenoid valve, then check the solenoid valve plastic valve is damaged, resulting in plastic valve can not be fully open. Second, silencer blockage, gas can not be quickly discharged, resulting in slow pumping speed. Third, compressed air, water or impurities too much. Into the diaphragm pump valve blockage after the intake, or stuck with valve. Fourth, with the upper and lower end caps with valve due to the impact of the valve spool often lead to damaged valve cover leakage. Five is the pump inner four ring seal wear and tear.

　　

2. Traffic reduction. This phenomenon generally have the following situations, one import and export one-way valve (plastic ball) wear smaller. Or a bar, large particles stuck plastic ball. As a result, when the material is discharged from the material discharge port, the liquid material is recharged again and the materials are pressed back from the material supply port. Second, diaphragm diaphragms often stretch the deformation, resulting in smaller volume of the material chamber. Third, black, thick layer of membrane damage. Axis driven not go in place.

　　

The pump does not move. There may be several cases of this phenomenon. First, the valve core serious wear stuck. Second, the shaft sleeve wear. At this point should be replaced copper sleeve. Third, both ends of the shaft screw fall. Fourth, both layers of the diaphragm are broken. Five is the diaphragm pump upside down or flat. Spool can not be reversed (first and second generation)

　　

4 material inside impurities or oil. This is generally caused by rupture of the diaphragm.

　　

5 import and export leakage. First, the screw is not fastened, the second is the ball seat deformation or O-ring damage, and third, the pump casing is not on both sides of the hole tilt, resulting in two discharge port or feed port is not in the same plane.

　　

The Lutz Pneumatic Double Diaphragm Pump has the ability to deliver smoothly and safely a number of key materials and is also suitable for use in highly corrosive liquids, abrasive materials, flammable liquids, and many highly viscous materials.

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