The cause of the problem for pipeline centrifugal pump

1, pipeline centrifugal pump export no pressure, pumping speed slow. This kind of phenomenon generally has the following several ways:

(1) pipeline centrifugal pump air pressure decreases. First take a look at the inlet pressure gauge pressure, pressure value in 4 ~ 7 kg is normal. Then check that the air supply valve opening position, such as gas source is open and close with solenoid valve, check whether there is any breakage on electromagnetic valve plastic valve plates, plastic valve plates can not fully open.

(2) pipeline centrifugal pump silencer jams, gas discharge, fast enough to cause pumping speed slow.

(3) compressed air pipeline centrifugal pump water or too many impurities. After entering the diaphragm pump with valve plug into the hole, or stuck with valve core.

(4) is a high-pressure air from top to bottom end cover, due to the time of often damaged by the impact of valve core has resulted in the valve leakage.

(5) is inside the pump axis four ring wear and mixes up.

2, flow decreases. This kind of phenomenon generally has the following several ways,

(1) import and export pipeline centrifugal pump check valve (plastic) wear smaller. Or there are strings, larger particles stuck plastic balls. Lead to suck the discharging mouth when the material liquid injection, discharge the materials from the inlet pressure again. (2) pipeline centrifugal pump diaphragm often time tensile deformation, cause material cavity volume has shrunk.

(3) black, thick layer of the membrane damage. When axial lead does not reach the designated position.

3, pipeline centrifugal pump. This phenomenon may be in several ways.

(1) the valve core serious wear and tear.

(2) the central axis of the bushing wear. At this time should be replaced copper sleeve.

(3) axial ends of the screw fall off.

(4) two layers of diaphragm rupture.

(5) the diaphragm pump inversion or flat. Can't return valve core (the first generation and second generation)

4, material there are impurities or oil. This is usually caused by diaphragm rupture.

5, import and export of material leakage.

One is screw fastening, the other is tee deformation or damage of o-rings, three was no on both ends of the pump shell hole location and tilt, lead to two discharging mouth or feeding mouth, not in the same plane.