Q:What flowmeter is installed after the pneumatic diaphragm pump?

The pressure decreases, the diaphragm moves slowly, and the flow decreases.This is not particularly accurate, because the diaphragm is not a metering pump, but the approximate flow can still be controlled.

Q:What's the submersible pump?What is a submersible pump, and what about it?

Not afraid of water, because it is placed in the water itself to cool themselves, you can use for a long time. The amount of water pumped and the height of the water now basically meets the needs of a small amount of individual and a large number of factories. This is the submersible pump, the water pump in the water. You can see.

Q:Why does the centrifugal pump start and close first when the outlet valve is closed?

The contact is burned out, the bond and so on the accident, therefore closes the outlet valve, starts the electric machinery, at this time the electric machinery belongs to the no-load current movement, greatly reduces the big current impact

Q:What is the series of pumps? What is the difference between a unipolar and a multilevel? What is the meaning of each "first class"?

A single-stage pump is a pump with only one impeller. 2, a multistage pump is a pump with two or more impellers. The multistage pump can increase the pressure and lift the head higher. Level 1 means a booster impeller.

Q:What are the failures and causes of the replacement of the fuel pump assembly?

Failure cause:1) the gasoline pump is too thick with the gasket at the junction of the axle box.2) pump film rupture or pump film and pump shell combination of sealing is not strict.3) the oil inlet valve is stuck or sealed badly.4) severe wear of the rocker arm, reducing the pump film stroke.5) the pipeline from the gasoline tank to the gasoline pump is not smooth, or the pump film spring passes.

Q:How many millimeters is the diameter of the water outlet of the four inch pump?

This question is of no practical significance. The user does not care about this figure. The concern should be the nominal diameter, which is fitted with flanges and pipes. Moreover, the pump shell is cast iron, the inside diameter is not processed, and there is no matching parts, there is only one manufacturing size.

Q:Water pump can not be pumped out, how to maintain water?

Packing overheating:Due to packing too tight, the cooling water can not enter the filler, or the shaft surface damage. Measures for proper relaxation of packing and cleaning of sealing pipe are adopted. Filler wear must be replaced with new ones. Before installation, soak in the oil and rotate it in turn. The incision should be staggered so that water leakage can be reduced. Fill the last lap after installed loading pressed to cover operation for further adjustment of the tightness.

Q:Do you have a suction pump higher than 9 meters?

Since the atmospheric pressure has been basically determined, the theoretical suction degree of the pump is more than 10 meters.

Q:There are 6 pumps, two indoor fire hydrant pumps, two spray pumps, two outdoor pumps, three units, one master and one spare control cabinet. From the control room to the control cabinet, is there only 3 lines or 9 lines?... How do I get it? Where does the hydrant line come from?

Indoor fire hydrant pump in addition to remote direct Kai, there are modules to start function, that is, on the cabinet to add control module, bus linkage pump, but also fire hydrant button, direct pumping function, a total of three functions.Outdoor fire hydrant pump in addition to remote direct Kai, but also an electric contact pressure meter detection system, water pressure from the pump and high pressure pump stop function.

Q:What is the difference between an air pump and a water pump?

Pump performance of technical parameters are flow, suction, lift, shaft power, water power, efficiency, etc.; according to the different principles of work can be divided into volume pumps, vane pumps and other types. Displacement pump is to use its studio volume changes to transfer energy; vane pump is to use the rotating blade and water interaction to transfer energy, there are centrifugal pumps, axial flow pumps and mixed flow pumps and other types.