Q:What are the differences between the sewage pump and the clean water pump?

The main difference between the sewage pump and the clean water pump is that:Impeller and runner design, as well as other parts of the configuration are very different.1., in order to prevent clogging of sewage pump, the main design of large flow channel, so naturally lead to relatively low efficiency, so the head is generally not high. Clear water pump flow smaller, smaller clearance, the head is relatively high.

Q:What's the word "pump"? Is that what advocates mean?RT

What is a "fan"?In recent years, the term "fan" often appears on the newspaper Web page, whether it is a team, a singer, a sports car and a toilet, all of which have their own fans

Q:Working principle and diagram of axial piston pump with pressure compensation variable

Working principleThe main part (see section structure) the transmission shaft drives the rotating cylinder, the plunger seven uniform distribution on the cylinder to rotate around the shaft center line through the center of the spring will be slippery boots column components in the variable pressure in the head (or swash plate). In this way, with the rotation of the plunger cylinder for reciprocating motion complete, oil absorption and oil pressure action.

Q:What is the displacement of the pump? Flow? What is the volume efficiency and mechanical efficiency of the pump?

Mechanical efficiency: the ratio of theoretical torque to actual torque of the pump.

Q:What are the internal losses in centrifugal pumps? How did they come about?

Hydraulic loss: the loss of water by friction, eddy, impact, etc in a flow;

Q:How accurate is the metering pump?

In addition, when the oil supply is too large or the pipeline pressure rises unexpectedly, the volume of the liquid in the hydraulic chamber can be changed, thereby affecting the stability of the flow and reducing the metering accuracy of the pump. In order to solve the problem of how to stabilize the measurement accuracy of metering pump metering pump flow, how stable, the three valve device. The so-called actual refers to the combination of three functions including compensation, discharge and safety protection device or device supporting the hydraulic chamber, according to its action principle is different, is divided into automatic compensation and forced compensation two three valve device.

Q:Why can the centrifugal pump hold down the pressure?

The centrifugal pump can hold pressure because of the suction pipe in the pump at the entrance of a non-return valve (valve).

Q:What are the ways of hydraulic pumps?

There are several ways:Direct flow mode, such as external gear pump;Port plate, such as vane pump, axial piston pump, etc.;

Q:How to maintain and repair the booster pump of pipeline pump?

4. install "0" ring, tighten the pump body and motor end cover with bolts. Notice that the clearance between the front cover of the impeller and the pump body is 20. 0.5 mm. The impeller inlet, the outer ring and the pump body ensure a certain running clearance.5. the disassembly order is the opposite.

Q:Filter backwash pump for what use, what is the principle of work ah?

But the reverse cleaning can not completely regenerate the filter medium, or there will be some impurities remain, when the regeneration of residual impurities (pressure drop) to set the value, you need to replace the filter (filter media).