WQD Series Waste Water Pump

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Loading Port:: Ningbo

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 35000台 unit/month

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Specifications

1.CE certificate
2.Aluminium/Stainless steel/PPO
3.Mechanical seal:Ceramic-Graphite
4.Suction strainer:Stainless steel

WQD 2'' electric pump

♦APPLICATION AREA

For usage of industry, agriculture, mine, building construction, environmental protection, fit for carry slurry, mortor, daily sanitary wastewater, and sewage containing flocks, papers,mud and sand and other solid particles. Also fit for dredging.

♦OPERATING LIMITS

Trans medium'sPH:4-10

Fluid temperature limit:<40°C

Max ambient temperature: :<40°C

Operating depth:5m

♦STRUCTION CHARACTERISTIS

Insulation class:E

Protection class;IP68

♦FEATURES

1. CE, GS certificate

2. 100% copper wire, automatic wiring

3. Cold-rolled silicon steel sheet, with high-speed punching, improve the efficiency and

precision.

4. CNC precision automatic lathe for smoother shaft.

5. Strict tests include water test, outgas test and performance test, ect.

6. Anti-rust treatment castings and electrophoresis.

7. 23-year experience, 1 year warranty.

Q: You'd better point out the details.... There are 2 best ways of experience and formulaCan you say a simple point, such as multi-stage pump, when the pump is higher than the motor, 30 wire is the next mouth how to do?: Alignment methods and requirements:1, check two feeler dial gauge or flange coupling the parallelism, usually with clearance between the both ends of the side instead of difference, in the circumferential direction every 900 measure, the maximum and minimum gap gap difference (Ab) less than or equal to 0.3 mm.2, the coupling flanges outside the park up and down, left and right four position to check whether they are in the same line, C less than or equal to 0.1 mm.When looking for a positive C, it will affect (a - b), finding the right (a - b) will affect the C, to balance each other. It's easier for an unskilled comrade to find C (a - b) first, and then find a positive one. Through the adjustment of the motor at the foot of the gasket thickness (Ab) and meet the requirements of C.Check the inlet and outlet piping before alignment. Make sure the weight of the inlet and outlet pipe does not exert force or torque on the pump. When looking for, should also pay attention to eliminate the pump rotor movement, so as to avoid the end gap error. If checked after the pump is working, it should be carried out under cold condition.It is important to draw attention to the fact that the pump set of the complete set of factory is only rough looking (checked with a ruler) when it is shipped. It may cause displacement when it is transported.

Q: What are the important parameters of the pump?: The head is the unit weight of liquid pump pumping from the inlet of the pump (pump inlet flange) to the outlet of the pump (pump outlet flange) energy value. Effective energy is a Newtonian liquid through the pump unit is obtained. The N m/N=m, the height of liquid column pumping liquid used, referred to as meters.Speed nThe speed is the number of revolutions per unit time of the pump shaft. It is indicated by the symbol n. The unit is r/min.Cavitation allowance NPSHCavitation margin, also called net positive suction head, is the main parameter to indicate the cavitation performance. The cavitation margin has been expressed by delta H at homePower and efficiencyThe power of water pump usually refers to the input power, that is, the power transferred by the prime mover to the pump shaft, so it is also called shaft power. It is expressed by P;The effective power of the pump, also known as the output power, is expressed in Pe. It is the effective energy obtained by pumping the liquid out of the pump in unit time

Q: There are second cutting, third cutting, why three times?: So some pumps are written in the back of XXXX-125A or B, that is, the impeller nominal diameter is 125, A is through a cut, B is the 2 cutting. To reach the applicable conditions, only the calculation is not enough, but also after cutting to test to determine.

Q: What's the meaning of the pump head in the water pump, please advise, thank you: The pump head of the centrifugal pump refers to the shell that contains the impeller and impeller, and also includes the shaft part that drives the impeller. It can be used as the part of the motor and shaft coupling and the base.

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: Harm of air pump and pump: Centrifugal pump situationEmpty pump is divided into two kinds, if there is no liquid, then it will cause the mechanical seal of the pump to overheat, wear and even die

Q: Why is the flow of the pump too small will occur cavitation phenomenon?: Throttling regulation is to change the opening of the valve to change the flow of the pump, that is to say, to change the characteristic curve of the pipeline. The commonly used to regulate the flow of exports, because the entrance throttle makes reduce the inlet pressure caused by cavitation danger.

Q: If the calculation of the required pump flow is 45, lift 110, and the actual pump flow 100, head 125, what will happen in operation? Can I use it properly?: Centrifugal pumps are too big to measure.There is a reason why the centrifugal pump does not measure up:The pump inlet pipe blockage, leakage.The pump inlet pressure is too low.

Q: Why does the centrifugal pump start with a closed valve and the axial pump starts with an opening valve?: Centrifugal pumps require a vacuum to produce negative pressure, which allows atmospheric pressure to lift the water surfaceAxial flow pump impeller is thrust on water

Q: What are the failures and causes of the replacement of the fuel pump assembly?: Gasoline pump is the gasoline from the gasoline tank suction and the gasoline tank has a certain pressure, thereby, it overcome the resistance of the pipeline, pipeline and fuel filter into the carburetor float chamber or electronically controlled injection engine in the guide frame.

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