Submersible Water Pump, Sewage Pump with Base WQD7-10-0.75

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Ningbo
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Supply Capability:
5000 set/month

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Product Description:

Specifications

It's more compact,light on weight,easy for use.
It's suitable for home water supply,garden irrigation,building site,aquaculture


Application

Applying for building site ,hotel,restaurant,ship,mine,urban sewage,dejecta  discharge,garden and farm irrigation, it also can be used for transporting liquid feed for fishing aquaculture and transporting dilute paper pulp.

Materials

· Pump body:Cast iron

· Motor housing:Stainless steel

· Motor wire:Copper

· Impeller:cast iron

· Mechanical seal:Ceramic&Graphite

· Shaft:45#steel

· Bearing:China

· Insulation class:B

· Protection class:IP68


Electrical Data

Rated power:0.75KW

Rated voltage:220/380V

Mains frequency:50/60Hz



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Q:2 inches of water pump is generally equipped with high-power motors
Clean water pump 5.5 kw
Q:Submersible pump reverse impact on the pump
The pressure is too small, the current is too large, the operation time is too long will burn out the pump!
Q:Is there a water pump with its own flow regulating function?
It has a water pump with adjustable flow capacity, I used it. Can also landing professional production pump manufacturers web site inquiries.
Q:Relationship between power and flow of sewage pump
If you simply want a formula that satisfies your everyday application, the following will meet the requirement:N= y QH/1000,The severe gamma liquid, cattle - ETA / m3; efficiency; N- kW; H- head, power meters;Q- volume flow per cubic meter / second; divided by 1000 is the change of power W to kW;Attachment: gravity is the density of an object multiplied by gravity. Acceleration is expressed as a force in terms of the weight of a unit;The formula is applicable to situations where the calculation is not high and applicable to any liquid known or known to be heavy;The formula is reduced to three simplifications:1, ignoring the pump impeller, shaft and other friction losses;2, ignore the pump flow loss;3, ignore the pump pipe, as well as mechanical heat loss;As a result of the above three loss in the process, material, liquid delivery the same condition can be simplified as a coefficient, then adjust the ETA - efficiency coefficient, can satisfy the application value.The deduction principle of this formula is relatively simple, and the mechanical work of the pump is considered to be transferred to the mechanical energy of the liquid completely;That is, N= gamma QH, at this time, all the mechanical energy that water possesses;Electrical and mechanical energy conversion efficiency exists, then divided by the conversion efficiency ETA is obtained;N= y QH/1000;Special attention is needed. - though the efficiency represents the input electric energy and water energy ratio; but the relationship between the two have many effects, the structure of pump, pump body, liquid material feeding. If the above formula is used to estimate, it should be revised according to the actual situation.
Q:Two pumps automatically switch start control circuit,
Can add time delay relay, the key depends on how much time the water is full, if you design is automatic, it is better to use the triode reliable,
Q:Relationship between pump voltage and lift?
In the case of power, W=F*S. That is, the work done per unit time pump = the gravity of the water flow * the displacement of the waterIt can be seen that:1, the power is certain, the head and the flow is inversely proportional.2, the greater the power, the greater the product of the head and flow.Therefore, when the flow is minimum, the pump head is the maximum; when the head is the minimum, the flow is the maximum.
Q:What are the brands of air conditioning pumps?
Italy Calpeda CalpedaDaneWellerGermany KSBAmerican ITTCanton water pumpSouthern water pump
Q:Does the pump accessories have a shelf life?
No, they don't have a shelf life before and after the sale,Before selling, it is infinitely long, and there is no expiration date after the sale
Q:Pump impeller diameter plus assembly what changes? What's the effect on the motor?
1., the larger the diameter of the impeller, the greater the head, the greater the flow rate, because the flow of water depends on the speed of rotation of the impeller generated by the centrifugal force and the line speed on the tangent, the greater the diameter, the centrifugal force and the greater the speed of the line. The relationship between the centrifugal pump water delivery and the vacuum degree is that the centrifugal pump is the centrifugal force principle to complete pumping. Without water, the time and space turn will burn out the equipment.2., the head and impeller diameter is related, the larger the impeller, the greater the head, and vice versa. The flow rate has little to do with the impeller diameter. Under the rated conditions, the greater the head, the smaller the flow rate, inversely proportional.
Q:How to change the frequency of a water pump with a pump?
Only trip is not to the frequency converter settings or phase sequence change, if not moved the settings and wiring, most of the reason is the original reversal, you also know that inverter turnover also has water.Check analog positive and negative polarity, inverter settings, and if there is no problem, change the phase sequence.

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