Submersible Sewage Pump WQ Series

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Product Description:

ADVANTAGE:
<1>Electrical motor:

High-performance water-resisting squirrel-cage-type motor, Class H stator winding (≤180°C) and longer service life. IP68 protecting class, inserting heat sensor for each phase of stator winding. Direct starting for 3 kW or 3 kW below, ?starting, reduced voltage starting or soft starting for 4kW or 4 kW above.      
Electrical motor also applies to other voltage and frequency.
Fire proof motor conforming to international standard and applying to dangerous occasion is optional, for example dIIBT4etc.

<2>Shaft bearing :
Service free upper/lower shaft bearing is designed as 50000 hours service life, and assembly of temperature probe according to requirement is allowable.

<3>Cooling system:
Cooling system is divided into open-type circulation and cooling system and close-type circulation and cooling system, which ensures normal operation of motor below/above level surface.
Open-type circulation and cooling system: Pumps parts of liquid and circulates it from back side of impeller to clearance between tube cooler and casing to remove heat generated by motor, provided with excellent flow property and performance avoiding blockage  Close-type circulation and cooling system: Eliminate heat with build-in rotating wheel, which is provided with performance of blockage-less and service-less.

<4>Sealing:
Separate motor and pump with two layers of mechanical seal, which provides motor with diplex protection.Mechanical seal material at side of pump adopts tungsten carbide/tungsten carbide and it at side of motor adopts graphitetungsten carbide. Special device and spiral seal groove at backside of impeller provide the unit with long-period and Effective protection without enwinding.

<5>Shaft :
The unit adopts coaxial and shorter-overhang design, which depresses interference of shaft, reduces vibration, depresses noise and prolongs service life of mechanical seal and shaft bearing.

<6>Impeller:
Adopts CFD optimizing design, which transports liquid in perfect flow, speed and maximal efficiency without blockage. User could select impeller model as eddy flow, single channel, duel channel, or multi-impeller according to difference of
pumped medium.

<7>Cable seal:
Separated sealing connection box. Adopt waterproofing and sealing cable,  and  provide  inlet wire with  anti-tension  and anti-wind protection.

<8>Monitoring system:
Equip each phase of motor with temperature sensor that sends out alarm signal ands shut down power supply automatically if motor suffers from overheat.
Optionally equip upper/lower shaft bearing (s) with temperature sensor that sends out alarm signal ands shut down power supply automatically if motor suffers from overheat.Sealing monitoring device is used for monitoring if water immerges into oil chamber from shaft seal. In addition, there is set with individual sensor in motor chamber and connection chamber of motor of 30kW above, which should perform early warning if leakage occurred.


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Q:Water pump maximum flow and standard flow?
The parameter standard of the pump factory is determined by its efficiency, that is, the efficiency of the pump is highest at that point. All parameters have two curves, that is, a flow curve and an efficiency curve. You can according to your standard flow, see how much the efficiency of the point, the maximum flow efficiency is how much will know.
Q:What RPM is required to operate a car water pump?
Mechanical water pumps will move water with any rotation, provided it's a sealed system and there are no obstructions. The flow rate will be determined by the RPM of the water pump. This is proportional to the pulley sizes of the drive pulley to the water pump pulley. 600 RPM for a water pump at idle is sufficient for the cooling system design and the engine heat load at idle. Without knowing the specifics of your application, it would be hard to tell how fast you would need to pedal.
Q:What is a variable frequency water pump? What's the difference between a variable frequency pump and an ordinary pump?
In fact, the key to this problem is to figure out what is frequency conversion, why frequency conversion, know this problem, we can easily understand the difference between frequency converter pump and ordinary water pump.We often say that the frequency is a frequency conversion process of the motor, the frequency of the motor to change the motor speed, so as to achieve the water pump flow head technology parameters are adjusted to control the role of.Variable frequency water pump refers to the motor, variable frequency pump should be driven by variable frequency motor pumpFrequency conversion, that is, adjustable frequency, frequency conversion motor is able to adjust the speed, adjust the flow, to achieve the purpose of energy saving, but also start small current, maintenance advantages of small workload.Ordinary water pump is to use ordinary motors to drive water pump rotation, that is called the power frequency motor. Our daily use frequency 50Hz, can not speed. Water pump adjustment flow through the valve throttling to achieve the same, so it is not energy-saving. The fear of harm in Wei Di apps
Q:how do you fix a washing machine water pump?
Can you tell us what brand? They do NOT make them all the same either in placement, access, or attachment.... So to be able to help you properly, we need MORE INFO, PLEASE!!!!
Q:Why won't our well water pump turn off? ?
Should be a valve on your pressure tank. That is what you turn off or the sheer volume of water in it will keep water flowing until it empties out.
Q:Why is the minimum liquid temperature allowed at 2 DEG C instead of 0?
Is zero freezing?
Q:What is the average life of a water pump?
to many factors to consider such as: materials used for pump, pump design, the engine operator's driving habits. You could have had the wrong belt put on and that would effect pump life. There are just to many variables. I'd say over 60,000 easy. Most pumps come with LLT Warranties b/c you should only have to replace one once.
Q:Having problems removing water pump on 1996 3800 series ii motor someone please give me correct instructions ?
to get the water pump out you need to remove the water pump pulley first it has four 10 mm bolts (I have seem them with 8 mm bolt with a large shoulder on them too ) you can break the bolts loose one of 2 ways 1) put a long screwdriver between the two of the bolt to hold the pulley in place while u break one loose then spin the pulley around rinse and repeat once there all loose u can turn them out by hand and pull off the pulley some time u have to give the pully a little tap to come off you shouldn't need to take off the motor mount unless u plan on chaging the serpintine belt ? be sure once you get the pump off you clean the block side of the surface really good with a scraper make sure u get all the old gasket off the block side so it will seal right when u install the new pump I also recommend a tube of ultra black rtv sealant and only black I have used blue silicone before on many occasion and it has failed me I only use black rtv plus it makes it a lot easier if you have to replace the pump in the future as it come off a little easyier hope this helps a little good luck may the car gods be with you also I would recommend doing a back flush with warm or hot water and using the old school green antifreeze either full or 50/50 mix Dexcool orange has a very well know issue of eating gaskets and putting engine into a vapor lock very costly to fix
Q:Explore the flow of water pump production process is like?
The main flow of water pump (take centrifugal pump as an example):Technical determination of Drawing > raw material storage > mold preparation > casting moulding > machining > parts experiment > Assembly > performance experiment > painting packing > storage.Here are a few key steps:1) the technique determines the graphMainly the work of designers. Generally according to the parameters of the pump (flow, lift, cavitation, efficiency, etc.) to determine the specific speed of pumps, impeller form, impeller size, impeller material, pump body, pump shaft and so on. One of the most important thing is to draw the impeller woodenpatterns.2) die preparationThe mold is mainly composed of workers according to the water pump impeller woodenpatterns production model.3) casting moldingThe casting molding sand is made on the base of the mould.4) machiningWater pump parts processing, because it has hydraulic flow channel, in considering the positioning clamping standard, must find the correct flow channel of the correct position. Avoid assembly, resulting in water pressure chamber and impeller flow channel skew, dislocation, uneven gap, or even rub, affecting product quality. In order to ensure the accuracy of parts manufacturing, it is necessary to design the appropriate tooling, and reasonable arrangements for technological processes, control process factors.
Q:How to change the frequency of a water pump with a pump?
I have encountered this problem, 1, check the reverse pump outlet single flow valve is damaged2. Check whether the three wires of the motor are in wrong position and reverse when starting

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