• QZB series Submersible Axial/Mixed Flow Pump System 1
QZB series Submersible Axial/Mixed Flow Pump

QZB series Submersible Axial/Mixed Flow Pump

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
-
Supply Capability:
99 units unit/month

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Type description

Take 350QZB-50 as an example

350: the nominal diameter of the pump

Q: submersible

Z: axial flow

B: semi-adjustable blade

50: 1/10 of the pump specific speed (take the integer part)

According to different pump specific speeds, the flow capacity range of this type of axial flow pump can reach up to 700m3-1400 m3

The principle of Axial flow pump is to lifting water according to the thrust caused by the impeller when rotating. Because water moves along the axial in the impeller, so we called it axial flow pump.

In accordance with its mode of installation, axial flow pump can be distinguished into three class: vertical, horizontal, inclined. Their structures are almost the same. Now the vertical form is used widely. The main accessories contains bell-mouthed pipe, impeller, guide blade, outlet syphon, shaft and bearing, stuffing box, etc.

Summarize of QZ series Axial flow pump:

Installation of water flow Channel: in terms of recommended sample installation diagram

The form of water exit: flap valve or other ways

Installation ways: suspended by bent pipe; suspended in well casing, etc.

Motor

Submersible motor

Power Level: electrical performance conforms to GB756

Protection level: IP68

Cooling method: ICW08A41

Basic installation form: IM3013

Voltage grade: ≤355kw, voltage,380v/660v; 355kw,voltage, 380v, 660v, 6000v, 10000v

Insulation level: F

Rated frequency: 50Hz

Length of cable: 10m

Shaft seal

There are two or three stages of mechanical seal. The first stage called carborundum (directly contact with water). The second and third stage called graphite and carborundum.

Leak proof Equipment

QZ, QH series pump have been equipped with leak proof sensors. When the oil tank, the inner part of motor or the junction box has been leaked by water, the sensor will signal or made the motor shut down, and retain the malfunction signal.

Over heating protection system

A overheating protection device is fastened on the motor winding. When the temperature exceeds the stated &#118alue, the device will signal or made the motor shut down.

Rotation direction:

Seen from the top of the motor, the impeller is rotating clock wisely.

Application

QZ series axial flow pump, QH series mixed-flow pump is widely used in industry and agriculture water lifting, urban water supply, light polluted water discharge and other water transfer project.

Working condition

Clean water with the temperature no more than 50 or some liquids that are similar to water.


Q:I am trying to replace my old water pump with a new one. I have the quot;special tooland everything but i just cant get the water pump to come loose at all. Any suggestions would be helpful Thanks
When you mean it wont come loose, do you mean you cant break the bolts loose or is the pump stuck on the motor like glue? If the bolts are stuck, try spray them with penetrating oil and let it work in for about 30 mins. If the pump is stuck, use a narrow putty knif, gently tap in between the pump and the block, and pry it off, then clean the mating surface completely to ensure the new pump seals properly.
Q:Okay heres the deal Its knockin and I tthink the water pump is going would this be a cause of this and when it heats up it knocks but when its cold it doesnt knock also once it gets hot it shuts off and starts to smoke what could this be is it maybe the waterpump when I try to re start the car after it shuts it self off it only just clicks wount turn over thanks
I'm sorry to tell you, but from your description it sounds as if you have major internal engine damage. A water pump just won't cause the symptoms you are describing. I'd have to say your engine is close to seizing up entirely - the knocking sounds like rod knock in the bottom end of the motor.
Q:can you replace a water pump gasket without replacing the whole water pump?
Yes, but for all the work involved, it is usually best to just replace the pump while your there, I know Would !
Q:And if it needs to be replaced, does that spell trouble for a car? I see a car I might like to buy, but the ad says that the water pump needs to be replaced. Someone please enlighten me. Thanks.
did u get a mechanic to do it? or do it yourself? if you had a mechanic do it, ask them to fix it if you had no problems prior. Could be thermostat, could be you dont have enough coolant in radiator or even proper coolant to water ratio. All i know is you need to bleed out the radiator to remove all air after water pump is taken off and put back on, because that can cause problems aswell. ok well you just updated it, so i am too, your mechanic sounds like a dumb ****, he should have bled air out of radiator, the fact he told you is weird, should have fixed it then and there. It is an important step of changing water pump. If there is air in it, your radiator and water pump wont be rotating the water properly. Tell him to fix it and say you did your research and you're not paying another cent!
Q:how can i choose a water pump that is truely on demand as in shuts off when not needed automaticly i purchaced one that claimed it was a quot;demandpump is mine defective or not a true on demand pump?
RV section is probably under cars and transportation, others. On demand pumps are quite common and used in many RV's.
Q:How to determine the pump installation elevation, why should we determine the pump installation elevation?
Water pump installation elevation should be in accordance with the water pump suction head, taking into account the water level of water intake and fall. The minimum water level at the water intake point must be less than the suction head of the water pump, otherwise the water intake will not be enough.
Q:Hello,Thanks for looking into my question. I am a little confused on the definition of a submersible water pump. I am assuming that they are actually submerged but that sounds a bit unlikely in my mind. I suppose if it has a GFCI setup built in with everything sealed beyond the portion that pumps, it would work submerged without any risks involved.Are submersible water pumps meant to be fully submerged? I am mainly interested in this information because I am concerned about the amount of noise they make, being submerged seems likely that they would not be able to be heard. Thanks.
they all make noise. my Ex had them all, arrrgh!
Q:In the design specifications, for example, the water pump requirement is two. What does that mean? Can 3 pumps be opened at once?
Use 2 units and reserve 1 units. You can open 2 at the same time. Can three drive at the same time, depending on your water pipe layout, whether there are three sets of pipes, yes, three units open at the same time.
Q:I have a 1995 Johnson 88 Outboard. It needs a water pump. I have everything loose except the shift rod that goes all the way through the unit How is it connected and how do I disconnect it?Thanks for your answers.
Look okorder click on electronic parts catalogue select Johnson in the dropdown box upper left hand corrner click on 1995 click on 88 click on your model number (or any model #, all 3 have the same gearcase) click on cylinder crankcase the screw you're looking for is part #47 on that chart
Q:It hasnt rain in quite a while, but I havent had any problems with the water or pressure, but it seems like the pump is always quot;onquot;. I purchased this house almost a year ago, never had a well, so I now very little about it. I moved in December, rain season here in NC, and remember the pump going on and off, now its constantly running, Is it normal for the pump to be running that much? any websites to read up on how a water well works?thanks
In the first place the pump should be able to run constantly without a problem, they're made to do this. In the second place go check your tank, see what the pressure is. You must have a water logged tank First: unplug the electric to the pump and then drain the tank completely. Once this is done make sure the tank is drained, plug it back in, wait and see where it stops at, the pressure. It should be about 55 to 65 pounds. When it stops have someone flush the toilet, it should slowly go down, it may settle without turning on, some do. If so, flush it again. Watch it again. When it starts up, keep your eye on it, it should go back to where it was to start with. If it doesn't then the volume control on the end of the tank, with the small tubing coming from it to the switch is out and should be replaced. You have to turn it all off again, drain the tank and replace the volume control. If the switch doesn't stop but, it comes to the end and doesn't open to stop and keeps running, then your switch control is shot and you'll have to replace that. If you have a bladder tank, it should say on the side, then you should empty the tank, as in the upper questions and then using an air pump put in about 38 pounds or whatever the tank says to put in the bladder, then fill it with water again. See if that's the problem.

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