QZ QH series submersible axial flow/mixed flow pump

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QZ series axial-flow pumps QH series mixed-flow pumps are modern productions successfully designed by the means of adopting foreign modern technology. The new pumps' capacity
are 20%larger than the old ones. The efficiency is 3~5% higher than the old ones.
QZ QH series pump with adjustable impellers has the advantages of large capacity,broad head, high efficiency, wide application and so on.
A:pump station is small in scale, the construction is simple and the investment is greatly decreased, This can save 30%~40% for the building cost.
B: It is easy to install maintain and repair this kind of pump.
C: low noise long life.
The material of the series of QZ QH can be castiron ductile iron copper or stainless steel.
QZ series axial-flow pump QH series mixed-flow pumps application range:water supply in cities, diversion works, sewage drainage system, sewage disposal project.The medium for pure-water should be no larger than 50℃.

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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:Slight Water Pump Leak 2001 BMW...help!?
Some seepage through the bearing seal is normal for new pumps. I've never had it happen to me, but that is what I read in the information sheet that the pump came with. If it's leaking out of the gasket area, then you will need to put on a new seal. If the new seal doesn't have anything on it to help the gasket seal such a Felpro's printoseal, use RTV sealant on it and allow it to cure before driving. It is sticky and messy, but it works great.
Q:Why does the water pump in the tank pull out the power supply and then plug it in?
After the water pump of the fish tank pulls out the power supply, it is plugged in again. The possible reasons for the non pumping of water are as follows:1, power failure, please check the power supply contact is normal.2, continuous cycle interrupt, this is the pump design reasons, and more appear in the waterfall filter, once the electricity can not automatically restart, need to pump the water in the artificial vessel.3, air embolism, this is the pump design reasons, and more appear in the waterfall bucket filter, once the electricity can not automatically restart, the need for manual pressing to exhaust.4, the water pump is stuck with debris, in the continuous flow of water, debris to the same direction, once the pump stop, debris position change may be stuck water pump, remove, wash it.5, severe wear, which requires a new pump.
Q:What brand of water pump to get?
PowerHead? or Sump Pump? I have used hagen aquaclear powerheads on my saltwater tanks for years 24/7 without a problem. I just purchased 3 MaxiJet 1200 powerheads and a wave timer to see haw they do, 6 months now 24/7 and so far so good. The longest lasting Sump Pump that I have ever owned is made by Ehime, I've had it for 14 years now and it's still going in one of my tanks. I better cross my fingers on that one.LOL
Q:water pump is constantly priming itself?
How old is the Pump ? Could the Impeller be worn out ? Is there a replaceable filter ? Could it possibly be stopped up ? Are there any leaks in the pipe leading from the well ? Is there a way that you could measure the current being drawn by the pump, with an Amp Meter, to determine if it's pulling more Current than it should be ? Until these questions are answered, it's probably just going to be a guessing game.
Q:Car water pump question?
We need to know year make model and the type of gasket. Its getting pretty rare to need any sort of sealer on gaskets anymore. If they still require a gasket the sealer is often part of the gasket. These look like regular gaskets but have a blue or orange line manufactured right into them that acts like the RTV did in the old days. For some reasons parts store still have and try to sell you the regular gasket but often if you ask they will have a better one with the built in sealer. For something like a thermostat it takes you from a $2 to a $3 gasket. Many makes now use something that looks more like an o-ring in a groove rather than a gasket now.
Q:What would happen if you combined two water pumps?
Any discharge piping system down stream of a pump (in this case a hose) will have a pressure drop that varies with flow. You can develop a curve of this pressure where flow rate is plotted against pressure drop. Any centrifugal pump will have a performance curve. The lower the discharge head (pressure) the more the pump will pump. The higher the head the less the pump will pump. Assuming these are centrifugal pumps then their performance will balance with the system pressure drop curve to seek a point on each pump's operating curve that matches the overall system pressure drop curve. In other words the pressure will go up some and the flow rate will also go up some but neither will double.
Q:Installation position of check valve for water pump
Check valves must be installed at the pump's exit and position before the outlet control valve for servicing the check valve.Jiang Yuanyuan 1985's statement has a problem:1. On the flow of water, because the fluid is continuous and incompressible, the water in any part of the pipe will not flow as long as it is cut off in any position in the pipe.2, self suction exhaust is formed within the pump in outlet pipe, check valve installed in the inlet, because the pressure is low, is not conducive to automatically open the check valve, and its resistance, easy to form a vacuum pump and cavitation.
Q:Need a new water pump, should i get an electric?
Get.the.normal hose then think bout what you need to do
Q:Already changed water pump and still leaking???
hoses that go to the water pump are common parts to leak also or the water outlet gasket/or even the thermostat housing

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