DC Variable Speed Pump with Potentiometer Speed Adjusting

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Shanghai
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1 set
Supply Capability:
1000 set/month

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Specifications

DC variable speed PUMPwith Potentiometer Speed adjusting and PWM(50-800HZ/Amlitude 5V) or VR(0-5V) Speed adjusting connection

DC variable speed PUMPwith Potentiometer Speed adjusting and PWM(50-800HZ/Amlitude 5V) or VR(0-5V) Speed adjusting connection   :

 

 Features:

 

1. Life: Expected life span is about 30000 hours.

2. Low noise: ≤40dB, far from 1meter distance.

3. Duty work: The pump can sustain heavy duty work for a whole day.   Continuous operation.

4. Working conditions: Applying to indoor and outdoor under temperature 40   degC.

5.Working temperature: Within 100 degC. can work in water and out of water.

6. Can work in water or out of water.

7. Reliable Performance: Works quietly; Energy saving; High efficiency; Environment protection; We can offer over voltage protection, overheat protection, run dry protection, over current protection, idling protection, blocking protection, jammed protection signal feedback, speed control, ect.

NOTE :3phase dc is completely different with 3phase AC; 3phase DC means 3 pairs of magnetic polarity & sensor-less, power supply the same with common DC pump(two wires: positive and negative). Intelligent program-driving, sensor-less,PCB board outside (main factor that pump can be high-temperature resistant)


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Q:Water pump pressure for shower?
if your sink does not need a pump, you shower won't either....most water systems are pressurized
Q:Can centrifugal pumps be idle? What's the status of the empty transfers?
The centrifugal pump can not be idle, idle will wear packing (packing seal, mechanical seal is almost not damaged) parts, also caused the seal ring, seal, etc. the balance disc wear quickly, and the temperature will rise sharply, causing damage; air transfer effects caused by transient overload voltage of the motor is large, if the motor can not automatically jump to motor will burn.Centrifugal pump mostly rely on the delivery of liquid lubrication and cooling seal of centrifugal pump, idling is empty load, is to open the inlet valve, close the exit valve operation can move, try reversing or empty load operation should be based on the inevitable time, pump specification shall prevail.
Q:Suzuki 1982 DT8 Exhaust in barrel affect water pump?
i agree with richard. get a hose attachment, a set of earmuffs and run it with them. you wont be able to see water exiting the prop shaft area with the motor in a bucket. hte indicator, where the motor normally pisses to show its pumping water, those sometimes get clogged and need cleared out. it is possilbe for the motor to suck air, or exhuast, instead of water, if a gasket is bad around the impeller. in addition to the gaskets normally changed, there are more gaskets underneath that. usually, those gaskets only go bad if the motor is overheated to the point that the old impeller housing shows signs of excessively high temps. if the old housing was half metled, id go ahead and pull it apart and change the other gaskets too. but the exhuast chooses to exit that port becuase its easier to go out there then through the water. and you see water exit with it, so you know it is pumping water up into the motor. i'll also point out this much. if you are unsure, take it to a proffessional. you can total your motor by operating it without a properly working cooling system. paying a pro to fix it right is much cheaper then a new motor.
Q:is it safe to drive 1.3 mile (no hill) with dead water pump?
driving it 1.3 miles should be no problem, but why do they believe the water pump is bad? Do they have the water pump off the engine yet? It's not impossible for bits of the thermostat to break up and cause a problem, but it IS unlikely. Was the car maintained with the proper coolant otherwise? It is not unlike a garage to get you in for one repair and sell up to another that you do not need. Please answer the questions above... Thanks for responding!! The thermostat is made so that if the spring breaks (which it can),the pieces are captured around the center post and, generally, can't be sent thru the cooling system. When a pump goes bad, it is usually the bearings that go out and they can create a whirring noise and as they get worse, coolant will start to leak where the shaft comes out of the water pump. A simple way to tell if it is bad is to try to wiggle this shaft or look for coolant leaking out the area of the shaft (with the engine off, of course). To answer your original question tho, IF this is legitimate, then you should pay for the water pump. If the water pump is off already, did they take it off without your knowledge? If so, don't drive it. Get them to put the old one back on (free) and drive it down the road. If it's still on the engine, driving it the 1.3 miles shouldn't be any problem. Best of luck to you P.S. One of the responders above said to loosen the radiator cap because the water heats quicker under pressure. THIS IS NOT CORRECT. If the car were to overheat while the cap was off, you run the risk of losing all of your coolant.
Q:water pump?
It is possible your water pump is worn out, yes...but it could be other things too. I would change the thermostat first, being a much lower cost. If the thermostat is sticking shut, or not opening right at all, it can prevent the coolant from circulating right. That lets the whole engine heat up and coolant boil. That may be the sound you hear, normally called a water hammer... If you take it to the shop, which you should do now, ask them to check the thermostat and water pump, to be certain of the problem... I hope it is just the thermostat that is causing this, but check it good...
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:How many kilometres should a water pump be changed on a toyota hiace 5l engine?
Toyota Hiace Water Pump
Q:water pump leaking antifreeze?
Unfortunately, this usually requires a new pump. It's possible (but unlikely) that the gasket is leaking - more likely, the seal around the pulley shaft is the problem. Replacement is the only option. Usually, this is done at the same time as the timing belt - has this been done yet? If it was done before you got the car, its possible they tried to save a few bucks by skipping the water pump. This is usually a bad move - the pump almost always wears out at about the same time - but it is cheaper, if they were planning on getting rid of the car soon. And since one usually needs to be removed to access the other...you get the idea. Good luck!
Q:Well Water/Pump Problem?
The pump has a capacitor start motor. Electrolytic capacitors fail. The capacitor is not physically down the well with the motor though, just electrically connected. There should be a pump control box on your wall somewhere with a pump shut off lever on the side, some relays and a large motor start capacitor hidden inside the box. Kill the main power, open the box, remove the capacitor and replace it with a new one with the same number on it. You can get them at any pump supply place, or even just order it on the internet. I recommend taking a picture first for reassembly if you can't understand the schematic on the inside of the box. Sometimes electrolyte from the bulged out old cap obliterates the schematic anyway, so having a pic is a good idea. Look on the internet for motor start caps if you can't figure out which item it is.
Q:Oxygenator or water pump?
To be quite honest, they are roughly the same thing. For a small pond all you need is something to agitate the surface of the water. the carbon dioxide/oxygen exchange only occurs on the surface therefore a small fountain that agitates the surface would work, or a small air pump that causes bubbles. Both are just fine.

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