High Pressure Coal Mine Dewatering Pump

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 5000 set/month

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Quick Details

Place of Origin:Henan, China (Mainland)
Model Number:200QJ40-143
Theory:Centrifugal Pump
Structure:Multistage Pump
Usage:Water
Power:Electric
Standard or Nonstandard:Standard
Fuel:Electric
Pressure:High Pressure
Application:Water
Material:Cast Iron / Stainless Steel
Color:Blue
Flow:40m3/h
Head Range:121-170m
Power:25kW
Rotational Speed:2850r/min
Drive:Motor
OEM,ODM:Accept
Fuction:submersible pump special for coal mine
Advantages:with pile casing,also work very well when the water level is low

Packaging & Delivery

Packaging Details:	wooden box packing
Delivery Detail:	3-5days after payment confirmation or as customers' requirements

Specifications

high pressure coal mine dewatering pump
1.pantent mine pump
2.self cooling,end suction
3.especially for coal mine

high pressure coal mine dewatering pump

1. Parameters

Flow range	10~500 m3/h
Lift range	10~600m
Applicable well Borehole diameter	φ175~φ400mm
Diameter scope	φ32~φ203mm
Temperature range	-15~80 centidegree

2.Product overview

QJ submersible pumps are widely used in

agriculture irrigation, sprinkler irrigation well water lifting
water supply, drain system of industrial and civil building
the hill, mountain areas' water diversion
drainage of low-lying areas
water supply, drainage of industrial and mining enterprises in urban and rural area
all the other water facilities

agriculture irrigation, sprinkler irrigation well water lifting

water supply, drain system of industrial and civil building

the hill, mountain areas' water diversion

drainage of low-lying areas

water supply, drainage of industrial and mining enterprises in urban and rural area

all the other water facilities

3. Model significance

300 QJ 200-40

300-----------Base No.

QJ------------Type characteristic, Submersible

200-----------Flow (m3/h)

40------------Head (m)

4.QJ mine well submersible pump using condition :

(1). 380V voltage deviation is no more than ±5%, frequency is 50HZ, three -phase power deviation is no more than ±1%.

(2). Motor cavity must be filled with water.

(3). The first stage impeller of the pump should be more than 2mm below the moving water surface, pump unit should be less than 70m below the static water level.

(4). The distance from the motor bottom to well bottom must be more than 3m.

5. Characteristics

(1). Motors and pumps assembled into one.

(2). Simple structure.

(3). Easy installation and removal, small area.

(4). Simple using and maintenance.

(5). Safe and reliable operation, no pollution to water, etc.

Model	Flow range	Head range	Rotation speed	Pump efficiency	Rated power of motor	Maximum outer diameter of unit	Weight
Model	(m3/h)	(m)	(r/min)	(%)	(kw)	(mm)	(kg)
175QJ10-40/3	9-11	42- 38	2850	53	2.2		48
175QJ15-65/5	13-17	68- 62	2850	58	5.5	168	73
200QJ15-26/2	13-17	28- 24	2850	62	2.2	184	48
200QJ20-30/2	18-22	31- 29	2850	66	3	184	59
250QJ140-105/7	130-150	91-120	2875	76	63	233	430
300QJ300-160	279-321	167-153	2900	76	220		620

Q: What is the current of the pump when it is started?: When the motor starts, the rotor changes from a prohibited state to a rotating state, requiring a great torque, and the current must increase. When the pump starts, because there is water, it is started with load, and the current will be greater.

Q: i used my water fountain pump for the first time yesterday and I've had it for 10 years and i used it yesterday it worked with the water and everything was fine!then the next day i wanted to turn it on , it went on it started vibrating but it wasn't pumpingwhen i had it on the other day the water was dirty but it was workingi cleaned it the filtershould i put vinegar to clean it ?and what else should i do!??? Help :#92;thank you!: Debris is probably blocking the impeller ,a wheel that spins inside the pump,and moves the water through,you might have to take it in for servicing to a repair shop,if you aren't mechanically inclined to do it yourself.leaf litter,or a twig can get inside the intake port and wedge itself in the wheel,and keep it from working ,try backflushing the pump,forcing water the opposite direction through,and see if this dislodges the blockage first,then if no luck,you'll have to dismantle it to get the blockage out Make sure you handle the pump carefully.if all else fails,you could try whacking it with a hammer,and see if that jolts it free.It is pretty old now,and may be just time to get a new one,10 years is a good life span for one of these pumps.

Q: Car started making noises right after hitting deer, week later car that has never had a problem began to overheat and mechanic says water pump went out and that it has nothing to do with hitting the deer.: water pumps sometimes just go. just like most other auto parts the water pump will give little or no notice. get it to a garage quick!!! call around in your local area for the best estimate and go with them. replacement can be somewhat costly depending on your car. don't forget to replace the timing chain at the same time. if your car is close to the 80,000 mile mark the timing chain could go soon. to get to the water pump you remove most of the parts in the front end so you might as well replace the timing chain while you already payed to go that far. timing chains go for around$60-$80. i replaced my own in a truck a few years ago ,so take my advice and do both if you plan on keeping your car. i'm from n.h., we have alot of deer related accidents. i hope he was tasty!!!

Q: My mechanic doesn't get back in town until next week, and I'm struggling without my car. I don't really have any other options mechanic wise and I'm not dropping $1000 like meineke wants.How easy is it to follow the Haynes repair manuals or any other repair manuals? I have a 1996 dodge avenger and I need to replace my water pump. I know it's a time consuming task, but is it especially hard to replace it?: If you don't have any experience working on cars aside from changing oil my suggestion is to take it in and get it done. You need to drain the coolant, loosen the belt, and then try and torque off those bolts that are prolly sticky on the water pump. And if the water has eaten through the gasket you may need to get the engine block redone where the water pump rests. Oh but don't go to Meineke yuck, you might as well pull your pants down at your own house and sit on a plunger handle; at least it is free and will probably be less painful.

Q: What is the difference between a High Flow Water Pump, Heavy Duty Water Pump or and Electrical Water Pump for a street rod? I have a 77 Camaro with around 410hp with the factory A/C. The Camaro is stock as body, frame and interior. I want to enjoy the car vs racing it. I would like to go on trips to visit family out of town which is around 300 miles and be able to drive the car with out having over heating problems.: the key to keeping a car cool isn't the size of rad but water flow and air flow.elec.are for race cars and cubic dollar cars stock works for me or aftermarket high flow.and good fan that pushes allot of air.

Q: 1995 Ford Contour GL, 2.0L 4Cyl- three water pump failures. I bought the car in 2000 [49,000 miles] and in 2003 [116,000 miles] a leak from the weep hole area was repaired by replacing the pump. In October, 2005 [164,000] another leak from the same place was again repaired by replacing the pump. Just over two years later now, 196,000 miles, and today it's leaking from the same area. Any idea why this would happen? Each time I've replaced the pump, I've not been able to see any damage to it. People talk about impellers breaking, but they've always seemed intact. Maybe it isn't a pump failure so much as a leak for some other reason? Since purchase, the car has run what appears to be hot, in that the temperature gauge, when at operating temps, is only a tick or two from overheating, but since it's in the normal range, I've always assumed it's just a faulty thermostat. It's never overheated except for when the leak has sprung up.Any thoughts? :): You could have a pulley that is bent or out of balance. Maybe your cooling system needs to be flushed and its putting a little extra load on the pump. You can check the temperature with an infra red thermometer to tell what the actual temperature of your engine is, then you'll know if your gage is accurate.

Q: Im looking at putting a little cabin on my property for hunting. i have a 200 gallon under ground water tank for fresh water. I'm needing a pump to run water into the cabin for a sink toilet and possibly a shower. does anyone know what style pump i will need so that it does not constantly build up pressure when not in use that way i don't burn it up.: The way wells work is there's a pump at the bottom. It pumps water into a holding tank that has a diaphragm separating water from an air charge. There's also a pressure sensor switch that kicks the pump on when the pressure in the water tank drops below 40 PSI and shuts it off when it reaches 60 PSI. Well water systems don't just run the pump constantly, or they would burn up. What you want to do is use your storage tank as a source. Pump that into a smaller holding tank from a well water system so that when you run the water you run it from the pressure in the holding tank. When the pressure is low enough the main tank pump will pump up the pressure in the holding tank back to 60 PSI and shut off again. It's well worth it to make sure you don't have leaks. Otherwise your main tank will end up empty and the pump will run on and on. Which is another thing you have to watch for. You can install a float level switch so that if the water in the main tank drops below a certain level it shuts the pump off. AND you can also have it switch a warning light on so you know when the big tank is empty. Hope this helps. '')

Q: Hi I really need a USB water pump (small). I have found one in China but they need payment in a different currency so its proving difficult. I would much prefer a US/EUROPE seller. Cheers.PSgt; If I had to pay to get the power supply changed from wire to USB then I could if anyone knows who could do this.: The USB output has a 5V power supply. USB2 delivers up to 500mA and later versions may be 900mA. USB hubs start off with less than this (100mA) but change as they are initialised. Some dedicated USB charging ports supply up to 1.8A. There are some USB power cables that take the output from 2 ports in a sort of Y harness (first link for example). The result of all this is that only a very small pump would run from most USB ports. I did find 2 rated at 5W and 8W but the voltage was not shown. I suspect they were mains operation, meant for large water bottles. If they were 5V they would use 1A and 1.6A respectively, so only run from special USB charge points or double cables, and only in some cases anyway. I assume you want to run from a Laptop/Notebook battery for convenience. The point is that even if the USB port can supply the correct voltage and current the battery would be emptied very quickly. It is probably cheaper to get a suitable pump, then power it from a separate and more suitable rechargeable battery or mains adaptor (wall wart), whatever it takes, taking into account how long it should run with a single charge. This is about the battery voltage and the capacity in ampere hours - the number of hours it can supply a given current. D size rechargeable (Ni-MH) would run a 6V x 6W motor using 1A for about 6 hours. C size cells are half that, and AA cells about half again. It takes 4 cells to get 5V. Get them as a pack though or at least with a battery holder, as they cannot be soldered. Then you need a proper charger. Recent laptop/notebook batteries are lithium ion types, 10.8V and 4.8Ah, so deliver 1A @10.8V for 4h more or less. Other types worth considering are for cordless drills.

Q: I have a cabin cruiser and I recently took it out of storage and had it de winterized. Now everything seems to work except for the fresh water pump for the sink, shower and toilet. Does this type of pump need to be primed? If so how do you prime it? Thank you for the help.: most likely the pressure switch is stuck/corroded. this is a common problem with on demand type pumps.try tapping on the pressure switch to see if it will work.if the pump is installed properly,the motor should be at the top and the pump and switch will be at the bottom.i consider these pumps disposable. expect to replace it every couple of years.

Q: I must change the timing belt of my car. I have been told that the water pump must be done too since it is right there. Due to the high price I want to postpone/skip the water pump until the next tune up. What happens if the water pump fails down the road? How long does a water pump last? 120K? My car has 60,000 miles on it. Thank you.: There is no guarantee on how long the water pump will last, but normally 100,000 miles plus. But that is true of a timing belt too. The water pump has a weep hole at the bottom, visually check for corrosion or rust in that area. If you see some, could be a sign that it is ready to go soon. If not, then do the repairs that you can afford. But why the heck are you changing a timing belt at 60,000 miles.

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