Multistage Pump D Series

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D, DG multistage centrifugal pump
suitable to deliver the water or other liquids with similar physical.

D multistage centrifugal pumps are suitable to deliver the water or other liquids with similar physical and chemical properties as that of water, which temperature not exceed 80^oC, are used for water supply duties in municipal engineering and factories as well as water drainage in mining.
DG pumps are suitable to deliver the water or other liquids with similar physical and chemical properties as that of water, which temperature not exceed 110^oC, are used for handling feed water in small and medium power plant as well as chemical and other industries.

Applications:
Pressure boosting installations
Boiler feed water plants
Hot and cold water circulation
Fire fighting

Flow: 4m³/h~550m³/h

Head: 70m ~ 1050m

Q: I am trying to areting my pond but air pump cost too much. I have an extra water pump available if I make two intake opening, one for water the other for air, would it work? or will it blow up the pump and kill all of my koi because it is made for pump water.: In general an air pump a water pump are two different types of pump though if your pump is a fixed displacement type, say a diaphragm or piston type pump it could possibly be used to pump air. If your pump is a gear or centrifugal type it will not pump air as it is designed for liquids only. It might tolerate a small volume of air in it but you could end up with cavitation damage to the components the air could cause the pump to lose it's prime that is the air in the casing could make the pump lose suction. What you might be able to try is using a venturi on the pumps outlet. That way you could use your water pump to pump water use the venturi to draw air into the water flow. Without getting too scientific a venturi is a smooth restriction in the pipe that speeds up the fluid (in your case water) flow in doing so it reduces the pressure energy of the fluid turns it into velocity energy. If the restriction is sized right it can drop the pressure of the fluid below atmospheric it will draw air or some other fluid into the flow. Perhaps the easiest way you could do it would be to use a round piece of stainless steel or brass (it won't rust) that is small enough to fit into the pump outlet (I'm guessing you're using hoses) bore a hole along the centre of it then bore a very small hole at right angles to it fit it into the line. It might take a bit of experimentation to get the sizes right but it should suck a bit of air into the line at the same time recirculate the pond water. Make sure there are no restrictions downstream of the venturi as the water will come out of it rather than the air being drawn it. Hope this helps.

Q: i need help on how to replace a water pump oil seal in a 2001 rm80...i looked everywhere...if you can get a video or detailed info that be great, thanks: Drain coolant - #13 drain bolt Remove hose from water pump cover Remove water pump cover - #12 Drain oil Remove R side cover - #1 Remove circlip - #23 Remove water pump shaft - #19 Pull out water pump seal - #20 Note the direction the seal is installed Tap in new seal This entire procedure is explained in detail in your service manual.

Q: how do i take water pump off took all hoses and bolts i think off dont know whats holdin it on how many bolt hold it on i know the seal can hold it on ther but it wont budge even when i use block of wood and tap with hammer: This Site Might Help You. RE: how do i take off water pump on 97 lt1 camaro? how do i take water pump off took all hoses and bolts i think off dont know whats holdin it on how many bolt hold it on i know the seal can hold it on ther but it wont budge even when i use block of wood and tap with hammer

Q: What are the categories of pumps?: Did you say the pump voltage is 220 or 380?

Q: My water pump in my pontiac bonneville 99 went bad, and while I was in the navy, in aviation fuels, some of my job consisted of repairing pumps and valves, and rebiulding them all together, and this water pump from my car seems to have some of the same features of previos pumps i've worked on, usualy when i use to repair pumps, most of the time i just replaced the bearings, just wondering if its do-able, im looking for the cheapist way to fix this, the casing for the pump seems to be in very good condition, but havent got it out of my car yet, im short on tools right now for the moment... thanks in advance for any help...: Dont waste your time rebuilding it, just buy one from napa or some auto parts place with a life time warrenty, on something like that your time is worth more then the water pump, and since the pump is having to deal with hot water and corrosion it's possible it might go out again soon or never but with the warrenty it wont hurt so bad.

Q: How do I change the water pump on a 2003 PT Cruiser. What do you do with the timing belt and gears?: if you have 100,000 miles on it, and haven't changed the timing belt, CHANGE IT NOW. Recommended change at 100,000 miles. Mine broke at 104,000, towing was $125, and then cost of repairs. Also recommend changing seals on xmission at same time.

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: My 2000 Pontiac Sunfire has been overheating and I recently changed the thermostat thinking that was the problem. The new thermostat didn't help and the engine is still over heating. I am starting to think it might be the water pump. How can I tell for sure? When I changed the thermostat and refilled the coolant tank I left the cap off and started the car to work out the air. I was told I should see bubbles in the tank but nothing happened, I thought this might be a sign of a bad water pump. I think I will be able to change the water pump on my own I just want to know for sure if that is the problem.: It could ALSO be crud build up in the radiator interior or road junk in the radiator fins. A bad water pump USUALLY leaks and/or squeals

Q: I was vacuuming up water from my basement I assumed was from the rain, suddenly water started spraying out of a blue pump at the base of my furnace, don't know what the pump does or why its spraying but its making an awful mess.: Blue pump, usually found on the floor near the furnace (sometimes mounted where plenum meets the furnace frame) is a condensate pump. One of the products of combustion is water. This water is drained from the ventor motor (a motor which runs and sets a artificial draft inside the combustion chamber) to a drain nearby or a electric pump which then pumps the water over a longer distance to a remote drain. If the pump's discharge outlet gets plugged from dirt the result is usually the mess you see. Remove the cover plate of the pump housing, clean it out and run a wire with a small rag attached as a snake through the tube to drain. There is usually some type of float switch inside the pump housing so make sure it is free to move. Check for operation by pouring some tap water in it and move the float switch to on (up) One final note and this is very important. If the pump or tube to drain is filled up with a crud that resembles paste, call your local trusted HVAC tech for furnace service. This condition can be an early sign of heat exchanger failure and is a major safety concern for your family

Q: All of a sudden I have no water coming to the house/anywhere from the pump/well outside. It's a newer well, good water quantity (Florida...no dry up problems), no sand in water. I'm new to this house and don't know much about the pump stuff. Is there something I should look at or switch on/off. The breaker is ok. Help, I need a shower! :) Oh, there were about 15 ants around some box, but it didn't look connected to the pump...it's a box to the pool filter thing.: If you are sure you have power to the unit, go to the pressure tank. There should be a pressure control switch with wires going in and out. It may have a reset switch that you can try to reset. You usually have to hold the switch for several seconds for the water pressure to build up past 20 pounds before you release the switch. You can tell if this is working by hearing water flow thru your pipes and/or watching the pressure gauge on the unit.

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