Single Stage Double Sucton Pump

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Single Stage Double Sucton Pump

1.Introduction

DDL serial is horizontal volute double sction pump. This serial pump is an unique new product which is developed by our company by combining the advantages of the products of many other factory. DLL serial pump adopts inner arranged sealing and lubrication structure. The lubrication, flushing of seal system by closed circulatingwater are more direct, efficient. Linearity designed outline, the casing cove with streng structure make the pump to be on intrgrated mass, flexible stucture design makes pump more nicer. The casing inlet and outlet of DDL pump are both located under the casing. thus the rotor can betaken out without disassambling serial pipeline, so its maitenance is very convenient. Most part of the casing adopt double-passage design to reduce radial force. Casing, casing cover both adopt resin sand board moulding, this ensures a good appearance, accurate passage dimensions and high efficiency. Transmission is driven by motor through flexible coupling. Turn direction:clockwiserotation viewed from drivinged for clockwise rolate, and counter-clockwise viewed from drivinged for counter-clockwise rotate.

2.Applications

They are applicable to power station, water supply, municiple, contruction, fire fighting and mine, which are used in transporting clean water or liquids whose physical and chmical characteristic are similer to water

3. Operating conditions

Capacity range: 50~36330m³^_/h

Head range: up to 160 m

Medium temperature: < +105°c

Q: I have had this water pump changed 2 times in 5 years is this normal for this car? It has a v6 motor.: 1. Remove any radiator shroud, or any cowl obstructing the fan, radiator, and water pump. 2. using a pair of large pliers, take off the clamp on the lower radiator hose at the water pump and drain the coolant into a container. Make sure the motor is COLD, room temp, when you do this. 3. Remove the other hose. 4. Remove the cooling fan using an air hammer or a large adjustable wrench. This part is tricky, unless your fan is bolted on with 10 mm bolts, then you lucked out. 5. For step 4, leave the belt on, it will make it easier to remove the fan. 6. If you have a V-8 LT-1, then you have 4 13 mm bolts. Be careful not to damage your distributor which sits under the pump (nice design GM) 7. Using a razor blade, remove any gasket on the inlet and outlet on the block. 8. Apply a thin layer of gasket sealer on the gaskets for the new pump. 9. Install the pump, and its bolts. Use locktite if you have some on the bolts, medium strength. Tighten the bolts to about 90 in/lbs 10. install the pully, and fan. (again, tricky) 11. Install the belt. 12. put lower radiator hose back on (leave off upper) 13. pour 1/2 a bottle of Dex-cool coolant in the radiator 14. fill bottle up with 1/2 water, 1/2 coolant, and pour it into the reservoir. 15. If necessary, get new bottle of coolant, and pour it into the UPPER RADIATOR HOSE, this will help bleed air out of the system. 16. keep filling upper hose, and radiator until it stops bubbling down and basically overflows. 17. install upper hose. 18. make sure the radiator is full and system has no air pockets. Check to see if the upper radiator hose inlet has a bleeder valve. If it does, use a pair of pliers and open it, and watch coolant in radiator drop, then fillit up again. The V-6 has one, not sure about V-8. 19. put radiator cap on, and resevoir cap. 20. run motor, check for any leaks. 21. drive, if vehicle is overheating and there are no leaks, there is still air in the system. Wait till it cools down and bleed air again.

Q: i replace all the seals on the water pump reinstalled it and the same thing happened... it leaks out the bottom some where and run down the water pump and down the hot side radiator hose... any ideas?: Definitely a gasket issue, if you just had it replaced, then whoever did it either tore the gasket by accident, didn't put proper amount of RTV silicone, or didn't tighten it up enought.

Q: I found a small submersible water pump for pond decorations or birdbaths in my garage. It's about the size of three decks of cards stacked on top of each other. Would there be any harm/benefit of putting this into a 55 gal fw community tank?: well it depends, do you have any small fish? and how is the water cycled in the pump? it needs to be protected so that fish dnt obviously get sucked. before you add it in tho need it submerged in a bucket of water and add several teaspoons of salt; that will kill all the bacteria that may have grown on and inside the pump. leave it in there for minimum 24 hours (just to be sure).

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.: Step 1 Open the car hood and locate the thermostat on the top of the radiator lid. Pull the thermostat and start the car. Watch the temperature gauge carefully. If the water pump is working properly, the engine should take a long time to warm up (if it ever does). With the thermostat removed, the coolant should circulate continuously, making it harder for the engine to warm up. If you cannot tell if the car is heating up slow or not, move to Step 2. Step 2 Turn the car off and locate the water pump and the water pump drive belt in the engine compartment. Use the wrench set to loosen the belt retaining bolt and pull the belt off of the pump. Spin the belt drive with your hands to see if it rolls smoothly and to determine if there is any movement or play in the driveshaft. If the pump seems in good working order, replace the belt, tighten the retaining screw back up, and move on to Step 3. Step 3 Locate the coolant drain plug on the bottom of the radiator and use the wrench set to remove it. Allow all of the coolant to drain out into a container and dispose of it. Replace the drain plug in the bottom of the radiator and then pour coolant into the radiator. Start the car up and watch the level of coolant carefully. If the water pump is working properly, the coolant level should drop quickly as the pump circulates coolant to other areas of the engine. Fill the radiator back up with coolant and watch it to drop again. If the coolant drops then your water pump is fine, however if the coolant drops very slowly or not at all it may be time for a new pump.

Q: Is it a good idea to turn my pond water pump off at night and back on during the day to lower my electricity bill?: You have a few issues here. Your water that leaves when it's turned off - that's part of what's called your 'water in transit', the problem part is what can't be contained by your lower vessel when turned off. A surge tank can remedy this, as can other solutions - but I'd have to see it. Leaving it on 25/7 can eliminate this effect - until someone has to work on it. Off or not - if it is a sterile pond, you may only need 4 hrs a day for the sanitization, if your circulation is proper. If its a single pump setup, then override the timer to get the look (if you have a waterfall or fountain) when you want it. If it's a live pond, then it really needs to run all the time. These points are all part of a proper waterfeature design. Unfortunately, in this market, lots of folks and others are creating things which have the attributes you describe - and plenty more. It's like the professor of Landscape Architecture at the University of Arizona said, 'A waterfeature that is not properly designed and/or built is a planter waiting to happen'. Good Luck!

Q: I am trying to replace a water pump on my ranger and i have all the bolts out. It seems to be stuck i think it is because of the oring around the outside of the pump andy ideas of how to free it?: First of all, make sure you have removed all the bolts. They can be found in the most unlikely places Once you are positive all the bolts are out gently tap on the pump around the perimeter to break it loose. I have changed many water pumps and seldom do they just fall off. Do not hit the belt pulley as you will need to reuse it. I use a ball peen hammer. You don't care if you damage the pump but why ruin a good hammer. If that doesn't work then you need a mechanic. Most probably to find the bolt you missed. .

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.: some come apart on top of the gearcase somewhere

Q: I replaced the water pump on my 350 chevy small block with a new water pump and the thing is leaking out of the lower bolt hole on the passenger side. I was told to remove the bolt and coat it with permatex hi tack gasket sealer and reinstall it Any how I'm wondering why there would be a leak there in the first place, any ideas?: Remove the new pump and gasket. Reclean the steel surface and remove any pieces of the old gasket that might still be attached. That surface needs to be perfect. Apply the recommended sealer after this is done . Either a sealer or anti-sieze compound should be added to the threads. Recheck surface of new pump for any flaws and reinstall. Bolt in a criss -cross pattern and tighten equally , partially tight first and then all of them fully tight.

Q: My well water pump runs constantly. The manual says it should kick off at 50 psi, it only gets to 48 (moves to 45 rather quickly, slow to 48). Water isn't an issue. Turned off all water to house, and still gets to 48, so I believe I can exclude leak somewhere in the house.One place I called said it could be a bit of grit in the jet pump when I called. This seems like it could cost big bucks. Could I suggest for the service man to check anything else?: Some things you could check for yourself. The volume control on the end, middle of the tank. This has a rubber in it and could have a Small hole. Second, the diaphragm that controls the switch may have a ding in it, it would be hard to see or check, listen for any leaks. Make sire you use plumbers putty on all your fittings. If all else fails, call the pump guy.

Q: i need to know an estimated cost for changing this cars water pumpthanks..: Too okorder i did this, and by doing so it saved me money, time, and the risk of getting ripped off.

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