DG series boiler feed water pump

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Model DG boiler feed water pump is a horizontal multi-stage centrifugal pump and suitable for transporting pure water (with the contained particles content less than 1% and graininess less than 0.1mm) and other liquids of both physical and chemical natures similar to those of pure water.

DG model middle and low pressure boiler feed water pump is applicable to transport medium with temperature of not higher than 105℃, and is mainly used for small boiler water supply or transporting medium similar to hot water.
Performance range of middle and low pressure type
Flow: 3.75~185m³/h, Motor power: 4.0~400kW
Head: 69~684m, Inlet diameter: 40~150mm

DG model hypo-high-pressure boiler feed water pump is applicable to transport medium with temperature of not higher than 160℃ , and is also applicable for small boiler water supply
or transporting medium similar to hot water.

Performance range of hypo-high-pressure boiler feed water pump
Flow: 15~300m³/h,Motor power: 75~1250kW
Head: 390~1050m,Inlet diameter: 65~200mm

Type DG high pressure boiler feed pumps are used for feeding high pressure boiler or pumping high pressure clean water.The temperature of pumped media is not more than 170 C.
Range of capacity:120-1100m³/h
range of total head:967 to 2500m

Q: What is the function of open circulating water pump and shutdown in thermal power plant?: The problem is unclear and it is not clear what the question is. Is the pump open or closed or is the valve closed? Or else?

Q: Water pumps are always pumping water, what's the matter?: Cause analysis of water pump without waterThere is air in the inlet pipe and pump body(1) before the water pump is started, the water is not filled enough. Sometimes it seems that the water has been discharged from the vent hole, but the pump shaft is not rotated. The air is completely discharged, resulting in a small amount of air remaining in the inlet pipe or pump body.(2) in contact with the water pump inlet of the horizontal application of reverse flow direction, fell more than 0.5% slope, connect one end of the highest import pumps, do not completely level. If the upward tilt, the intake pipe will retain air, reducing the water pipes and pumps in the vacuum, water absorption.(3) pump packing has been used for long-term wear or packing pressed too loose, discharge gap caused by the large amounts of water from filling with the shaft sleeve, the external air gap into the pump from the inside, affected the water.(4) because of the long latent water and the corrosion of the pipe wall, the water inlet of the water inlet is constantly dropping. When the holes appear above the water, the air enters the water inlet pipe from the hole.(5) there is a crack at the bend of the inlet pipe, and there is a small gap between the inlet pipe and the water pump, which may cause the air to enter the inlet pipe.

Q: gould water pump model Jo5n: i am assuming you are referring to jet pumps, and not a submersible, you cannot convert a deep jet pump to a shallow. the deep well jet pump has the foot valve down in the well casing. it uses two pipes that go to the foot valve. the deep jet forces water down the well and uses a venturi effect to draw water back up to the tank. the shallow water jet pump only uses one pipe in the well casing. the foot valve is in the pump itself. the venturi is created in the pump itself, and uses a vaccuum type effect to draw water up from the shallow well.

Q: My water pump keeps getting quite hot after each use. Everything seems to be working properly, except I think that the heat may cause it to burn out and that would cause a huge problem. My pump pulls water from a ground level water tank and pushes water up three flats to the part of my house used for living quarters. The pressure setting is set to cut out at 40psi and cut in at 25psi. What can I do myself before calling in expensive experts?: You have an air volume problem and the tank is water logged. When this happens the pump motor short cycles and creates more heat than it can dissipate. A device inside the motor windings cuts the power until it cools again. You can cut the power off,drain the tank, then start all over, it will give you1/3 air pressure volume over 2/3 water. They have an air volume control that may not be operating properly. I use an air compressor on my pump and pump air into the tank about once every two months. It all depends on how much the pump runs.

Q: Dear friends, please let me know in most of the power plants recirculation line and balance leak off lines are provided for boiler feed water pumps and those lines are connected to Deaerator. Why?: The feed pumps for most power plants are multistage centrifugal pumps. They have a minimum flow requirement or the balancing forces of the various impellers are lost and the pump is damaged. A recirculation line permits a minimum flow to be maintained at all times. It goes back to the deaerator so the boiler feedwater is not lost. Note: many of these pumps have the recycle automated so it is only in operation at very low flow rates. The leak off from the balancing line is recycled for the same reason.

Q: I just had my water pump replaced and a coolant flush. 35 miles later, my MAL light came on and my mechanic said my thermostat needs replacement. Should this have been done with the water pump work, or could the work have caused the thermostat problem?: I agree with Scott.Truth is though the water pump is a completely different issue than a thermostat.The only relation they have is both are part of the cooling system.If it had been me doing the water pump i wouldn't have changed the thermostat either

Q: hooking up a water pump to my tank and need a power supply: whrere does red wire go and where does brown wire go

Q: could it be the water pump??: if it blows water through the tail pipe and white smoke it is your head gasket or a cracked block or a cracked head. if it does not have white smoke or milky engine oil than it is more than likley your heater core. if you determine that it is the heater core have your system back flushed before you replace the hearter core it could be pluged.

Q: Hi, I need to create a portable shower and was going to go the DIY route, i wanted to use water pumps normally used in ponds, aquariums etc etc as the means of creating water pressure for the shower, the shower need not be really strong in pressure but it should be strong enough such that a person can take a bath using it.height of the shower would for sure be less then 6 feet,question , water pumps are rated at gallons per minute or some equivalent rating, how strong a pump or how much GPM should i be looking at ?: Himin newly has launched a solar patented booster pump for non-pressure solar water heater and it's quiet and gives comfortable pressure for shower.This pump fits for area where water pressure is small or rural area.

Q: I REPLACED MY WATER PUMP ON MY 1988 CHEROKEE,THE NEW PUMP STARTED MAKING THE SAME BEARING NOISE.: this probably a dumb question but have you changed the bearing in the idler pulley? i have a 89 jeep that squeaks or squeals, bearing noise, just one bolt takes it off. i pulled mine off and greased the bearing, and put it back in, that took care of the noise. that was 6 months ago and it is starting again so i priced a new bearing, $6, you might need the number off the bearing to order it. make sure u just get the bearing, the whole idler pulley is like $40. I'm only suggesting this cause in my experience water pumps don't squeal, they kinda make a scraping noise then shortly later stop all together. if the pump wasn't leaking it might not have been broke. some times it is the simplest things

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