D/DG Boiler Feed Pump

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

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Supply Capability:: 300 set/month

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DG Type Perfect Performance High Pressure Boiler Feed Water Pump

Product Introduction：

D, DG the pump is the horizontal type, the single suction multistage, the segmental centrifugal pump. Has the efficiency to be high, the performance range is broad, the movement safe steady, the noise is low, the life is long, characteristics and so on installment service convenience. Are similar for the transportation clear water or the physico-chemical properties to water other liquid. May also through the change pump overflow part material quality, the seal form and increases the cooling system to use in transporting the hot water, the oil class, corrosiveness or contains the abrasive medium. The product carries out JB/T1051-93 "Multistage Clear water Centrifugal pump Pattern And Basic parameter" the standard.

Range of Application：

Applicable for boiler water,supply and drainage in municipal projects,factories and mines,industrial cyclic pressurization,distant water transportation, pressurization in high-rises,fire control in constructions, and so on.

Type Designation：

D（DG） 46 - 50×12

D – Segmental feed pump

G – Boiler pump

46 – Designed flow (m3/h)

50 – Single stage lift head (m)

12 – stage number

Technology Parameters：

Flow：3.75-500m3/h；

Head：19-650m；

Power：2.2-1050KW；

Rotary speed：1450、2950r/min；

Calibre：40-250mm；

Temperature range：≤105℃

Q:What is called soft start of water pump?: Close the outlet valve of the pump, open the inlet valve, and can ensure that the water pump "self filling" (the liquid level is higher than the pump inlet pipe under the condition of the water pump start procedure is: to start the motor, to the normal operation of the motor, slowly open the outlet valve, the current gradually increase. But in the unattended operation (valve), and automatically pump, and pipeline diameter and length (in the pipeline water quality will be great), such as the motor start fast, to quickly promote the quality of water (as the train will soon accelerate acceleration), will make the motor starting current is large, causing the motor to trip and the damage of mechanical and electrical. Soft start (soft starter added in the circuit) - that is, slow motor speed, can overcome the above situation.Stop the pump normal order is: close the outlet valve, then stop the motor, such as unmanned operation, the outlet valve is not closed, when the pump stops suddenly, the water inside the tubes (especially vertical pipe), water will quickly turn back, so when the check valve suddenly closed, the fast flowing water suddenly stop by the inertial impact that produces "water hammer" effect and damage of pipeline system, using the "soft stop" should, in the circuit is connected with the soft stop device.

Q:I just bought a house a little more then a month ago and just received my first electric bill and it's OUTRAGEOUS!! I have a feeling my electric pump is doing most of my water heating which I found out it is (currently it's on 24 hours a day .. I didn't know). Now, I called a solar company in my area that deals with Hartell pumps, they said if the Hartell pump is working, it should be vibrating .. mines is not .. are they correct? They also said it only works when the sun is out, so by evening, I have to switch on my electric water heater. I'm just checking to see if I'm receiving the correct information before I time my electric water heater .. since every other local solar company I called are unfamiliar with Hartell pumps.: OK, well your question is a bit confusing and I am not sure if it is because you don't understand how your system works. Your hartell pump pumps water. It does not produce heat. Your water heater heats water. It is a backup to your solar panel system. If on the other hand you have a heat pump as a back up source of heat this could be an entirely different matter and you are best at providing a model number which should be stamped on the part. We need to start again. Is your system for solar hot water or for general heating? Is it a system in a cold climate where freezing is an issue. Is it a pump down system or a system that circulates antifreeze in the solar loop. The reason all this is significant is that if you are paying a lot in electricity then something is not working. The first question has to be is it a design problem, a mechanical problem or an operational problem. You may need more hot water storage or more solar panels, you may need to replace parts, or you may simply need to turn the right valves (This would be the case where you have a grounding loop to keep the solar panels from overheating in the summer.)

Q:It is known that it takes an hour to pump water, and also to know the head. How does the pump power need to be calculated? What's the formula?: Motor Power (kw) =0.163*Q*H*K/60/EOf which: Q is the flow, unit m^3/hH is the lift, unit ME is the efficiency value of the pumpK is the safety factor, generally 1.1.

Q:Could this be a result of a bad water pump.: not water pump / lol its ok

Q:how does a water feature pump work?: Hi. Most pumps work by squeezing the water through a nozzle. A water feature pump is usually hidden from view but still works the same way as any other pump. A motor turns the device that pushed the water.

Q:What does the pump lift mean?: The pump head is the height or length of the distance from the pump to the outlet

Q:I have a '97 Grand Prix with a 3800 V-6. There is a single bolt on the left side of the water pump that is directly behind the power steering pump pulley. How do you get the PS pump pulley off? I pulled a tricep trying to get this thing loose, and I'm no further now than when I started on it. Can anybody give me a tip on removing the pulley or the whole PS pump? I have a brand new water pump that I can't get on because of this fine piece of design by the brilliant engineers at GM!: here is a step by step on how to re move the pump is a lot easier than tring to pull off the pulley plus it will not come off when it on the engine there is no room for thr puller.

Q:I have a 2004 Toyota Sienna and it has 80k+ miles on it. I guess it is the drive belt that is making the noise and I decide to have it changed. I can have the timing belt changed too because it is due at 90k miles. The dealer guy told me that I should also have the water pump changed too because of 2 reasons:1. the new timing belt will cause pressure to the old water pump. If not changed, it will leak in weeks.2. it is cheaper to do it altogether.Without changing the water pump, it would cost about $300.All would cost $1000+.My friend who also has a Sienna that has more miles on it, told me that he did not have to change the water pump.Your advice about the water pump is?: When I change timing belts, I don't change water pumps. Since I do my own maintenance, I'm willing to spend another 4-5 hours tearing things apart to change the water pump if it subsequently fails. If I were paying a shop to do it, I'd have all the work done. Since the water pump is a moving part with bearing, its going to fail. Will it fail at 80k or 180k? Hard to tell. If you're willing to take the chance that it won't fail and are willing to pay the extra money to take it all apart again if it does, then don't change it. A better way to think of it might be in terms of how long you plan to own the vehicle. If you want to keep driving it another 100k miles, then I'd change it out now, if you plan on selling/trading it in in a couple more years, guess I'd be more inclined to skip it. Hope this helps.

Q:Does the pump accessories have a shelf life?: Yes, it's probably a year

Q:i replaced the water pump and redid the timing belt. now when i start it, it sounds like one of the cylinder is misfiring and makes a chucking noise. do you have to reconnect everything together to see if thats the problem? the engine worked fine before i replaced my water pump. engine like vibrates at each chucking noise. could it be incorrect timing even when the engine starts fine? or is one of the valves bent which is causing the vibration and noise? i checked teh spark plugs and they are fine could if be bad coils? or is the crankshaft weared out? please help and thanks for you help about my situation.: timing is off. did u line the makesbefore taking the belt off ,and did i spin the motor two full turn to see if the timing makes line up

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