pump replacement

A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.Pumps operate by some mechanism (typically reciprocating or rotary), and consume energy to perform mechanical work moving the fluid. Pumps operate via many energy sources, including manual operation, electricity, engines, or wind power, and come in many sizes, from microscopic for use in medical applications, to large industrial pumps.
Mechanical pumps serve in a wide range of applications such as pumping water from wells, aquarium filtering, pond filtering and aeration, in the car industry for water-cooling and fuel injection, in the energy industry for pumping oil and natural gas or for operating cooling towers and other components of heating, ventilation and air conditioning systems. In the medical industry, pumps are used for biochemical processes in developing and manufacturing medicine, and as artificial replacements for body parts, in particular the artificial heart and penile prosthesis.
When a casing contains only one revolving impeller, it is called a single-stage pump. When a casing contains two or more revolving impellers, it is called a double- or multi-stage pump.
In biology, many different types of chemical and biomechanical pumps have evolved; biomimicry is sometimes used in developing new types of mechanical pumps.

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  1. C

    Grundfos Alpha Pump replacement

    Hello, my Mothers heating failed in the recent UK cold snap. I found the pump was stuck. I have a question about pump orientation. The existing pump flows downwards. The manual for the proposed replacement recommends that it should pump upwards. This would involve rearranging the flow &...
  2. K

    Smart Pump Setting with gravity fed system

    Central Heating Pump - G Pump Force HE-RS25/6PWM-130 Hi, I would be grateful if someone could explain whether our CH system can cope with the AUTO (adaptive mode) setting on this the new pump or which mode it is best set at (recently had our old 3-speed pump replaced with the above smart...
  3. M

    Salus MP100 pump replacement

    I think my old Salus MP100 circulating pump maybe on the way out. Sounded a little noisy and now I’m getting an error (no water flow) message on my new Ideal heat only boiler and it’s not coming on. Ideal engineer coming next week. I see there is a new model MP200A which I may get it swapped...
  4. D

    CH pump replacement concerns.

    Hi. My Parker 15-60 130 pump has been running fine for 7 years at its highest speed. It has recently developed a knocking sound when hot and working hard (disappears on speed 2) but this is not fast enough for my 15 radiator bungalow. Bleeding the pump had no effect so I suspect it might be on...
  5. M

    Trial removal of second CH pump

    Been renovating my house and in the process improved insulation and removed quite a few rads. I've also installed more than half downstairs floor with underfloor heating which has it's own manifold with attached pump (UPS2) as supplied by the underfloor heating supplier. Boiler is sited...
  6. M

    Wilo Gold 50 Pump Replacement Advice

    Hi all I currently have a Wilo Gold 50 Central Heating Pump that after 20 years is now very noisy (no air in it) and is generally on its way out so I'm looking to replace it. I've been looking around for alternatives that are a lot more energy efficient and being the cheap skate I am 😏, not...
  7. D

    Wilo gold 50 pump replacement

    Hi. I have an old Wilo gold 50 pump fitted to the CH system thats making a tapping sound and its getting louder, have looked at various sites and all I keep seeing is pumps that are electronic based is there any non electronic pumps that are proven reliable, dont want to buy used / recons from...
  8. B

    Secondary return pump replacement

    Hi. Limited DIYer who can replace a tap but when it comes to actual real plumbing and pipework, useless. I have a failed secondary return pump in our unvented system. The failed pump is a Lowara EBV 15-1/65U with a mechanical timer. If possible, I would like to just replace the unit with a new...
  9. D

    Pump replacement For Celsia pump

    Got a celsia pump think it’s myson/potterton sounds like it’s on way out don’t think u can bleed it either . spoke to anchor pumps recommends grundfos ups2 15/50/60 whats difference compared to ups 3 15/50/65 the ups 2 is a bit pricy would u recommend it also under pump is gate Valve small bit...
  10. plumb_know

    Boilermate boiler pump replacement

    Hi Everyone, Replaced boilermate boiler flow/return pump yesterday as old one was fried but just used a standard grundfos ups3 as seen people say standard pumps are ok to use for boiler & heating circuit of boilermate, customer says heating demand is constantly on now. I just wanted to check...
  11. O

    Grundfos Pump Replacement

    Can anyone point me in the right direction for a replacement Grundfos circulation pump for an underfloor heating manifold? I have a Grundfos USP0 15-65 130 Part number 96836743 which is a 1" bsp I believe. Looking to replace this and Grundfos says this is an OEM part which they cannot...
  12. B

    Suitable Pump Replacement

    My existing pump is on the way out. It's a Grundfos ALPHA 15-60 130 and about 16 years old. If I use the Grundfos replacement guide it comes out with an ALPHA2 15-60 130 as a suitable replacement. My system is quite large (22 radiators) and I have found, even after balancing, that the...
  13. T

    Circulating Pump Replacement

    Hi everyone, Well...with my luck, my circulating pump has crapped out leaving us freezing! Id really appreciate some help choosing a replacement. I have a 2 bed flat with electric Trianco boiler and closed Y plan system. Ive bled the system and while spinning the shaft/bleed screw the motor...
  14. S

    Stuart Turner Negative Pump Replacement

    I have a Stuart Turner N3.0 twin pump - 46158, it's packed in and I need a replacement, but it's discontinued. The new model is 46410, it's very expensive, does anyone know of another model or brand that would replace it? What confuses me also, is the pump I have is negative, but the...
  15. I

    Advice on shower pump replacement

    I recently had a replacement double shower pump fitted to replace one which had worked flawlessly for about 12 years. The plumber recommended a make which I had not heard of - Aura twin impeller 2.0bar unit. When either shower is operated the noise level from this unit is the equivalent of a...
  16. F

    central heating pump replacement

    He pump has gone and needs replacing. It has a celsia tf110 230v-50hz. What grundfos would be replace this please. Ive seen grundfos ups 15-60 pump 96281473. Thanks
  17. B

    Grundfos Alpha+ 25/60 pump replacement

    Guys and girls Can you help again. I have a pump is tripping the 30mA RCD out whenever the lead is plugged into the pump. The pump is a Grundfos Alpha+ 25/60 with 130mm between ends (used on ufh manifold), could everybody suggest a direct replacement? Was looking at the Grundfos Alpha2 L...
  18. M

    pump replacement

    Hello, all i need to change a circulating pumps (cp 53 ) does anyone know the grundfos modal i could use as a direct replacement ? thanks in advance of any help or advice, malc.
  19. T

    Central Heating pump replacement

    Help! Just bought a bungalow, ( a repossession) that has been empty for over a year so you can imagine what last winter did to the heating system. A sign on the boiler, an Alpha 240E said the system had been drained but it must have been after the big freeze. Checked the pipework in the roof...
  20. M

    advice please - Altech 130-5 pump replacement

    Hi, helping a friend out..he's got an Altech 130-5 central heating pump - it's stopped working. I was going to do a like for like replacement for him but can't seem to find them. Are they no longer available, changed brand name?? Can you please suggest a suitable alternative? He's probably...
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