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pumps

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. R

    Heating pump Circulatingpumps

    I have this water pump. Can anyone tell me what the difference is between Min, Med, Max and C1, C2, C3. And what do the Icons mean above them? I have tried reading manuals but they don't really say.
  2. 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...
  3. J

    Do sewage ejector/sludge pumps need to be run frequently?

    We are building a new home in Pakistan and plan to have a basement with guest room and full bath. It being a guest room won't see much action most of the year. Two different plumbing guys told me that sewage sludge/ejector pumps for basement sewage pit breakdown if not used frequently, so...
  4. M

    Dab or grundfos pumps

    Is there much difference between the two makes with looking at a domestic central heating pump. Thanks
  5. O

    Double Grundfos Pumps?

    I've noticed my downstairs radiators haven't been coming on this week (I know- it's august- this is for drying clothes!). I'll check the motors are running after work tonight and bleed the rads, but after looking into the set up of my airing cupboard, which as you can see from the picture is a...
  6. R

    Water Pump that pumps from river when it detects low water in storage tank

    Hello All, Im trying to figure out how best to get water supply from a river which is close to my property. Im currently looking into a gravity fed system. But was wondering if anyone could tell me what kind of pump would i need that could automatically pump the water when it detects the...
  7. Gasmk1

    anybody know much about the cylinders with integrated air source heat pumps

    anybody know much about the cylinders with integrated air source heat pumps
  8. Ted808

    Fault finding . heat pumps . Taining . experience

    Can anyone recommend? .... training in heatpumps, books or web links on fault finding said heat pumps and a good place to get some experience- I'm looking to expand my knowledge. I've done a taster course a few years back at colledge but that info has rusted in the back of my brain.
  9. CorgiDirect

    Powerful Chemistry , Professional Pumps & Chemicals By Kamco

    We have a wide range of Kamco Product available to order from CORGI direct - VIEW HERE
  10. K

    Whole house pump and existing pumps

    Hi hope you are well. I have a gravity fed hot and cold. Hot water cylinder is on ground floor. Cold tank is in loft. I have 2 showers on 1st floor. One is pumped by a pump in the loft. Other is pumped by pump in shower itself. The latter is noisy and I want to replace it. But pressure in house...
  11. D

    Best choice out of 2 Pumps

    I’ve got a 6 bedroom house with 4 bathrooms. There are 24 radiators in total. It’s a sealed system with an expansion vessel. I’m going to upgrade the existing Grundfos pump to a small commercial type. I’ve already got two pumps in my possession to choose from. The Grundfos UPS2 25-80 and the...
  12. C

    Location of pumps and valves

    Is there any reason why the pump and valves need to be located in the airing cupboard? We have Gravity HW and pumped CH, but the boiler has been condemned and needs replacement. 4 pipes come down to the boiler room, as do all the hard wiring from room stat and timer. The HW gravity pipes are...
  13. P

    Dream Air to Water Heat Pumps

    Hi Has anyone got any experience of these. I especially need to know how noisy they are from practical experience, not from Db figures which I don't understand. Also how reliable? It will most likely be an 8KW model to run just the UFH only which is set at around 35 C. They are cheap, maybe too...
  14. J

    Two pumps connected in parallel runs continuously

    Hello everyone, I'm a Plumber/ pump man from the Philippines. I need advice regarding pump problem. I dont know if this the right forum, but here it is. Two pumps connected in parallel runs continuously. What puzzled me is that whenever I partially closed main discharge valve or any of the...
  15. quality

    Heat Pumps

    I asked the same question when I registered and got slagged. Plenty of years of development. I have been involved with heat pumps for a while (2002 my first) combis are not my thing. Any heat pump engineers on here?
  16. KarlAtkins

    Multiple show pumps

    I have a 1.5 bar salamander feeding 2 showers, this is sufficient and works ok for a rain fall head and hand held but 1 of the 6 body jets in the setup isn't working, they are plumbed in a pressure balancing loop. I don't want to increase my 15mm feed to allow for a 2.5 or 3 bar pump as this...
  17. D

    Pumps to boost pressure for combi boiler flat?

    Hi, I live in a 4th floor flat, with 2 recently refurbished showers and a combi boiler. The pressure in the showers was poor, so after getting some reassurances that a gravity fed pump was still ok for my flat, I had a gravity fed salamander pump installed, but after a few weeks of it working...
  18. CorgiDirect

    Grundfos Pumps Now Available From Only £76.00 ex VAT

    VIEW HERE
  19. M

    Grundfos comfort pumps

    Anyone fitted these? I am looking at installing an invented cylinder in my own house and while looking at secondary returns came across these.
  20. D

    Walrus Pumps - any good?

    We are currently renovating a house and our plumber had told me he would be fitting a Grundfos booster pump but when I popped in yesterday he has fitted a Walrus 400 TQ400 instead. How would it compare quality wise to the equivalent Grundfos? Going on price alone I'm guessing Grundfos would be...
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