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 Two Outlet Air Flow Adjustbale Aquarium Air Pump 3W 0012 MPa Up to 120 Gallon $19.98 Time Remaining: 15d 16h 41m Buy It Now for only: $19.98 |
 FINE AQUARIUM FISH TANK WATER PUMP GARDEN POND 670GPH ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 4h 38m |
 Four Outlet Air Flow Adjustbale Aquarium Air Pump 9W 0012 MPa Up to 300 Gallon $30.80 Time Remaining: 15d 16h 49m Buy It Now for only: $30.80 |
 FINE 800GPH FISH TANK AQUARIUM WATER PUMP GARDEN POND ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 6h 52m |
 AQUATEC CDP 8800 high flow booster pump transformer 3 8 1 4 RO Water system $107.00 Time Remaining: 14d 7h 21m Buy It Now for only: $107.00 |
 FINE 670 GPH PUMP WATERFALL LOTUS KOI POND ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 6h 30m |
 TAAM Hyperflow 14 Hyper Flow 14 Powerhead Rio 14HF $45.40 Time Remaining: 28d 7h 58m Buy It Now for only: $45.40 |
 FINE 670GPH FOUNTAIN KOI POND AQUARIUM WATER PUMP ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 6h 50m |
 Rena Air 50 Mini Air Pump up to 15 gal aquarium Flow 70 LH NIB $10.59 Time Remaining: 21d 5h 39m Buy It Now for only: $10.59 |
 GAIN 480GPH SUBMERSIBLE AQUARIUM KOI LOTUS POND WATER PUMP ADJUSTABLE FLOW $33.00 Time Remaining: 6h 11m |
 Rena Air 200 aquarium air pump w accessories 50 gal aquarium 60 l h flow NIB $24.99 Time Remaining: 21d 5h 39m Buy It Now for only: $24.99 |
 TAAM Hyperflow 8 Hyper Flow 8 Powerhead Rio 8HF NIB $20.50 Time Remaining: 2d 5h 43m Buy It Now for only: $20.50 |
 GAIN 800GPH SUBMERSIBLE MULTI USE ADJUST FLOW ADJUSTABLE WATER PUMP $52.00 Time Remaining: 8h 23m |
 TAAM Hyperflow 8 Hyper Flow 8 550 GPH Professional Grade Water Pump Power Head $25.90 Time Remaining: 17d 9h 51m Buy It Now for only: $25.90 |
 FINE 800 GPH PUMP WATERFALL 1200 GALLON KOI POND ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 8h 24m |
 Aquael Oxy Boost Air Pump Kit dual outlet w flow control for 30 75 gal aquarium $19.77 Time Remaining: 4d 4h 37m Buy It Now for only: $19.77 |
 FINE 670 GPH PUMP WATERFALL 900 GALLONS KOI POND ADJUST ADJUSTABLE FLOW $43.95 Time Remaining: 7h 44m |
 Aquarium Fish Tank Air Flow Control Lever Pump Valve $6.71 Time Remaining: 6d 8h 59m Buy It Now for only: $6.71 |
 GAIN 480 GPH SUBMERSIBLE REEF CORAL FISH TANK AQUARIUM PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 6h 30m |
 Marineland MN606UL Mini Jet Adjustable Flow Pump 606 82 153 GPH $31.78 Time Remaining: 9d 6m Buy It Now for only: $31.78 |
 Million Air MA 600 Double outlet Air Pump NIB Flow Control Newest design $13.75 Time Remaining: 6h 24m Buy It Now for only: $13.75 |
 GAIN 800 GPH PUMP WATERFALL 1200 GALLON KOI POND ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 10h 3m |
 Rena 400SP400A Water Pump Fountain Pump Aquarium Fish Tank Pump $8.00 Time Remaining: 26d 1h 55m Buy It Now for only: $8.00 |
 FINE 480 GPH SUBMERSIBLE REEF CORAL FISH TANK AQUARIUM PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 7h 26m |
 120V 4 Outlet Large Air Pump 480L H Flow Adjustable For 4 8ft Aquarium Fish Tank $29.99 Time Remaining: 3d 16h 55m Buy It Now for only: $29.99 |
 FINE 800GPH SUBMERSIBLE MULTI USE ADJUST FLOW ADJUSTABLE WATER PUMP $52.00 Time Remaining: 11h 38m |
 TAAM Seio 620 M620 Super Aquarium Water Flow Pump Powerhead 620 gph NIB $32.04 Time Remaining: 24d 8h 33m Buy It Now for only: $32.04 |
 FINE 480 GPH FRESH SALT WATER FISH TANK MARINE AQUARIUM PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 8h 27m |
 Pacific Coast Flow Accelerator Eductor 3 4in MPT $17.99 Time Remaining: 13d 6h 52m Buy It Now for only: $17.99 |
 GAIN 800GPH FOUNTAIN KOI POND AQUARIUM WATER PUMP ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 12h 16m |
 CPR Flow Eductor Accelerator High volume flow 1 2 $26.00 Time Remaining: 14d 5h 2m Buy It Now for only: $26.00 |
 SEIO Prop Super Flow Pump 320 $14.99 Time Remaining: 20d 1h 4m Buy It Now for only: $14.99 |
 GAIN 480 GPH FRESH SALT WATER FISH TANK MARINE AQUARIUM PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 8h 44m |
 950GPH SUBMERSIBLE MULTI USE FLOW ADJUSTABLE WATER PUMP $54.99 Time Remaining: 22d 10h 39m Buy It Now for only: $54.99 |
 GAIN 670GPH FOUNTAIN KOI POND AQUARIUM WATER PUMP ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 11h 5m |
 Aquarium Pond Air Flow Control Lever Pump Valve 6 Way $7.96 Time Remaining: 27d 6h 56m Buy It Now for only: $7.96 |
 GAIN 480GPH SUBMERSIBLE FRESH SALT WATER FISH TANK POND PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 9h 28m |
 Lees Small Triple Flow Air Pump Driven Corner Filter aquarium fish tank filter $9.96 Time Remaining: 24d 13h 25m Buy It Now for only: $9.96 |
 FINE 480GPH SUBMERSIBLE FRESH SALT WATER FISH TANK POND PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 10h 2m |
 600L H Multifunctional Water Pump Adjustable Flow Rate For Fish Aquarium Tank $12.99 Time Remaining: 11d 21h 8m Buy It Now for only: $12.99 |
 800 GPH PUMP WATERFALL 1200 GALLON KOI POND ADJUST FLOW $54.99 Time Remaining: 25d 9h 53m Buy It Now for only: $54.99 |
 GAIN 800GPH FISH TANK AQUARIUM WATER PUMP GARDEN POND ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 14h 41m |
 Aquarium and Over Flow Return tube Nozzel $11.98 Time Remaining: 10d 2h 52m Buy It Now for only: $11.98 |
 FINE 480GPH SUBMERSIBLE AQUARIUM KOI LOTUS POND WATER PUMP ADJUSTABLE FLOW $33.00 Time Remaining: 10h 5m |
 Air Flow 10 Way Distributor Valve Pump Silver Tone $11.60 Time Remaining: 21d 15h 9m Buy It Now for only: $11.60 |
 GAIN 480 GPH SUBMERSIBLE AQUARIUM POND WATER PUMP 1500 L H FLOW ADJUSTABLE $33.00 Time Remaining: 10h 25m |
 480 GPH SUBMERSIBLE AQUARIUM POND WATER PUMP 1500 L H FLOW ADJUSTABLE $33.49 Time Remaining: 3d 13h 57m Buy It Now for only: $33.49 |
 GAIN AQUARIUM FISH TANK WATER PUMP GARDEN POND 670GPH ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 13h 34m |
 CPR Flow Eductor Accelerator High volume flow 1 $26.00 Time Remaining: 14d 5h 2m Buy It Now for only: $26.00 |
 GAIN 670 GPH PUMP WATERFALL 900 GALLONS KOI POND ADJUST ADJUSTABLE FLOW $43.95 Time Remaining: 13h 45m |
 New AQUARIUM FISH TANK FLOW ADJUSTABLE AIR PUMP QUIET 40GAL $7.49 Time Remaining: 29d 6h 3m Buy It Now for only: $7.49 |
 CPR Flow Eductor Accelerator High volume flow 3 4 $26.00 Time Remaining: 14d 5h 2m Buy It Now for only: $26.00 |
 GAIN 670 GPH PUMP WATERFALL LOTUS KOI POND ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 14h 28m |
 TAAM Hyperflow 10 Hyper Flow 10 Powerhead Rio 10HF $30.25 Time Remaining: 4h 39m Buy It Now for only: $30.25 |
 FINE 800GPH FOUNTAIN KOI POND AQUARIUM WATER PUMP ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 15h 7m |
 Taam Rio 32 Hyper Flow Water Pump $110.00 Time Remaining: 9d 5h 30m Buy It Now for only: $110.00 |
 FINE 480 GPH SUBMERSIBLE AQUARIUM POND WATER PUMP 1500 L H FLOW ADJUSTABLE $33.00 Time Remaining: 13h 50m |
 3W Aquarium FishTank Waver Wave Maker Pump Flow Direction Adjustable $13.88 Time Remaining: 7d 3h 34m Buy It Now for only: $13.88 |
 GET 800 GPH PUMP WATERFALL 1200 GALLON KOI POND ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 1d 2h 46m |
 TOM Aquarium Mini Internal Filter 45gph adjustable flow New Filters Pumps Pets $23.60 Time Remaining: 25d 12h 34m Buy It Now for only: $23.60 |
 Lees Medium Triple Flow Air Pump Driven Corner Filter aquarium fish tank filter $11.46 Time Remaining: 24d 13h 25m Buy It Now for only: $11.46 |
 GET 800GPH FISH TANK AQUARIUM WATER PUMP GARDEN POND ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 1d 5h 57m |
 120V 240L H Air Pump Adjustable Flow 2 Outlet for 2 Stones Aquarium Fish Tank $15.99 Time Remaining: 3d 16h 28m Buy It Now for only: $15.99 |
 GET 800GPH SUBMERSIBLE MULTI USE ADJUST FLOW ADJUSTABLE WATER PUMP $52.00 Time Remaining: 1d 7h 35m |
 Sure Flow 1600 Maxi Jet Mod Kit Maxijet 600 900 1200 $17.95 Time Remaining: 25d 8h 43m Buy It Now for only: $17.95 |
 GET 670 GPH PUMP WATERFALL 900 GALLONS KOI POND ADJUST ADJUSTABLE FLOW $43.95 Time Remaining: 1d 4h 7m |
 Aquarium UV Reactor Pump Flow Meter TOM $11.65 Time Remaining: 25d 12h 24m Buy It Now for only: $11.65 |
 GET 670GPH FOUNTAIN KOI POND AQUARIUM WATER PUMP ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 1d 5h 7m |
 Taam Seio 820 M820 Super Aquarium Water Flow Pump Powerhead 820 gph NIB $44.78 Time Remaining: 25d 5h 12m Buy It Now for only: $44.78 |
 GET 800GPH FOUNTAIN KOI POND AQUARIUM WATER PUMP ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 1d 5h 50m |
 3 Pcs Fish Tank Aquarium Air Pump Flow Control Valve $4.78 Time Remaining: 17d 14h 59m Buy It Now for only: $4.78 |
 AquaEuroUSA EU 590 Submersible Pump w Flow Control $56.95 Time Remaining: 23d 12h 28m Buy It Now for only: $56.95 |
 GET 480GPH SUBMERSIBLE FRESH SALT WATER FISH TANK POND PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 1d 1h 51m |
 Aqueon Quiet Flow 30 Aquarium Power Filter Up To 30 Gal $19.99 Time Remaining: 10h 22m Buy It Now for only: $19.99 |
 GET AQUARIUM FISH TANK WATER PUMP GARDEN POND 670GPH ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 1d 15h 31m |
 3W Aquarium FishTank Waver Wave Maker Pump Flow Direction Adjustable $13.88 Time Remaining: 23d 18h 4m Buy It Now for only: $13.88 |
 GET 670 GPH PUMP WATERFALL LOTUS KOI POND ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 1d 16h 9m |
 Taam Rio 17 Hyper Flow Water Pump $77.00 Time Remaining: 2h Buy It Now for only: $77.00 |
 Whisper 800 Variable Flow Aquarium Pump $3.00 Time Remaining: 2d 22h 20m Buy It Now for only: $6.00 |
 Lees Triple Flow Corner Filter Small New Filters Pumps Pets Aquatic Fish $13.41 Time Remaining: 25d 12h 29m Buy It Now for only: $13.41 |
 Aquatec CDP 8800 High Flow 24v Booster Pump $85.00 Time Remaining: 2d 17h 50m Buy It Now for only: $85.00 |
 GET 480GPH SUBMERSIBLE AQUARIUM KOI LOTUS POND WATER PUMP ADJUSTABLE FLOW $33.00 Time Remaining: 1d 12h 8m |
 TAAM Seio Prop Pump SP 1000 gph Aquarium High Flow Powerhead with Magnet Mount $49.00 Time Remaining: 3d 6h 1m Buy It Now for only: $49.00 |
 NEW TETRA TEC AP200 60 GALLON AQUARIUM AIR PUMP WITH FLOW CONTROLS $20.00 Time Remaining: 1d 8h 57m |
 HOT Magnum Marineland Aquarium Filter Parts all parts NEW $4.99 Time Remaining: 25d 8h 44m Buy It Now for only: $4.99 |
 GET 480 GPH SUBMERSIBLE REEF CORAL FISH TANK AQUARIUM PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 1d 15h 12m |
 Lees Large Triple Flow Air Pump Driven Corner Filter aquarium fish tank filter $12.46 Time Remaining: 24d 13h 25m Buy It Now for only: $12.46 |
 GET 480 GPH SUBMERSIBLE AQUARIUM POND WATER PUMP 1500 L H FLOW ADJUSTABLE $33.00 Time Remaining: 1d 15h 23m |
 Impeller for Seio 620 Super Flow Pump IM 620SE $14.89 Time Remaining: 18d 5h 9m Buy It Now for only: $14.89 |
 GET 480 GPH FRESH SALT WATER FISH TANK MARINE AQUARIUM PUMP FLOW ADJUSTABLE $33.00 Time Remaining: 1d 16h 11m |
 Marineland MN606UL Mini Jet Adjustable Flow Pump 606 82 153 GPH $31.79 Time Remaining: 29d 6h 11m Buy It Now for only: $31.79 |
 4 x Air Flow Control Lever Pump Single Way Valve for Fish Tank $5.71 Time Remaining: 24d 17h 57m Buy It Now for only: $5.71 |
 CHEAP 800GPH SUBMERSIBLE MULTI USE ADJUST FLOW ADJUSTABLE WATER PUMP $52.00 Time Remaining: 2d 8h 39m |
 Air Flow 10 Way Distributor Valve Pump Silver Tone $12.71 Time Remaining: 15d 22h 40m Buy It Now for only: $12.71 |
 CHEAP 800 GPH PUMP WATERFALL 1200 GALLON KOI POND ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 2d 10h 34m |
 TAAM Seio 1500 M1500 Super Aquarium Water Flow Pump Powerhead 1500 gph NIB $57.60 Time Remaining: 13d 6h 13m Buy It Now for only: $57.60 |
 CHEAP 800GPH FOUNTAIN KOI POND AQUARIUM WATER PUMP ADJUST FLOW ADJUSTABLE $52.00 Time Remaining: 2d 11h 9m |
 Check valve for air pump Co2 system prevent back flow $2.99 Time Remaining: 23d 2h 14m Buy It Now for only: $2.99 |
 CHEAP AQUARIUM FISH TANK WATER PUMP GARDEN POND 670GPH ADJUST FLOW ADJUSTABLE $43.95 Time Remaining: 2d 7h 51m |
 MarineLand Penguin Constant Flow Power Head 1140 Aquarium Pump Main Unit $18.95 Time Remaining: 27d 7h 28m Buy It Now for only: $18.95 |
Flow Pump
Fun Facts About Pumps
An electrically driven pump is known as an electropump.
A pump is a mechanical device. used to move fluid, such as gas, liquid or slurry.
Pumps operate by displacing a volume by a physical or mechanical action.
Pumps alone do not create pressure. Pumps only displace fluid, causing a flow. Adding resistance to the flow causes pressure.
Pumps fall into two main groups: positive displacement and rotodynamic. Their names describe their method for moving a fluid.
Pump efficiency can be defined as the ratio of the power imparted on the fluid by the pump in relation to the power supplied to drive the pump.
Pump efficiency is an important aspect and pumps ought to be regularly tested. Thermodynamic pump testing is one method of Pump efficiency testing.
Pumps are commonly rated by the following criteria: horsepower, flow rate, outlet pressure in feet / metres of head, inlet suction in suction feet / metres of head. The head is the number of feet or metres the pump can raise or lower a column of water at atmospheric pressure.
Engineers often use a quantity termed the 'specific speed' to identify initially the most suitable pump type for a particular combination of flow rate and head.
A Positive displacement pump causes fluid to move by trapping a fixed amount of it then forcing (displacing) that trapped volume into the discharge pipe. A positive displacement pump can be further classified according to the mechanism used to move the fluid, Rotary-type, (e.g., the lobe, external gear, internal gear, screw, shuttle block, flexible vane or sliding vane, helical twisted roots e.g. the Wendelkolben or liquid ring vacuum pump) or Reciprocating-type, e.g., the piston or diaphragm pump.)
Pumps are used for a variety of purposes. Early applications includes the use of the windmill or watermill to pump water. Today, pumps are used for irrigation, water supply, gasoline supply,air conditioning systems, refrigeration (usually called a compressor), chemical movement,sewage movement, flood control / relief, marine services, etc.
Because of the wide variety of applications, pumps have a variety of shapes and sizes: from large to very small, from handling gas to handling liquid, from high to low pressure, and from high to low volume.
Liquid / slurry pumps can lose prime and this will require the pump to be primed by adding liquid to the pump and inlet pipes to get the pump started. Loss of "prime" is due to ingestion of air into the pump. The clearances and displacement ratios in pumps used for liquids and other more viscus fluids cannot displace the air due to its lower density.
One sort of pump once common worldwide was a hand-powered water pump over a water well where people could work it to extract water, before communities had individual water supplies. From this came the expression "parish pump" for "the sort of matter chattered about by people when they meet when they go to get water", "matter of only local interest". However water from pitcher pumps are more prone to contamination since it is drawn directly from the soil and thus doesn't undergo filtration, this may cause gastrointestinal related diseases.
Today, hand operated village pumps are still considered the most sustainable low cost option for safe water supply in resource poor settings, often in rural areas in developing countries. A hand pump may open access to deeper groundwater that is often not polluted and also improves the safety of a well by protecting the water source from contaminated buckets. Pumps like the Afridev pump are designed to be cheap to build / install, and easy to maintain with simple parts. However, scarcity of spare parts for these type of pumps in some regions of Africa may diminish their use for these areas.
Rotary-type pumps include the Gear pump, Progressing cavity pump, Roots-type pumps, Peristaltic pumps
Reciprocating-type pumps include the Compressed-air-powered double-diaphragm pumps
Rotodynamic pumps (or dynamic pumps) include the centrifugal pump, Radial flow pumps, Axial flow pumps, Mixed flow pumps and Eductor-jet pumps.
Types of Multiphase Pumps include Helico-Axial (Centrifugal), Twin Screw (Positive Displacement), Progressive Cavity (Positive Displacement)
And Electric Submersible Pumps (Centrifugal).
A hydraulic ram is a water pump powered by hydropower
About the Author
Albert Beetons wrote this article on behalf of
London Pump Servicing, Repairs & Installation
Which efficiency is better in cooling Water Flow Rate (One Way) around a Reciprocating Pump. Fast or Slow ?
In my Water Jet Granite Cutting M/c. the reciprocating water pump works at 70,000psi. There is a one way water cooling system around the pump. What flow rate is better, Fast or Slow ? to maintain the reciprocating pump.
The slow rate will need less pumping power but the cooling water will heat up more. If the cooling water outlet temperature is still quite low using slow rate then it will be ok. If however the water outlet from the machine is getting very hot, better stick to the fast rate.
New heart pump extends life of heart failure patients