Water Pumps

Water, by nature always moves from an area of high pressure to an area of low pressure. A water pump is a mechanical device that can circulate water or raise it from one level to another.
How does a water pump work?
Water pumps draw existing water in to the pump by suction through an inlet point. The inlet point has a lower rate of pressure than the outlet point. A water pump is designed to increase the rate that the water is flowing to create a vacuum. At this point, the outlet point has a high-pressure level which forces out the water.
Water pumps come in various forms, selecting the best one for the application depends on several factors. Things to consider are;
Water quality - Is the water clean, dirty or foul? Does the water contain any semi-solid or solid matter?
Amount of water – What is the amount of water to be moved or drained? This is essential as pumps have a maximum flow rate usually in litres per minute.
Inlet and outlet points - Does the pump selected require solid pipework or hose for the inlet and outlet points. What is the size of the pipework or hose? Are they threaded connections or are do they accept a tube with an O/D in mm?
Mechanical seals - Are the seals within the pump suitable for the job?
Types of water pump
• Centrifugal water pumps are ideal for pumping higher flow rates
• Dirty water pumps are ideal for pumping dirty or foul water
• Submersible water pumps are ideal for pumping flooded areas, submersible pumps usually have the option of a float switch
• Petrol water pumps are ideal for draining out ditches and trenches
Applications
Water pumps are used in various applications across a wide range of industries. Some of the most common are;
• Waste water processing plants, irrigation and drainage
• Food and beverage production
• Oil and energy, power plants and refineries
• Heating, ventilation and air conditioning
• Water feature and ponds
• Aquarium and fish tanks

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Description Price Maximum Flow Rate Supply Voltage Input Connection Maximum Head Maximum Working Pressure Body Material Coupling Type Input Power Maximum Fluid Temperature Input Connection Size Output Connection Size IP Rating
RS Stock No. 667-9122
Mfr. Part No.LVM111
BrandXylem LVM
HK$605.37
Each
units
31.8L/min 12 V dc 3/4 in Hose Barb - 1 bar Acetal Direct 72W +80°C 38mm 19mm -
RS Stock No. 178-2437
Mfr. Part No.06863
BrandSIP
HK$531.71
Each
units
150L/min 230 V - 8m - - - 400W +35°C - 25.4mm IPX8
RS Stock No. 817-0693
BrandRS PRO
HK$603.20
Each
units
400ml/min 4.5 V 2.4 mm Tube - 155 mbar Aluminium Alloy Direct 1.85W +100°C 2.4mm 3mm IP67
RS Stock No. 125-3579
BrandRS PRO
HK$840.91
Each
units
2685ml/min 12 V - - 380 mbar Anodised Aluminium - 7.1W - - - IP45
RS Stock No. 705-9318
Mfr. Part No.LVM175
BrandXylem LVM
HK$1,018.32
Each
units
31.8L/min 24 V 3/4 in Hose Barb 9m 1 bar POM - - +80°C 3/4in 3/4in -
RS Stock No. 144-9301
Mfr. Part No.109439181
BrandXylem
HK$4,501.96
Each
units
135L/min 230 V, 230 → 240 V - - - - - 0.25kW +40°C - - -
RS Stock No. 817-0725
BrandRS PRO
HK$942.39
Each
units
-360 ml/min, 580 ml/min 4.5 V 2.4 mm Tube - -8 psi, 11 psi Anodised Aluminium Direct 0.4W +100°C 2.4mm 3mm IP41, IP67
RS Stock No. 763-2512
Mfr. Part No.107330010XAA
HK$5,434.13
Each
units
70L/min 230 V 1-1/4 in Rp 30m 8 bar Stainless Steel Direct 0.97kW +110°C 1-1/4in 1in IP55
RS Stock No. 817-0728
BrandRS PRO
HK$900.39
Each
units
-420 ml/min, 620 ml/min 6 V 2.4 mm Tube - -8 psi, 12 psi Anodised Aluminium Direct 0.7W +100°C 2.4mm 3mm IP41, IP67
RS Stock No. 193-8712
Mfr. Part No.3933
BrandSIP
HK$2,718.43
Each
units
600L/min - - 28m - - - 5.2kW - - - -
RS Stock No. 144-9348
Mfr. Part No.446932
BrandXylem
HK$2,444.27
Each
units
50L/min 230 V 1/2 in BSP 6m - Polypropylene Magnetic 0.06kW - - - IPX5
RS Stock No. 480-184
BrandRS PRO
HK$530.32
Each
units
150ml/min 6 V 2.4 mm Tube 0.4m 40 mbar Anodised Aluminium Direct 0.42W +120°C 2.4mm 2.4mm IP64
RS Stock No. 667-9163
Mfr. Part No.BGM5/A
HK$5,287.39
Each
units
60L/min 230 V 1-1/4 in Rp 40.2m 8 bar Stainless Steel Direct 0.91kW +40°C 1-1/4in 1in IP55
RS Stock No. 817-0781
BrandRS PRO
HK$1,285.01
Each
units
- 6 → 24 V 8 mm Tube - - Aluminium Alloy Direct - +100°C 8mm 8mm IP67, IP68
RS Stock No. 214-5206
Mfr. Part No.555039
HK$4,525.23
Each
units
160L/min 1 → 240 V - 7m - Stainless Steel - - +50°C - 1-1/4in -
RS Stock No. 914-6950
BrandRS PRO
HK$649.12
Each
units
661ml/min 4 V 3.2 mm Tube - 323 mbar Aluminium - 2W +100°C 3.2mm - IP45, IP67
RS Stock No. 702-6885
BrandRS PRO
HK$950.46
Each
units
2800ml/min 12 V 5 mm Tube 3.5m 325 mbar Aluminium - 6W +100°C 5mm 5mm IP67
RS Stock No. 125-3556
BrandRS PRO
HK$1,734.47
Each
units
3.8L/min - - - 1.5 bar Anodised Aluminium - - - - - IP68
RS Stock No. 480-138
BrandRS PRO
HK$509.02
Each
units
650ml/min 6 V 3.2 mm Tube 1.9m 190 mbar Anodised Aluminium Direct 1.6W +120°C 3.2mm 3.2mm IP64
RS Stock No. 125-3560
BrandRS PRO
HK$2,503.18
Each
units
500ml/min 6 → 24 V - - 8 bar Anodised Aluminium - 3 → 30W - - - IP68