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 Output Connection Maximum Head Maximum Working Pressure Series Body Material Coupling Type Input Power Maximum Fluid Temperature Input Connection Size Output Connection Size Wetted Materials
RS庫存編號 702-6885
BrandRS PRO
HK$774.27
單位
2800ml/min 12 V 5 mm Tube - 3.5m 325 mbar - Aluminium - 6W +100°C 5mm 5mm -
RS庫存編號 817-0731
BrandRS PRO
HK$1,729.70
單位
850ml/min 6 → 24 V 4 mm Tube 6 mm Push-Fit Pneumatic - 6 bar - Aluminium Alloy Direct 30W +100°C 4mm 6mm Anodised Aluminium (Housing), PEEK (Gear), Polyacetal (Volute), Stainless Steel (Tubing Connector), Viton (Seal)
RS庫存編號 817-0712
BrandRS PRO
HK$501.54
單位
-380 ml/min, 450 ml/min 6 V 2.4 mm Tube 3 mm Barb - -8 psi, 10 psi - Glass Filled Nylon Direct 0.7W +100°C 2.4mm 3mm Glass Filled Nylon (Tubing Connector), Silicone-Nitrile/EPDM/Viton (Seals)
RS庫存編號 817-0719
BrandRS PRO
HK$859.78
單位
1150ml/min 12 V 3.2 mm Tube 4 mm Barb - 380 mbar - Aluminium Alloy Direct 5.8W +100°C 3.2mm 4mm Anodised Aluminium (Housing), Polyacetal (Impeller), Stainless Steel (Tubing Connector), Viton (Seal)
RS庫存編號 817-0693
BrandRS PRO
HK$470.86
單位
400ml/min 4.5 V 2.4 mm Tube 3 mm Barb - 155 mbar - Aluminium Alloy Direct 1.85W +100°C 2.4mm 3mm Stainless Steel, Viton/EPDM
RS庫存編號 125-3563
BrandRS PRO
HK$1,857.97
單位
850ml/min 6 → 24 V - - - 4 bar - Anodised Aluminium - 3 → 30W - - - Anodised Aluminium, PEEK, Polyacetal, Viton, 316 Stainless Steel
RS庫存編號 125-3574
BrandRS PRO
HK$375.00
單位
122ml/min 6 V - - - 43 mbar - Anodised Aluminium - 0.25W - - - Anodised Aluminium, EPDM, Polyacetal, Viton, 316 Stainless Steel
RS庫存編號 125-3562
BrandRS PRO
HK$2,035.72
單位
400ml/min 6 → 24 V - - - 10 bar - Anodised Aluminium - 3 → 30W - - - Anodised Aluminium, PEEK, Polyacetal, Viton, 316 Stainless Steel
RS庫存編號 667-9129
製造零件編號LVM117
BrandXylem LVM
HK$424.29
單位
18L/min 24 V 1/2 in Hose Barb 1/2 in Hose Barb - 1 bar LVM POM - 54W +80°C 1/2in 1/2in -
RS庫存編號 178-2437
製造零件編號06863
BrandSIP
HK$486.72
單位
150 230 V - 1 in BSP 8m - SUB 1040-FS - - 400W +35°C - 25.4mm -
RS庫存編號 125-3587
BrandRS PRO
HK$2,035.72
單位
500ml/min 6 → 24 V - - - 8 bar - Anodised Aluminium - 3 → 30W - - - Anodised Aluminium, PEEK, Polyacetal, Viton, 316 Stainless Steel
全新
RS庫存編號 185-6135
製造零件編號164.0126
BrandVerderflex
HK$1,508.75
單位
375ml/min 24 V dc - - 86mm 1 bar - - - - - - - -
RS庫存編號 125-3573
BrandRS PRO
HK$448.06
單位
- - - - - - - Anodised Aluminium - - - - - Anodised Aluminium, EPDM, Polyacetal, Viton, 316 Stainless Steel
RS庫存編號 667-9126
製造零件編號LVM112
BrandXylem LVM
HK$629.13
單位
31.8L/min 24 V 3/4 in Hose Barb 3/4 in Hose Barb - 1 bar LVM112 POM - 72W +80°C 3/4in 3/4in -
全新
RS庫存編號 185-6134
製造零件編號164.0165
BrandVerderflex
HK$1,508.75
單位
375ml/min 24 V dc - - 86mm 1 bar - - - - - - - -