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Multistage pumps refer to the different stages of pumping in the process of forcing liquid, typically water, through its components. Multistage pumps are common across applications where liquids need to be transported with high pressure, achieving this with the use of multiple impellers or stages in the body of the pump.
As the flow progresses through multiple stages, pressure is built within the pump that enables it to move contents a longer distance. These pumps are commonly used in pressure boosting systems where circumstances demand constant pressure and flow such as in high density living, industrial applications requiring substantial wash down facilities, boiler feed systems, jacking pumps for fire hydrant systems, fire hose reel supply and irrigation systems. Javelin offers a complete range of high quality vertical, horizontal and submersible borehole multistage pumps from single pumps to complete pressure systems and stock all sizes of pumps. These pumps can be driven by a number of motor options from solar powered electric motor to diesel and petrol motor options.
All Pumps offers a wide range of multistage pumps, and has experience and expertise in hundreds of different applications of this type of pump.
The JV, JVI and JVN series are a non-self priming vertical multistage centrifugal pumps of inline design, flanged or with victaulic coupling, equally sized suction and discharge ports, stage construction with stainless steel impellers, chambers and pressure casing.
Water supply and pressure boosting: Pressure boosting in buildings, hotels, residential complexes, pressure booster stations, supply of water networks, pressure boosting for industrial water supply. Light industry: Washing and cleaning systems, car washing facilities fire fighting systems, process water systems, machine tools (cooling lubricants). Heating, ventilation and air-conditioning: boilers, induction heating, heat exchangers, refrigerators, cooling towers and systems, temperature control systems. Irrigation and agriculture: greenhouses, sprinkler irrigation, flood irrigation. Water Treatment: Water softeners and demineralization, reverse osmosis systems, distillation systems, filtration, ultra-filtration system.
The JV,JVI and JVN pumps are non-self priming vertical multistage pump of inline design, threaded, flanged or with victaulic coupling with equally sized suction and discharge ports. Stage construction with stainless steel impellers, chambers and pressure casing. Pump shaft & motor shaft of the IEC-standard motor are directly close coupled. All pumps are equipped with a cartridge type mechanical seal for easy maintenance. JV, JVI and JVN pumps have different pump sizes and various number of stages to provide the flow and the pressure required.
Squirrel cage, aluminium or cast iron casing up to 45 kW, totally enclosed, fan-cooled, 2-pole standard motor.
Enclosed class: IP55
Insulation class: F
P2:0.37 - 7.5 kW : 3 x 220 - 240V/380 - 415 V
P2: From 11 kW 3 x 380 - 415
The motors have efficiency values that fall within the range referred to as MEPS2
Ambient temperature: Max. + 50°C
The JH, JHI series are non-self priming, horizontal multistage centrifugal pumps. The pump is close coupled to the motor and mounted on a base plate.
The JH and JHI series are non-self priming, horizontal multistage centrifugal pumps. The Pump is close coupled to an electric motor with a common shaft and mounted on a base-plate. This design makes the pump suitable for installation in the small domestic or industrial water supply systems. The pump is fitted with a mechanical seal and common pump-motor shaft.
JH - The discharge and suction chamber are made of cast iron. The other parts of pump in contact with the liquid are made of stainless steel.
JHI - All parts of the pump in contact with the liquid being pumped are made of stainless steel. EPDM or Viton elastomers are available as standard.