VERTICAL MULTISTAGE PUMPS

A centrifugal pump with a single impeller that can develop a differential pressure of more than 150 psi between the suction and the discharge is difficult and costly to design and construct. A more economical approach to developing high pressures with a single centrifugal pump is to include multiple impellers on a common shaft within the same pump casing. Internal channels in the pump casing route the discharge of one impeller to the suction of another impeller.

All Pumps stock, supply, and service a wide range of vertical multistage centrifugal pumps. The most popular brand is Javelin Pumps, which is manufactured by All Pumps.

VERTICAL MULTISTAGE CENTRIFUGAL PUMP MANUFACTURERS

JAVELIN PUMPS

The JV, JVI, and JVN series are 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.

Pump stub shaft and motor shaft of the IEC-standard motor are directly closed 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 numbers of stages to provide the flow and the pressure required.

OVERVIEW

PERFORMANCE SCOPE

APPLICATIONS

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.

PUMP

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.

ELECTRIC MOTORS

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
Standard voltage:
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

DEFINITION OF MODEL