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Vertical Multistage Centrifugal Pumps See all Applications

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A centrifugal pump with a single impeller that can develop a differential pressure of more than 150 psid 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.

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Response within 6 Hours

Javelin Pumps

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.

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.

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Vertical-multistage-centrifugal-pumps
Vertical Multistage Centrifugal Pumps
  • Overview
  • Product Data
  • Motor & Seals
  • Sectional Drawing
  • Maximum Pressure

Performance Scope

Vertical Multistage Centrifugal Pumps 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

Model Definition

Product Data

Range JV, JVI, JVN
1 3 5 10 15 20 32 45 64 90
50Hz
Nominal Flow (m3/h) 1 3 5 10 15 20 32 45 64 90
Flow Range (m3/h) 0.7-2.4 1.2-4.5 2.5-8.5 5-13 8.5-23.5 10.5-29 15-40 22-58 30-85 45-120
Max. pressure (bar) 21.5 23 24 21.5 23 24.3 27.5 33 21.8 20
Fluid Temperature (ºC) -15 to +120
Motor Power (kW) 0.37-2.2 0.37-3 0.37-5.5 0.37-7.5 1.1-15 1.1-18.5 1.5-30 3-45 4-45 5.5-45
Version
JV
Cast Iron and Stainless Steel
EN1.4301/AISI304 		. . . . . . . . . .
JVI
Stainless Steel EN 1.4301/AISI304		 . . . . . . . . . .
JVN
Stainless Steel EN1.4401/AISI 316		 . . . . . . . . . .
Motor
Main Connection 1 ~ (V/Hz)
(Permissible voltage tolerance
±10%)		 220-240 V 50 Hz
Main Connection 3 (V/Hz)
(Permissible Voltage tolerance
±10%)		 0.37-7.5 kW 220-240/380-415 V 50 Hz
From 11 kW 380-415 V 50 Hz
Insulation Class F
Protection Class IP 55
Ambient Temperature 50°C
JV Pipe Connection
Flange DN 25 DN 40 DN 50 DN 50 DN 65 DN 80 DN 100 DN 100
DN 32
JVI, JVN Pipe Connection
Flange DN 25 DN 40 DN 50 DN 50 DN 65 DN 80 DN 100 DN 100
DN 32
Victaulic Connection R 1¼ R2 N/A N/A N/A N/A
DN 32 DN 50
SIC/SIC Standard
Seals
EPDM Standard
Viton

Motor

Motor Type Nominal Current in [A]
HP kW Pole Flange Frame 1˜240 V 3 ˜240 V 3 ˜415 V
0.5 0.37 2 B14 71 2.4 2 1.3
0.75 0.55 71 3.5 2.8 1.7
1.0 0.75 80 4.5 3.9 2.3
1.5 1.1 90S 6.5 4.7 2.9
2.0 1.5 90S 8.6 5.7 3.3
3.0 2.2 90L 12.5 8 4.6
4.0 3.0 100L   11.4 6.6
5.5 4.0 112M   16.3 9.4
7.5 5.5 B5 132S   20.8 12
10.0 7.5 132M   26.7 15.4
15 11 160M     20
20.0 15.0 160M     25.5
25 18.5 160L     32.4
30 32 180M     38.2
40 30 180L     50.4
50 37 200L     65.6
60 45 200L     79.2

Mechanical Seals

Standard Cartridge type mechanical seal made of Silicon Carbide/Silicon Carbide/ EPDM or Viton. Based on the type of application, alternative materials are available for the seal and the elastomers. The cartridge type mechanical seal can be replaced in minutes without special tools and without dismantling the pump.

Mechanical Seals

List of Materials

Q: Silicon carbide E: EPDM
U: Tungsten carbide V: Viton
B: Carbon

Type of Seal

Seal Type JV 1-90 JVI 1-90 JVN1-90
Mechanical Seals
S : Cartridge Seal . . .
QQ . . .
UU Optional Optional Optional
UB Optional Optional Optional
Seals
E . . .
V . . .

Sectional Drawing

Sectional Drawing

POS Name Material JV 1,3,5,10,15,
20,32,45,64,90		 JVI 1,3,5,10,15,
20,32,45,64,90		 JVN 1,3,5,10,15,
20,32,45,64,90
Standard Standard Standard
EN/DIN AISI/ASTM EN/DIN AISI/ASTM EN/DIN AISI/ASTM
36 Pump Head Cast Iron EN-GJL-200 ASTM 25B ENGJS-450-10 ASTM 70-50-05 1,4401 ASTM 70-50-05
56 Pump Head Over Stainless Steel N/A 1,4301 AISI 304 1,4401 AISI 316
18 Impeller Stainless Steel 1,4301 AISI 304 1,4301 AISI 304 1,4401 AISI 316
37 Shaft Stainless Steel 1,4057 AISI 431 1,4357 AISI 431 1,4401 AISI 316
48 Outer Sleeve Stainless Steel 1,4301 AISI 304 1,4301 AISI 304 1,4401 AISI 316
82 O-Ring for Outer
Sleeve		 EPDM Standard
12 Chamber Stainless Steel 1,4301 AISI 304 1,4301 AISI 304 1,4401 AISI 316
24 Neck Ring PTFE Standard
59 Base Cast Iron EN-GJL-200 ASTM 25B N/A
Base Stainless Steel N/A 1,4301 AISI 304 1,4401 AISI 316
62 Base Plate Cast Iron N/A EN-GJL-200 ASTM 25B EN-GJL-200 ASTM 25B
44 Coupling Fe-Cu-C SINT C11 MPIF FC0525 SINT C11 MPIFI FC0525 SINT C11 MPIF FC0525
57 Mechanical Seal Cartridge type

Maximum Operating & Inlet Pressure

Stages Minimum Operating Pressure Stages Maximum Inlet Pressure
JV, JVI, JVN 1
2-36 25 BAR 2 - 36 10 BAR
JV, JVI, JVN 3
2-36 25 BAR 2 - 29 10 BAR
31 - 36 15 BAR
JV, JVI, JVN 5
2-36 25 BAR 2 - 16 10 BAR
18 - 36 15 BAR
JV, JVI, JVN 10
1-16 16 BAR 1 - 6 8 BAR
17-22 25 BAR 7 - 22 10 BAR
JV, JVI, JVN 15
1-10 16 BAR 1 - 6 8 BAR
12-17 25 BAR 4 - 17 10 BAR
JV, JVI, JVN 20
1-10 16 BAR 1 - 3 8 BAR
12-17 12 BAR 4 - 17 10 BAR
JV, JVI, JVN 32
(1-1) - 7 16 BAR (1-1) - 4 4 BAR
(8-2) - 14 30 BAR (5-2) - 10 10 BAR
(11-1) - 14 15 BAR
JV, JVI, JVN 45
(1-1) - 5 16 BAR (1-1) - 2 4 BAR
(6-2) - 11 30 BAR (3-2) - 5 10 BAR
(12-2) - (13-2) 33 BAR (6-2) - (12-2) 15 BAR
JV, JVI, JVN 64
(1-1) - 5 16 BAR (1-1) - (2-2) 4 BAR
(6-2) - (8-1) 30 BAR (2-1) - (4-2) 10 BAR
(4-1) - (8-1) 15 BAR
JV, JVI, JVN 90
(1-1) - 4 16 BAR (1-1) - 1 4 BAR
(5-2) - 6 30 BAR (2-1) - (3-2) 10 BAR
3 - 6 15 BAR
  • Rule to follow: The inlet pressure + pressure against a closed valve < Max Operating Pressure
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Ask The Experts

Response within 6 Hours
  • Performance Curves
  • Minimum Inlet Pressure
  • Pumped Liquids

Performance Curves

Conditions for the performance curves:

  1. All the performance curves are based on the measured values of a motor 3x380V ~ 415V at a constant speed of 2900 rpm.
  2. Curve tolerance in conformity with ISO9906, Appendix A.
  3. Measurement is done with 20°C air-free water, kinematic viscosity of 1mm²/sec.
  4. The operation of pump shall refer to the performance region indicatied by the thickened curve to prevent overheating due to too small flow rate or overload of motor due to too large flow rate.

Minimum Inlet Pressure NPSH

If the pressure in pump is lower than the vapour pressure used to convey liquid, cavitation will occur. To avoid cavitation, a minimum pressure at the inlet side of the pump shall e guaranteed. The maximum suction lift can be calculated with following formula:

H = Pb x 10.2 - NPSH - Hf - Hv - Hs

Pb = atmosphere pressure [bar] (can be set as 1 bar) In a closed system, Pb means system pressure [bar] NPSH = Net positive suction head [m], it can be read out from the point of possible Max. Flow rate shown on NSPH curve:

Hf = Pipeline loss at the inlet [m]
Hv = Steam pressure [m]
Hs = Safety margin Minimum 0.5 delivery head

If calculated result H is positive, the pump may run under he Max suction lift H. In case the case the calculated result H is negative, a delivery head of min. inlet pressure is necessary.

Inlet Pressure Drawing

Operation in Parallel

  • Connecting several pumps in a parallel running mode will benefit the reliability of the system compared to a single pump system.
  • Application to different working states required by a variable flow system.
  • Increasing the availability of water supply if a pump fails; only a part of the system flow is affected.

Operation Graph

Pumped Liquids

JV, JVi, JVN

pumps can handle a wide variety of liquids, each with its own characteristic

JV,JVI

Non-corrosive liquids. For fluids transfer, circulation and pressure boosting of cold or hot clean water.

JVN

  • Industrial Liquids
  • Light Acids

The fluids covered in the list are not complete. Data on the application of different pump materials when handling any of the listed fluids are considered to be the best choices. However the table is intended as a general guide only, and cannot replace actual testing of the pumped fluids and pump materials under specific conditions. When choosing the pump version, sufficient attention should be given to the flow medium, such as density, solidification point, viscosity as well as ex-protection requirements. The limits of applicability of the pumps, based on pressure and temperature must also be considered.

Pumped Fluid Fluid Concentration Temperature JVI JVN
EPDM VITON EPDM VITON
Acetic acid anhydride 25°C .
Alkaline cleaner   .  
Aluminium sulphate 10%, 25°C   .
Ammonia water (A. hydroxide) 20%, 40°C .  
Ammonia hydrogen carbonate 10%, 40°C . .
Benzoic acid 10%, 90°C   .
Boric acid Unsaturated solution, 60°C   .
Butanol 60°C   .
Calcium acetate 30%, 50°C .  
Calcium hydroxide Saturated solution, 50°C .  
Chromic acid 1%, 20°C   .
Condensate 90°C .  
Cooper sulphate Unsaturated solution, 60°C   .
Delonic (fully desalinated water) 50°C .
Ethanol 100%, 20°C .  
Ethylne glycol / Diethylene glycol 40%, 70°C . . . .
Fixer 25°C   .
Formic avid 5%, 20°C .
Fruit juice 50°C   .
Glycerine 50%, 50°C .  
Heating oil (Light)   .   .
Hydraulic oil 10%, 20°C .  
Isopropanol   .  
Lactic acid 10%, 20°C   .
Linoleic acid 100%, 20°C .  
Linseed 60°C .  
Liqueur 60°C   .
Maize oil 80°C .  
Maleic acid 50%. 50°C   .
Methanol 100%, 20°C .  
Motor oil 100%, 80°C .  
Oil-water-mixture 100°C .  
Oxallic acid 1%, 20°C .
Peanut oil 100%, 80°C .  
Phosphoric acid 20%, 20°C .
Polyglycols 90°C .   .
Polyethylene glycols 40%, 70°C .  
Potassium carbonate 10%, 60°C .  
Potassium hydrogen carbonate 10%, 60°C .  
Potassium permanganate 5%, 20°C .
Potassium sulphate Unsaturated solution, 80°C .
Rapessed oil 100%, 80°C .  
Solicon oil 100% .  
Sodium carbonate 10%, 60°C .
Sodium hydroxide 25%, 50°C .
Sodium nitrate Unsaturated solution, 80°C .
Sodium phosphate 5%, 100°C .
Sodium sulphate 10%, 60°C .
Sulphuric acid 5%, 25°C   .
Water
Swimming pool water 35°C . .  
Delonic 50°C .  
Distilled Water 50°C .  
Decarbonized water   .  
Soft Water   .  
Heating Water   .  
Boiler Water   .  
Pure Water   .  
Rinsing Water   . .  

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