/Products
Products
Six pump series, one standard of test
End-suction, split-case, multistage, inline, fire and process pumps. Pick a series for its full specification.
Six series
Rendered from our own 3D models
The six series
VX end-suction
General-purpose pump for clean and slightly contaminated water.
Flow
2 – 400 m³/h
Head
5 – 100 m
Casing
EN-GJL-250 grey iron
VS split-case
Large flows with the rotor accessible from above.
Flow
2 – 400 m³/h
Head
5 – 100 m
Casing
EN-GJL-250 grey iron
VM multistage
High head on a very small footprint.
Flow
2 – 400 m³/h
Head
5 – 100 m
Casing
EN-GJL-250 grey iron
VI inline
Flanges in line, motor on top, for crowded plant rooms.
Flow
2 – 400 m³/h
Head
5 – 100 m
Casing
EN-GJL-250 grey iron
VF fire package
Pump, driver and controller tested together as one set.
Flow
2 – 400 m³/h
Head
5 – 100 m
Casing
EN-GJL-250 grey iron
VP process
Stainless and duplex castings for aggressive liquids.
Flow
2 – 400 m³/h
Head
5 – 100 m
Casing
EN-GJL-250 grey iron
Overview
The range side by side
Figures are the envelope of each series. Your selection fixes the exact size, impeller diameter and motor.
Series
Flow
Head
Pressure
Temperature
First choice for
30 – 1,500 m³/h
40 – 150 m
Per pump
0 to +40 °C
Sprinkler and hydrant systems for warehouses
End-suction · EN 733
VX end-suction
A back-pull-out end-suction pump to EN 733 dimensions. The casing stays on the pipework while the rotating unit comes out for service.
VX end-suction specification
Flow
2 – 400 m³/h
Head
5 – 100 m
Pressure
PN16
Liquid temperature
−10 to +120 °C
Speed
1,450 or 2,900 min⁻¹ at 50 Hz
Casing
EN-GJL-250 grey iron · ductile iron · stainless 1.4408
Impeller
Bronze CuSn10 · grey iron · stainless 1.4408
Shaft seal
Single mechanical seal, EN 12756
Sizes
32-125 to 150-125-400, EN 733 designations
Typical uses: Water transfer, HVAC circuits, irrigation, washing plant, cooling water.
Axially split · double suction
VS split-case
An axially split, double-suction pump for large flows. Water enters both sides of the impeller, so axial thrust balances itself, and the top half lifts off without disturbing pipework or motor.
VS split-case specification
Flow
100 – 3,000 m³/h
Head
10 – 150 m
Pressure
PN16 · PN25
Liquid temperature
0 to +80 °C
Speed
980, 1,450 or 2,900 min⁻¹
Casing
EN-GJS-400 ductile iron
Impeller
Bronze, double suction
Bearings
Grease-lubricated, both ends
Shaft seal
Packing or mechanical seal
Typical uses: Water mains, raw-water intake, district cooling, large irrigation schemes.
Vertical multistage
VM multistage
A vertical multistage pump: stacked stainless stages add head one after another, with suction and discharge in line at the base.
VM multistage specification
Flow
1 – 120 m³/h
Head
20 – 300 m
Pressure
PN25 · PN40
Liquid temperature
−20 to +120 °C
Speed
2,900 min⁻¹
Stages
Stainless 1.4301 or 1.4404
Shaft seal
Cartridge seal, changed without lifting the motor
Connections
In-line flanges or Victaulic
Typical uses: Boiler feed, pressure boosting, reverse osmosis, washdown.
Inline · vertical motor
VI inline
An inline pump with suction and discharge on one axis, made for plant rooms where floor space is short and pipe runs are straight.
VI inline specification
Flow
2 – 600 m³/h
Head
4 – 90 m
Pressure
PN16
Liquid temperature
−10 to +120 °C
Speed
1,450 or 2,900 min⁻¹
Casing
EN-GJL-250 grey iron
Impeller
Grey iron or bronze
Shaft seal
Single mechanical seal
Typical uses: Heating and chilled-water circuits, condenser water, general circulation.
Packaged fire-pump set
VF fire package
A fire-pump set built around a VS or VX pump, with electric or diesel drive, jockey pump and controller on one baseplate.
VF fire package specification
Flow
30 – 1,500 m³/h
Head
40 – 150 m
Drivers
Electric motor or diesel engine
Controller
Mounted, wired and tested with the set
Pump
VS split-case or VX end-suction
Test
Full-curve test of the complete set
Typical uses: Sprinkler and hydrant systems for warehouses, plants and buildings.
Process · ISO 2858
VP process
A heavy-duty process pump to ISO 2858 dimensions, with a large seal chamber for cartridge seals and seal-support systems.
VP process specification
Flow
1 – 1,500 m³/h
Head
5 – 220 m
Pressure
PN25
Liquid temperature
−40 to +200 °C
Casing
Stainless 1.4408 · duplex 1.4470
Impeller
Closed or open, same alloys
Shaft seal
Cartridge seals, with support systems on request
Dimensions
ISO 2858
Typical uses: Chemicals, solvents, hot water, food-grade transfer.
Ready to size your
next pump?
Send Your Duty
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Send flow, head and the liquid. An engineer replies with a selection, a curve and a price.
Stay connected
Pump notes, new series and test-loop open days, a few times a year.
Contact info
Working hours
Mon to Fri: 08:00 – 17:00
Test loop visits by appointment
Sat and Sun: closed
© 2026 VOLUTA, a concept site: product data, addresses, figures and worked examples are samples to confirm before use. Photos: Unsplash (Unsplash License) and Wikimedia Commons: “In-stream inoculation addition while molten cast iron is poured to a green sand mold in a foundry in Bangladesh” by Sm faysal, CC BY-SA 4.0; “Foundry practice; a treatise on molding and casting in their various details (1909) (14782674264)” by Internet Archive Book Images, no known copyright restrictions; “Engine house for pump at Westonzoyland Pumping Station - geograph.org.uk - 7258658” by David Smith, CC BY-SA 2.0; “Blue Grass Chemical Agent-Destruction Pilot Plant Utility Building (12816184725)” by PEO ACWA, CC BY 2.0; “Fire Pump Room, Brisbane, 2021” by Kgbo, CC BY-SA 4.0; “Motorised Pump Irrigation - geograph.org.uk - 4609184” by Rude Health, CC BY-SA 2.0; “Ullrich Water Treatment Plant Intake Lake Austin 2020” by Larry D. Moore, CC BY 4.0; “Duisburg, Landschaftspark Duisburg-Nord -- 2020 -- 7824-6” by the author named on the Commons file page, CC BY-SA 4.0; “Duisburg, Landschaftspark Duisburg-Nord -- 2020 -- 7803-5” by the author named on the Commons file page, CC BY-SA 4.0; “Waste Water Treatment Plant” by Dmitry Makeev, CC BY-SA 4.0; “Hala główna Galerii Elektrownia w Czeladzi z ekspozycją maszyn i urządzeń pokopalnianych” by Krzysztof Popławski, CC BY-SA 4.0. Films: Mixkit (Mixkit Free License). Pump drawings rendered from the site's own 3D model.
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