Find the pump series for your duty point

Set the flow you need and the head it must reach. The chart shows which series cover it and estimates the power it takes.

Every pump

runs on our test loop before it ships

Five shops, one works

// Your duty point //

Flow and head

Flow

50 m³/h

Head

50 m

VX end-suction covers it

10.2 kW

Range chart of flow against head for the six series, with the example duty point 50 m³/h at 50 m

Example duty point of 50 m³/h at 50 m. Water at 20 °C; shaft power estimated with a typical efficiency for the flow. The selection fixes the real figure.

Next step

Send it to an engineer

A first selection needs only flow, head and the liquid. We reply with a series, size, curve and price.

NPSH available, if you know it

Materials or site standards you must meet

Supply voltage and frequency

See worked examples

Got a duty point?

Let’s size your next pump.

Send flow, head and the liquid. An engineer replies with a selection, a curve and a price.

Send Your Duty

Try The Selector

Stay connected

Pump notes, new series and test-loop open days, a few times a year.

Main links

Home About Products Services Worked examples Pump notes Contact

Pump tools

Pump selector Inside the pump Industries Spare kits Data sheet

Contact info

Foundry Lane, Unit 7 (sample address)

sales@voluta.example

service@voluta.example

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.