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SELECTION GUIDE · PUMPS

How to choose the right pump?

The wrong pump can ruin an entire batch — an overly aggressive flow froths your wine, while an underpowered motor stalls on thick honey. This guide covers our complete pump range: impeller, screw, lobe and centrifugal pumps, air-operated pumps for alcohol and powders, and ATEX explosion-proof solutions. Choose in three steps: flow rate, pump type and connections.

ET · EN · FI · DE · SV · LV · LT

Step 1

Choose the flow rate by batch size

Rule of thumb: divide your batch volume by the time you can reasonably spend pumping, then pick one size up — volumes grow faster than you think.

Up to 3,000 l/h

Home and small producers: filling fermenters, pre-bottling transfers.

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3,000–10,000 l/h

Small-scale commercial production: press → tank → filter lines.

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Over 10,000 l/h

Industrial volumes and long pipe runs.

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Step 2

Choose the pump type by task

Viscosity — the thickness of a liquid — is the first key figure (water is ~1 cP), but the task matters just as much: are you moving delicate wine, chunky preserves, hot cleaning solution or flammable spirits? Each type is a master of its own field.

Impeller pumps

The universal first choice for beverages. Self-priming (4–6 m), handles up to 50,000 cP — from juice and wine to honey and tomato paste. Bypass-valve models pump gently with minimal frothing. Liverani EP withstands up to +95 °C, Rover Novax +95 °C.

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Screw and gear pumps

Rotary positive-displacement pumps: pulsation-free steady flow prevents emulsification and oxidation. A screw pump is best for viscous and pulpy masses (up to 100,000 cP) — even whole fruit passes through undamaged. A gear pump (e.g. Rover Novax G) suits oil and other smooth viscous liquids.

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Lobe pumps

The gentlest choice for thick products: honey, creams and chunky products keep their structure. EPDM-coated rotors, electronic speed regulator 0–450 rpm.

Vaata pumpasid →

Centrifugal pumps

The workhorse for large volumes of low-viscosity liquids (wine, juice, water). Up to 30,000 l/h; sanitary AISI 316 with quick-release clamps — easy to open and clean; precise regulation with a bypass valve.

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Air-operated & diaphragm pumps

Compressed-air drive is spark-free and versatile: pumps both liquids and powders, and suits flammable liquids such as alcohol. Head up to 70 m; on beer lines it delivers from keg to tap up to 10 floors.

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ATEX explosion-proof

Certified for explosive atmospheres: spirits, strong alcoholic beverages, flammable vapours. The range includes air-operated (Phoenix Atex P18), screw (P30 TF ATEX, LUTZ MD1) and light-duty pumps (Kegland, tested up to 10% ethanol).

Vaata pumpasid →
We offer the full range from Liverani, Rover, Fluimac and other manufacturers — if you need a liquid-ring or piston pump, write to [email protected] and we will find a solution.

Quick comparison

TypeKey traitTypical use
Impellerup to 50,000 cP · self-priming 4–6 mwine, juice, beer, cider, syrup
Screw/gearup to 100,000 cP · pulsation-freepurées, pulpy juice, oil, honey
Lobegentlest · 0–450 rpmhoney, creams, chunky products
Centrifugalup to 30,000 l/h · low viscositywine, juice, water, cleaning solutions
Air-operatedliquids + powders · spark-freealcohol, wort, powders
ATEXcertified for Ex atmospheresspirits, strong beverages

Gentle handling

Oxygen contact and frothing promote oxidation of wine and juice. Bypass-valve impeller pumps, pulsation-free screw pumps and slow-turning lobe pumps deliver your product to the tank without quality loss.

Temperature

For hot liquids (pasteurised juice, cleaning solutions) choose the right series — Liverani EP withstands up to +95 °C, the P30 A.T. screw pump is built for high temperatures, Rover Novax up to +95 °C.

Step 3

Connections: fittings and hoses

A pump is only as good as its connections. Check your pipework standard and choose fittings of the same system — all types are in stock and directly available.

DIN hose fittings115 products →Tri-clamp (DIN 32676)32 products + gaskets →SMS threaded couplings22 products →BSPT threaded fittings46 products →Garolla (Italian standard)fittings + valves →Camlock quick couplingsquick connections →IBC container fittingsfor containers →Metal fittingsadapters →

Hoses and accessories

Hoses and insulation90 products — food-grade hoses →Hose clamps75 products — secure fastening →Pump accessoriesimpellers, seals, spare parts →

Frequently asked questions

What is the difference between an impeller pump and a liquid-ring pump?

An impeller pump handles liquids up to 50,000 cP, a liquid-ring pump only up to 120 cP — for thick liquids (honey, syrup, purée) choose an impeller pump or an even more capable screw pump.

Which pump should I use for alcohol and strong beverages?

For flammable liquids choose an air-operated pump (spark-free drive, e.g. Phoenix P30) or an ATEX-certified model (Phoenix Atex P18, P30 TF ATEX). For lighter jobs the Kegland siphon pump is tested up to 10% ethanol.

Which pump suits honey, purées and chunky products?

A screw pump (up to 100,000 cP, pulsation-free — handles pulpy masses and even whole fruit) or a lobe pump (gentlest, 0–450 rpm — honey and creams keep their structure).

Are impeller pumps self-priming?

Yes, all our impeller pumps are self-priming and draw liquid from up to 4–6 m. Air-operated pumps draw up to 9.8 m (liquids) and 5 m (powders).

How hot can the pumped liquid be?

The Liverani EP series withstands up to +95 °C, the P30 A.T. screw pump is built for high temperatures, the Rover Novax up to +95 °C — choose the series to match your process.

Are spare parts and fittings available?

Yes — impellers, seals and fittings (DIN, Tri-clamp, SMS, BSPT, Garolla, Camlock) are stocked as spare parts, for every pipework standard.

Ready to choose?

Not sure? Ask us: [email protected]

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