Pompe Casali · gear pump manufacturer in Bologna, Italy, since 1955
Viscous Fluid Pumpsby Pompe Casali

Marine · boilers · fuel depots

Fuel oil and diesel pumps

Diesel and kerosene are thin. Heavy fuel oil is thick and gets thicker in the cold. Pompe Casali self-priming gear pumps cover the whole family, from transfer between tanks to fine metering. They are built in Bologna, Italy.

Fuel oil and diesel pumps – Pompe Casali

Fuel transfer with the NAV series

The flanged NAV series lists fuel oils, petrol and diesel among its fluids and is indicated for the petrochemical sector. With flow rates from 54 to 2770 l/min it unloads road tankers, moves fuel between storage and day tanks and loads bunkers.

Being a positive displacement pump, it keeps its flow rate when you switch from light diesel to a denser fuel oil. Only the speed changes: thicker fuel, lower speed.

Metering and boiler feed with the ZV series

The ZV series was born from our experience in metering fuels and lubricants on Formula 1 engine test benches. It covers small flow rates, from 0.47 to 102 l/min, and lists diesel, kerosene, fuel oils and fuels in general.

Flow is proportional to speed. By regulating the motor you regulate the quantity of fuel delivered to a burner, a test bench or an additive line.

Marine fuel pumps and heavy fuel oil

The marine sector uses our pumps for fuels, oils and foam concentrate. On board, self-priming matters: the pump is often above the tank and must pick up the fuel unaided.

Heavy fuel oil has to be warm to flow. Our pumps are available with a heating chamber on the body, and the technical office defines the execution according to the grade of oil. Plants that heat fuel with a hot oil loop can also look at our thermal oil pumps.

Flammable fuels, safety and supply options

Petrol, kerosene and diesel call for attention to the installation area. ATEX documentation is available on request.

We supply the bare shaft pump, foot or flange mounted, or the complete electric pump unit on a baseplate. Send the fuel, the flow rate and the temperature to our technical office in Bologna and we will size the pump with you.

Recommended series

Which pump for: Fuels

NAV series: models, displacements and flow rates
NAV series: models, displacements and flow rates
Modelcm³/rev450 rpm950 rpm1450 rpm
1 NAV12054114174
1 1/2 NAV17478.3165252
2 NAV-a270121256391
2 NAV-b375169356544
2 1/2 NAV503226478729
3 NAV7543397161093
3 1/2 NAV10054529551457
4 NAV150567714302182
5 NAV191085918142770
ZV series: models, displacements and flow rates
ZV series: models, displacements and flow rates
Modelcm³/rev450 rpm950 rpm1450 rpm
1 ZV1.050.4711.52
2 ZV2.10.9423.04
4 ZV4.151.873.946.02
8 ZV8.33.737.912.04
12 ZV12.15.4411.517.5
16 ZV16.47.0214.822.6
20 ZV20.48.7318.428.1
32 ZV32.314.530.746.8
50 ZV50.422.747.973.1
70 ZV70.731.867.2102

Theoretical flow rates in l/min.

Supply options

Bare shaft or complete unit

Bare shaft – Pompe Casali 12 ZV
Bare shaftFoot mounted (B3) or flange mounted (B14), ready to couple to your own drive.
Electric pump unit – Pompe Casali 12 ZV
Electric pump unitPump, guarded coupling and electric motor aligned on a baseplate.
Geared motor unit – Pompe Casali 12 ZV
Geared motor unitLow speed for the thickest fluids: creams, molasses, chocolate, bitumen.

Frequently asked questions

Which pump do I need to transfer diesel or fuel oil?

A self-priming gear pump. We recommend the NAV series for transfer and the ZV series for small flow rates and metering.

Can the same pump handle diesel and heavy fuel oil?

The pump type is the same, but speed and execution change with viscosity and temperature. Tell us both fuels and we will check a single model with the technical office.

Do you supply pumps for hazardous areas?

ATEX documentation is available on request. Tell us the classification of your area when you ask for the quote.

Are your pumps used on ships?

Yes. The marine sector is one of our declared applications, for fuels, oils and foam concentrates.

Technical office

Talk to the people who build them

Fluid, flow rate, temperature: three figures are enough for a first indication of the model. We reply in English.

On WhatsApp you can also send a photo of the nameplate or a diagram of your system.
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