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

Food · beverages · pharmaceutical

Syrup pumps

Syrups look easy until they cool down or dry out. Glucose syrup turns stiff in a cold store, and sugar syrup leaves crystals wherever it dries. Pompe Casali builds self-priming gear pumps in Bologna, Italy, for the transfer and dosing of food and pharmaceutical syrups.

Syrup pumps – Pompe Casali

Glucose, sugar syrups and pharmaceutical syrups

Glucose syrup is the heavy one. It is very viscous at room temperature and much more so when cold. Sugar and fruit syrups are thinner but sticky, and they crystallise on surfaces left to dry. Pharmaceutical syrups add the need for precise dosing and thorough cleaning.

A positive displacement gear pump suits all three, because each revolution moves the same volume whatever the viscosity.

FX series: stainless steel syrup pumps

For syrups the series we normally propose is the FX series. It is machined entirely from solid stainless steel for the food, cosmetic and pharmaceutical industries. It dismantles completely in a few minutes, so sugar deposits can be washed away, and it is prepared for C.I.P. washing. A heating jacket is available for glucose that must be kept warm. Six models reach a theoretical flow rate of 247.1 l/min.

ZV series: dosing syrups at small flow rates

For metering we normally propose the ZV series, with theoretical flow rates from 0.47 to 102 l/min, threaded ports and direct flange mounting on the motor. Flow is proportional to speed, so the dose is set from the drive. Syrups are among the products our pumps handle in the pharmaceutical sector. In every case the model has to be confirmed by our technical office.

Sizing a syrup pump

Tell us the type of syrup, its concentration if you know it, the lowest temperature in the line and the flow rate. Our technical office in Bologna sets the model and the speed and advises on a geared motor for thick glucose. You can write to us on WhatsApp or send the quote form.

Products with similar behaviour are honey and molasses. For other ingredients see pumps for the food industry.

Recommended series

Which pump for: Syrups

FX series: models, displacements and flow rates
FX series: models, displacements and flow rates
Modelcm³/rev950 rpm1450 rpm
FX 2020.519.429.7
FX 3030.829.244.6
FX 5050.347.872.9
FX 7070.667102
FX 120120.8114.8175.3
FX 170170.5161.9247.1
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

What pump is used for glucose syrup?

A positive displacement gear pump run at low speed, often with a geared motor. We normally propose the FX series, with a heating jacket where the glucose must stay warm.

Can I dose syrup with a gear pump?

Yes. The pump delivers a fixed volume per revolution, so regulating the speed regulates the dose. For small quantities we normally propose the ZV series.

How do I stop sugar crystals from blocking the pump?

Wash the pump before the syrup dries. The FX series dismantles completely in a few minutes and is prepared for C.I.P. washing.

Do you supply the pump with motor and baseplate?

Yes. The pump is available bare shaft, as a motor pump unit on a baseplate, or with a geared motor for low speeds.

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.
WhatsAppRequest a quote