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

With heating jacket

CR series pumps with heating jacket

The CR series is the gear pump for fluids that solidify or become too thick at room temperature. The heating jacket completely surrounds the pumping chamber and keeps the product at temperature.

32.3 – 2960cm³/rev
14.5 – 4292l/min
10models
CR series pumps with heating jacket – Pompe Casali

CR series: models, displacements and flow rates

CR series: models, displacements and flow rates
Modelcm³/rev450 rpm950 rpm1450 rpm
3/4 CR-a32.314.530.746.8
3/4 CR-b50.422.747.973.1
3/4 CR-c70.731.867.2102
1 CR12757.1121184
1 1/2 CR297134282431
2 CR503226478729
2 1/2 CR7543397161093
3 CR10054529551457
4 CR191085918142770
6 CR2960133228124292

Theoretical flow rates in l/min.

How the heating jacket works

Around the pumping chamber there is a cavity in which the heating fluid circulates. The heat reaches the whole pump body. The gears are not locked by cold product, and the pump restarts after a stop without strain on the shaft.

Which products it is used for

Bitumen, pitch, compounds and bituminous mixtures, chocolate, waxes, hot-melt, resins and molasses. These are the typical applications in bitumen plants, chocolate lines, resin and hot-melt production and molasses storage.

Ten sizes, from 3/4" to 6"

The series covers displacements from 32.3 to 2960 cm³/rev. You choose the model according to the flow rate required and the speed the viscosity allows: the thicker the fluid, the lower the speed of rotation. Our technical office in Bologna, Italy, sizes the pump together with you.

Supply options for heated installations

The CR is supplied as a bare shaft pump, as an electric pump unit on a baseplate or with a geared motor for low speeds. Many plants feed the jacket from a hot oil loop: for that circuit see our thermal oil pumps.

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 is the difference between the CR and NAV series?

The CR has a heating jacket around the pumping chamber and the NAV does not. Choose the CR when the product must stay hot to flow.

Which fluid circulates in the jacket?

A hot fluid supplied by your plant. Tell us what is available on site and the technical office will confirm the connection.

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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