Self-priming Pump ASPIR


The Aspir pump is a sanitary, side-channel, self-priming pump suitable for use in the food-processing, pharmaceutical and chemical industries. It is specially designed for pumping materials containing air or gas, and it can also be used for negative suction with prior priming as well as with filtration equipment. It can be used with wine, oil, syrups, volatile products such as alcohol, acetone and other solvents, or with products at temperatures close to boiling point. However, the main use of this pump is for CIP return.

Operating principle

The impeller is housed between the inlet body and the venturi casing and it rotates in conjunction with the pump shaft.This arrangement, together with the rotation of the impeller and the arrangement of the side channel, creates a negative pressure inside the inlet body, which generates the suction force of the pump. At the same time, the fluid receives energy in the form of kinetic energy and pressure energy, and this impels it through the impeller casing.



Design and features

Cold-formed pump casing.
Stainless steel investment casting inletbody and venturi.
Investment casting star-shaped floating impeller.
External mechanical seal prevents contact between the springs and the pumped product.
Very robust stainless steel cast lantern.
Stainless steel support.


Parts in contact with pumped product AISI 316 Other parts AISI 304 Gaskets EPDM according to FDA 177.2600 Mechanical seal C/SiC/EPDM Surface finish Electropolished


Mechanical seal in SiC/SiC.
Gaskets in FPM and PTFE.
Drain port.
Connections: Clamp, SMS, RJT., etc.