Side Channel 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 suction casing and the diffuser, it rotates in conjunction with the pump shaft. Due to this arrangement, the rotation of the impeller and the position of the side channel, negative pressure is created inside the suction casing, 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 discharge casing.

Design and features

Aspir is a range of centrifugal pumps made of a cold-formed stainless steel discharge casing, cast sainless steel suction casing, diffuser and lantern, star-shaped fixed impeller, and an external mechanical seal that prevents any contact of the spring with the product.
The motor complies with the IEC standards, it is protected with a stainless steel shroud made of stainless steel sheet and provided with the height adjustable hygienically designed legs.


Heavy-duty impeller.
Pump casing with drain port.
Different types of connections.
SiC/SiC mechanical seal.
Gaskets: FPM and PTFE.
Motor with other voltages and frequencies.
Motor for explosive atmospheres or with enhanced safety level.
ATEX certification.
Internal flow by-pass.


Parts in contact with the product Stainless steel AISI 316L (1.4404)
Other steel parts Stainless steel AISI 304 (1.4301)
Gaskets in contact with the product EPDM

Mechanical seal
Rotary part Silicon carbide (SiC)
Stationary part Carbon (C)
Gaskets EPDM

Surface finish
External Matt
Internal Bright polish except for electropolished impeller


ASPIR self priming pump INOXPA
ASPIR self priming pump INOXPA
ASPIR-self-priming-pump-without shroud
ASPIR-self-priming-pump-without shroud