Aluminium central case with intermediate stages making up the diffusers and return channels, everything assembled by means of tie rods.
Aluminium suction and pressure heads with labyrinth seals on shaft.
Rotor consisting of aluminium airfoil impellers. The impellers coupled to the special steel shaft are statically and dynamically balanced.
The centrifugal impellers are mounted and coupled to the special steel shaft.
The bearings (ball and roller) are housed in cast iron supports with ring seals; lubrication automatically removes the excess grease.
Transmission by means of belts and pulleys. Belt stretcher on motor base.
Safety casing in steel wire mesh in accordance with the accident-prevention regulations on motor base.
On request they can be manufactured in ATEX version up to zone 1 /21.

FLUID:

Clean or slightly dusty air.
Biogas and gas