The spacer (inner spacer ring) for the ESPA Niper and NOX 25 pumps is a precise plastic component ensuring the correct axial position of the impeller inside the pump body.
The correct axial distance of the impeller from the diffuser is a prerequisite for maximum hydraulic efficiency and for preventing mechanical contact between the rotating and stationary parts.
A worn or damaged spacer causes vibration, rustling noise or direct mechanical contact between the impeller and the diffuser, which quickly damages both components.
Replacement is carried out when dismantling the hydraulic section of the pump and requires no special fixtures or calibration.
The shared part for the Niper and NOX 25 models simplifies spare-parts management for service technicians working with both ESPA pump ranges.
Recenze
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