This is the genuine Kripsol drip ring \u2014 also called a slinger ring or larmier \u2014 for the Ninfa pump wet end (PPE). Fitted on the motor shaft immediately behind the mechanical seal, it spins with the shaft and centrifugally deflects any water that weeps past the seal, preventing it from tracking along the shaft and reaching the motor bearings. The pack contains 10 rings, making it a practical stock item for workshop use or multi-pump installations.<\/p>\n
The Ninfa’s mechanical seal is not a perfectly dry barrier \u2014 small volumes of water weep through it by design to lubricate the sealing faces. The drip ring sits on the \u00d815mm shaft just inboard of the seal and uses centrifugal force to fling that weeping water radially outward and away, preventing it from migrating along the shaft into the front motor bearing. Without a serviceable drip ring, persistent seal weepage accelerates bearing corrosion and ultimately motor failure.<\/p>\n
This drip ring is specified for the Kripsol Ninfa NK pump family \u2014 including the NK 25M, NK 33M, and NK 51M single-phase models \u2014 wherever the wet-end shaft diameter is \u00d815mm. It belongs to the broader Kripsol Koral \/ Mini Kapri pump family product group; confirm your shaft diameter before ordering if you are fitting it to a related model outside the Ninfa range.<\/p>\n
You’ll notice a slow drip of water from the underside of the pump, directly below the point where the motor meets the wet end, even after fitting a new mechanical seal. Inspect the drip ring when you remove the impeller: look for cracking, deformation, or a loose fit on the shaft. A drip ring that has lost its shape no longer seats flush and fails to deflect weepage effectively, allowing water to travel inward toward the bearing.<\/p>\n
With the pump isolated from the supply, remove the pre-filter cover, unscrew and withdraw the impeller, and slide the worn drip ring off the \u00d815mm shaft. Press the replacement ring firmly onto the shaft until it seats against its locating shoulder \u2014 no tools required beyond those already needed for the impeller removal. Reassemble in reverse order, refit the mechanical seal if it is also being replaced, and run the pump briefly to confirm the weepage has stopped before closing up the plant room.<\/p>","protected":false},"excerpt":{"rendered":"