Kripsol – K-FLO-Pumpenlaufrad/Turbine 1,50 HP – 500100070009

Kripsol K-FLO pump impeller / turbine 1.50 HP

This is the genuine OEM impeller — also referred to as a turbine — for the 1.50 HP variant of the Kripsol K-FLO pool pump, the hydraulic heart that converts motor torque into water flow. Seated inside the pump volute, it draws water through the pre-filter and forces it into the filtration circuit; when it degrades, the entire system’s flow rate collapses. The K-FLO shares its hydraulic architecture with the wider Koral / Mini Kapri pump family, making this a high-demand wear item across a large installed base.

Welche Funktion dieses Laufrad in der K-FLO-Pumpe hat

The impeller spins at 2,850 RPM, accelerating water centrifugally from the suction port to the discharge outlet. At 1.50 HP, the pump targets mid-range residential and light-commercial installations — enough hydraulic force to serve pools up to approximately 100 m³ through standard sand or glass-media filtration. A damaged or worn impeller causes immediate, measurable loss of flow rate, increased motor temperature, and audible cavitation noise.

Which K-FLO and Koral models it fits

This impeller is sized and keyed for the 1.50 HP K-FLO single-speed pump, which sits within the broader Kripsol Koral / Mini Kapri pump family. The K-FLO shares its volute and shaft dimensions with the Koral KSE series, and the 1.50 HP rating corresponds to the Ø 50 mm union connection on that platform. Verify your pump’s HP rating and union size on the motor nameplate before ordering — the 0.75 HP, 2.00 HP, and 3.00 HP variants each use a different impeller geometry.

Anzeichen dafür, dass es ausgetauscht werden muss

You’ll notice a drop in return-jet pressure at the pool inlets even after cleaning the pre-filter basket and backwashing the filter. The pump may also run louder than normal — a hollow, rattling cavitation sound points to an impeller that is cracked, chipped, or blocked with debris that cannot be cleared by inspection alone. Sustained low flow at rated RPM, combined with a motor that runs hotter than usual, confirms impeller wear rather than a pipework issue.

So installieren Sie es

Switch off and isolate power at the distribution board, then close all isolating valves. Remove the four pump-body bolts, separate the volute from the motor bracket, and unscrew the impeller clockwise — the thread is left-hand on most Koral-family pumps, so turn clockwise to loosen. Seat the new impeller firmly against the shaft shoulder, reassemble the volute with a fresh O-ring (inspect the existing one; replace if flattened), and re-prime before starting. The full swap takes around 20–30 minutes with basic hand tools.

Warum echtes Kripsol wichtig ist

The K-FLO / Koral impeller is a commonly copied component. Aftermarket alternatives are typically moulded in standard polypropylene rather than glass-fibre-reinforced Noryl®, which distorts under continuous load and accelerates shaft-seal wear. The genuine Kripsol part is moulded in corrosion-resistant Noryl® with a stainless-steel insert, maintaining dimensional stability in both chlorinated and salt-chlorinated water.