Kripsol – Koral / Mini Kapri szivattyúház – 500100100003

Kripsol Koral / Mini Kapri pump housing

This is the injected thermoplastic hydraulic body — the main volute casing — that forms the wet end of Kripsol Koral KS/KSE and Mini Kapri series pool pumps. It houses the impeller, directs water flow through the hydraulic circuit, and provides the structural connection between the prefilter head and the motor lantern. When the casing cracks, warps, or develops a weeping joint, water volume and prime are lost immediately.

What this pump housing does in the Koral

The pump housing encloses the impeller in a sealed volute and converts impeller rotation into pressurised flow directed toward the filter. It also carries the inlet and outlet port flanges — including the slip-union connections for 50 mm or 63 mm pipework — and must maintain a pressure-tight seal against both the prefilter body and the motor bracket. Any deformation or hairline fracture in the casing causes immediate pressure loss and cavitation.

Melyik Koral modellekhez illeszkedik?

This housing is confirmed to fit the Koral KS and KSE pump series — covering the full power range from KS/KSE 33 through to KSE 300 — and the Mini Kapri (KAP) series as noted in the source data. Always cross-reference your pump’s model plate before ordering, as the Ondina OK and Ninfa NK families use different housings.

Jelek, amelyek arra utalnak, hogy cserére szorul

Look for hairline cracks running from the port flanges toward the volute centre — these are the first stress fracture points on aged casings. A housing that leaks at the base joint with the prefilter, even after the O-ring has been replaced, is distorted and will not seal regardless of torque applied to the lid studs. Discolouration, blistering, or surface chalking indicates UV degradation or chemical attack; a compromised casing cannot sustain working pressure.

Hogyan kell telepíteni?

Isolate and drain the pump circuit before disassembly. Remove the motor from the existing casing by undoing the lantern bracket bolts, then withdraw the impeller and mechanical seal as an assembly. Transfer the seal, impeller, and diffuser to the new housing, refit the motor, and torque the union nuts to hand-tight plus a quarter turn — no tools on the plastic unions. Refit pipe connections, prime the pump, and check for weeps at the volute joint before returning to service. Allow a full duty cycle before declaring the repair complete.

Miért fontos az eredeti Kripsol?

The volute geometry is engineered to match the Koral impeller’s specific blade angle and tip clearance. An off-spec housing — even one that appears dimensionally similar — changes the flow path, raises turbulence losses, and can load the mechanical seal unevenly, shortening its service life. Genuine Kripsol housings are moulded from UV-stabilised, chemical-resistant thermoplastic calibrated to the same tooling as the rest of the hydraulic assembly.