Repair Kit - Kränzle Pump Valves

The Kränzle APG pump valve repair kit + O-rings is a set of service parts intended for refurbishing the valve section of a high-pressure pump. Replacing valves and sealing O-rings is a typical repair step when the pump loses efficiency, pulsation appears, or pressure stability becomes difficult to maintain.

MPN / reference: 41.748
Weight: 0.72 kg
Dimensions / size (packaging): 10×1×10

APPLICATION

Used in Kränzle pump service work, especially for:

• replacing suction/discharge valves in the pump (valve section refurbishment),
• fixing issues related to pressure rollback, reduced output, or unstable operation,
• repairs after operation with contaminated water (deposits affect valve seats and sealing),
• periodic pump inspections when valve checks indicate wear of working components.

SYMPTOMS - WHEN IT’S WORTH REPLACING

Typical symptoms of worn valves or O-rings in the valve section:

• drop in working pressure and reduced pump performance,
• jet pulsation / pressure fluctuations during operation,
• difficulty maintaining stable parameters under load,
• pressure rollback or unstable behavior after releasing the trigger,
• signs of leakage within the pump (after ruling out the working accessories).

HOW TO CHOOSE THE RIGHT PART

For valves, correct fit to the pump design and valve seats is critical:

• by manufacturer MPN / reference: 41.748,
• by application designation: Kränzle APG pump,
• by comparison with removed parts: verify valve type, dimensions, and the condition of valve seats.

Accurate fit matters for tightness and valve-section performance — even small differences can cause leakage and loss of output.

COMPATIBILITY

Kit described as intended for Kränzle APG pumps.
For safe selection, confirm compatibility by MPN 41.748 and the pump documentation/parts list (table/specification). Selecting only by a general description without reference verification is not recommended.

[faq]

Will replacing valves solve pulsation and pressure drop?|Often yes, if leaking or worn valves are the cause. Similar symptoms can also be caused by the nozzle, water filter, unloader/regulating valve, or air ingress — basic diagnostics before opening the pump is recommended.
How do I confirm kit 41.748 fits my pump?|The safest method is verifying MPN 41.748 in the parts list for the APG pump. You can also compare the removed valves (type, dimensions, seating method).
Can I use aftermarket valves or O-rings?|Only if dimensions and intended use match exactly. For valves, tolerances and sealing on the seats are critical; for O-rings, dimensional compatibility is key. The safest reference point remains the MPN and pump specification.

[/faq]