Sealing Sleeve 15mm

The soft 15 mm seal/cup seal (ring) with dimensions 15×24×5/2.5 is a sealing element used in Kränzle high-pressure washer pumps. In service practice it maintains tightness in the pump’s working section, supporting stable pressure and reducing leakage.

MPN / reference: 42.902
Dimensions / size: 15×24×5/2.5
Weight: 0.001 kg

APPLICATION

Part used in pump service work, including:

• replacing the seal in the piston / pump working section,
• pump refurbishment after prolonged operation or heavy-duty use,
• eliminating leaks around the pump head area,
• periodic high-pressure system inspections (replacing sealing parts as a complete set or step-by-step).

SYMPTOMS - WHEN IT’S WORTH REPLACING

Most common signs of seal/cup seal wear:

• water leaks around the pump or piston section,
• drop in working pressure despite functional accessories,
• jet pulsation and pressure fluctuations during operation,
• moisture on pump components after downtime (leak traces),
• reduced pump stability under load.

HOW TO CHOOSE THE RIGHT PART

To avoid leaks, always select based on technical data:

• by dimensions: 15×24×5/2.5 (inner diameter, outer diameter, and height/profile),
• by MPN / reference: 42.902,
• by comparison with the removed part: check working profile and dimensions before installation.

Accurate fit is crucial - profile differences (e.g., 5/2.5 vs 5/2.7) can cause leaks or rapid wear.

COMPATIBILITY

Seal described for use in Kränzle pumps and commonly indicated for units such as: X 10/140 TST, X 8/150 TST, X A15 TST, X A17 TST, K 2195 TS, K 2195 TST, Profi-Jet B 10/200, Quadro 9/170 TST.
For safe selection, confirm compatibility by MPN 42.902 and the 15×24×5/2.5 size in the pump documentation/parts table, or by comparing with the removed part.

[faq]

Does the 15×24×5/2.5 cup seal fit every “15 mm” pump?|No. “15 mm” is often shorthand referring to part of the working section, but fit is determined by the full dimensions and profile. The safest approach is selecting by MPN 42.902 and comparing with the removed part.

What’s the key difference between 5/2.5 and 5/2.7?|It’s a difference in the working height/profile. Even a small change can cause leakage or improper sealing performance. Select only according to the dimension specified in documentation or measured from the old part.

Can I use an aftermarket alternative for this seal?|Yes, but only if the alternative has identical dimensions and profile and is rated for high-pressure systems. If unsure, base the selection on the MPN and pump specification.

[/faq]