O-ring 8,3x11,3x0,8mm

The 8.3×11.3×0.8 aluminum ring is a metal sealing washer used in connections where long-lasting sealing and stable operation in demanding conditions matter. This type of seal is used when servicing accessories and assemblies of pressure washers, especially where the joint works at elevated temperature or under high clamping load.

MPN / reference: 13275
Size: 8.3×11.3×0.8

APPLICATION

Typical service uses include:

• sealing threaded joints and seats that require a metal seal,
• fixing leaks around couplings, connectors and stubs,
• periodic inspections of machines used intensively (workshop/service/industrial use),
• servicing units in the Quadro/Profi/Therm/LX/Bully area (after confirming compatibility by number and size).

SYMPTOMS – WHEN TO REPLACE

Replace the metal seal when you notice:

• leakage at the joint despite correct tightening,
• deformation after disassembly (flattening, “crushing”),
• leakage after reassembling the joint using the same seal,
• micro-leaks that appear only after heating or under load,
• damage marks on the sealing face (pitting, scratches) visible on the ring.

HOW TO CHOOSE THE RIGHT PART

Selection should be unambiguous because metal seals work on specific mating surfaces:

• verify the size 8.3×11.3×0.8,
• confirm the manufacturer number: MPN 13275,
• compare with the removed seal and check the seat type (mating surfaces).

Accurate fit is critical-different thickness or diameter may prevent proper clamping and cause leakage.

COMPATIBILITY

Choose the aluminum ring based on MPN 13275 and 8.3×11.3×0.8 size, according to the parts list for the specific joint/assembly. The listed series (Quadro, Profi, Therm, LX, Bully) should be treated as an application area that still requires verification by number and connector specification.

[faq]

How is an aluminum sealing ring different from a classic rubber O-ring?|It’s a metal seal that seals by compression against mating surfaces. It usually tolerates temperature and high clamping loads better than elastomers, but it requires proper sealing faces.

Can a metal seal be reused after disassembly?|Usually not recommended. After being crushed/compressed, it can deform permanently, and reusing it increases the risk of micro-leaks.

Why can a joint leak even with a new aluminum seal?|Common causes are damaged/dirty sealing faces, non-axial tightening, or incorrect thickness/diameter. Inspect the seat and the condition of the mating edges.

Is this seal “temperature resistant” in every use case?|Aluminum generally handles elevated temperature better than many elastomers, but durability also depends on joint conditions (clamping force, sealing faces, vibration). Always confirm in the connector/joint documentation.

How do I confirm that 8.3×11.3×0.8 is the correct size?|Safest by MPN 13275 and comparing to the removed seal. For metal seals, the 0.8 mm thickness is especially important because it affects clamping and sealing load.

[/faq]