O-ring SCHAERER Spare Parts 3322753000

This O-ring forms a tight seal between two surfaces in fluid systems, preventing leaks in water, steam or cleaning solutions. It fits into a groove and compresses when parts are joined, maintaining pressure in coffee machine circuits. The material stays flexible across operating temperatures and resists chemicals it encounters during use.

To replace, remove the old ring, clean the groove, and press the new one into place by hand. A pick helps lift the worn ring, and a cloth wipes the seating area. Ensure the ring sits evenly without twisting or stretching before reassembling the joint.

Made from EPDM rubber with a Shore A hardness of 70, the ring adapts to minor imperfections in metal surfaces while resisting deformation. The black colour is standard for this material. Dimensions of 8.07 mm inside diameter and 1.78 mm cross-section match the original SCHAERER design for a secure fit.

The inside diameter of 8.07 mm suits the pipe or fitting it seals, while the 1.78 mm cross-section provides the right compression for a leak-proof connection. EPDM with 70 Shore A hardness offers durability in hot-water systems and works with food-safe cleaning agents.

Before installation, wipe the ring with a damp cloth. No lubricant is needed, as the material remains supple. Store in a cool, dry place away from sunlight to avoid premature wear.

This O-ring replaces the original part in SCHAERER coffee machines, fitting water and steam circuits of the specified models. It is not compatible with rings of different sizes or materials.

Listed in the SCHAERER spare-parts catalogue under article number 3322753000.