Orm gasket LF L1186647

A replacement sealing ring for the brew group of professional super-automatic coffee machines, this red silicone gasket maintains the pressure that extracts espresso. The ring sits between metal faces; when the group closes, the silicone compresses to form a gas-tight seal. Without it, steam and hot water escape, weakening the shot and leaving grounds in the cup.

The operator does not handle the gasket directly during normal use. Once fitted, it remains inside the machine until the next service. The brew group opens and closes automatically with each cycle, so the gasket is compressed and released hundreds of times a day. Over months, the silicone gradually hardens and loses its elasticity, at which point the machine signals a service alert or the shot quality drops.

This gasket is a continuous ring of food-grade silicone, 2.0 mm thick and with an internal diameter of 9.0 mm. The red colour is a factory dye that helps technicians identify the correct part quickly during maintenance.

The 2.0 mm thickness is chosen to give enough compression without over-stressing the silicone. A thinner ring would not seal reliably; a thicker one would require more force to close the group, increasing wear on the motor and mechanism. The 9.0 mm internal diameter matches the standard portafilter spout on the listed machines, ensuring a precise fit that does not shift during extraction.

Cleaning is limited to the external surfaces of the brew group. The gasket itself is not removed for routine cleaning; it is replaced only when the machine's service interval or performance indicates it is worn. When replacement is needed, the old ring is peeled out and the new one pressed into the groove by hand, taking care not to twist or stretch it.

This is the Orm gasket 0090-20 in red silicone. It is a direct replacement for the original part on the specified Gaggia, Krups, Lavazza and Saeco coffee and vending machines.