Flat EPDM gasket LF L1186206

A flat EPDM gasket creates a tight, heat-resistant seal between the portafilter and the group head of a professional coffee machine. EPDM rubber is chosen for its ability to withstand repeated exposure to hot water and steam without hardening or cracking. The material remains flexible across a wide temperature range, ensuring the seal does not fail during extraction or cleaning cycles. This prevents leaks that would otherwise reduce pressure and compromise the quality of the espresso shot.

The gasket is installed by removing the old seal from the group head, cleaning the groove thoroughly, and pressing the new gasket into place. It sits flush against the metal surface, forming a continuous barrier that directs water through the coffee puck rather than around it. Over time, the gasket compresses slightly under the force of the portafilter, which helps maintain a consistent seal even as the machine ages.

This 16 mm outer diameter, 10 mm inner diameter, 8 mm thick gasket fits the specified models of ASTORIA CMA, BFC, GRIMAC, LAVAZZA, MCE, ORCHESTRALE, ROYAL, SYNCHRO, VICTORIA ARDUINO and WEGA coffee machines. Its dimensions match the groove in the group head, ensuring a precise fit without stretching or bunching. The thickness determines how much the portafilter must be tightened to achieve a leak-proof seal, which affects the ease of use for baristas.

EPDM requires no special maintenance beyond regular cleaning with a damp cloth to remove coffee oils and residue. The material does not absorb water, so it will not swell or distort in wet conditions. Replacement is recommended when the gasket loses its flexibility or shows signs of wear, such as cracks or permanent deformation, to maintain optimal machine performance.

This gasket is listed in the spare parts section for professional coffee equipment.