Bezzera group O-ring — 32.9 × 3.53 mm, hot water and steam resistant
Part no. ET-100247
O-ring measuring 32.9 × 3.53 mm in EPDM, sealing inside the brew group assembly on Bezzera machines. EPDM keeps its elasticity in constant contact with hot water and steam, without hardening or swelling the way ordinary rubber does. A replacement part in the exact 32.9 × 3.53 mm size for this seat.
This is the O-ring for the group assembly on Bezzera machines. Measure the 32.9 mm inside diameter and the 3.53 mm section on the old seal: those two figures define the part.
What are its dimensions?
It measures 32.9 × 3.53 mm in EPDM. An O-ring of roughly the right section seals on day one and starts weeping again within weeks.
Why EPDM rather than another rubber?
EPDM is the reference material for hot water and steam: it keeps its elasticity at group temperature, does not swell and leaves no taste. That is why it appears in the internal seats of the group.
Which symptoms mean it should be changed?
An internal leak at the group, a constant drip into the tray with no coffee running, or pressure dropping during extraction. On stripping down, a flattened, hard or split O-ring confirms it.
How do I order?
Give us the diameter and the section through Request a quote: we reply with availability and lead time. We ship from Portugal to the whole of Europe.
All brand names are registered trademarks of their respective owners and are used solely to indicate part compatibility. ESPRESSOTECHNIC is not an authorised representative of these brands unless expressly stated otherwise.
