What the air (vent) valve does
The air vent valve releases air or excess pressure from the boiler or circuit of the coffee machine. It prevents air from building up in the system, which would disrupt the proper flow of water and steam and cause unstable pressure during coffee preparation.
When the part stops doing its job
- The coffee machine hisses or steam escapes from an unusual spot
- Boiler pressure fluctuates or fails to reach the required level
- Coffee brewing or milk frothing is slower or irregular
- Water drips from the valve even when the machine is not in use
Why timely replacement pays off
A leaking or stuck valve puts extra strain on the heating system and can lead to uneven pressure, affecting espresso quality and accelerating wear on other components. Timely replacement helps prevent bigger boiler or pressure circuit failures.
How to choose the right part
Valves differ in size and mounting method depending on the specific coffee machine model, so check the compatibility table on the product page before purchasing.
Compatible with
- S8
- M22
- M24-SELECT
- M28-COMPACT
- M29-COMPACT
- M2-BARSYSTEM (2007-)
- M2-BARSYSTEM (200504-)
- M2-PROGRAM
+ 138 more compatible models
- M29-SELECT
- M32-BISTRO
- M39-CLASSIC
- M39-DOSATRON
- BAR
- BART
- P90
- P TRE
- P UNO
- JUNIOR-D
- JUNIOR-S
- M20
- M21-JUNIOR-DT
- M21-JUNIOR-S
- M27
- M28-BASIC (199603-)
- M28-BASIC (200101-)
- M28-SELECT
- M28-SELECTRON (199603-)
- M28-SELECTRON (200101-)
- M28-START
- M30-BISTRO (198911-)
- M30-BISTRO (199002-)
- M30-CLASSIC
- M30-DOSATRON
- APPIA
- APPIA 1 GR 2008
- APPIA 2-3 GR 2006
- APPIA 2-3 GR 2008
- APPIA 2-3 GR 2011
- APPIA COMPACT 2 GR 2011
- MAC2000
- MAC CUP
- PREMIER
- M21-PREMIUM
- M32-CLASS
- M29-START
- OSCAR
- PREMIER MAXI
- AURELIA
- AURELIA II
- APPIA II 1 GR
- AURELIA 2-3-4 GR
- AURELIA II COMPETIZIONE 2-3 GR
- AURELIA II S - V - DIGIT 2-3-4 GR
- AURELIA II T3
- AURELIA WAVE 2019
- CLASSIC
- ECLISSE
- TEN
- TWENTY
- ZOLA-I
- EROICA
- IRIS
- AROMA
- S2
- S3
- S9
- PRATICA
- ENOVA-A (200706-)
- ENOVA-A (201002-)
- ENOVA-RESTYLING-A (201002-)
- DECO
- GE-GD
- LC/D
- TS
- ECO
- SYSTEMA
- DAFNE
- ENOVA-RESTYLING-S (201002-)
- ENOVA-S (200706-)
- CARMEN
- NORMA
- LB4800 (20130430-)
- DECO (200707-)
- DECO-D-E (201001-)
- GD (200612-)
- GD (200809-)
- GD (201001-)
- GD-COMPACT (200612-)
- GD-COMPACT (200809-)
- GD-COMPACT (201001-)
- GE (200612-)
- GE (200809-)
- GE (201001-)
- GE-COMPACT (200612-)
- GE-COMPACT (200809-)
- GE-COMPACT (201001-)
- AROMA-SE (200906-)
- AROMA-SE-COMPACT (200401-)
- AROMA-SM (200906-)
- AROMA-SM-COMPACT (200401-)
- AROMA SE2000
- AROMA SM2000
- SE2000 (200204-)
- SE2000 (200309-)
- SM2000 (200204-)
- NEW
- S5
- S5-COMPACT
- SELETRON PLUS
- GD-ONE (200612-)
- GD-ONE (201001-)
- GE-ONE (200612-)
- GE-ONE (201001-)
- LC-D (201001-)
- XD-EVOLUTION (200612-)
- XD-EVOLUTION (201001-)
- XE
- XE-EVOLUTION (200612-)
- AZ04
- PRATICA (201002-)
- BUBBLE (201503-)
- CENTO50 (201204-)
- DIVA (201603-)
- E9-ESPRESSO (201002-)
- ETA-BETA-V2 (201002-)
- DIECI (2019)
- DIECI (201001-)
- RAPID
- CHERUB
- HEAVENLY
- S1 VIVALDI
- SPAZIO
- DIVA-PRO
- ETA-BETA-V2 (200701-)
- ETA-BETA-V2 (200802-)
- KICCO (200705-)
- TEMA-STYLE (200701-)
- TD (200701-)
- TE (200701-)
- TS (200612-)
- TS (201001-)
- TEMA-DISPLAY (200405-)
- TN-94 (200701-)
- MICROCASA
- PRATICA (201212-)
- GENIUS
| Manufacturing company | Cimbali Group S.p.A. |
|---|---|
| Address | Via Alessandro Manzoni 17, 20082 Binasco (MI), ITinfo@cimbaligroup.com |


