AVM7 stainless steel thermostatic air vent for clean steam systems
Overview
The Spirax Sarco AVM7 is a maintainable 316L stainless steel thermostatic air vent used to remove air and other non-condensable gases from clean steam systems. Removing those gases matters because air pockets reduce heat transfer, delay warm-up and can undermine steam quality at sterilisers, SIP lines and other hygienic point-of-use duties. The source material positions the AVM7 as a self-draining clean steam vent that operates close to saturated steam temperature, allowing gas removal without unnecessary live steam loss once the steam space has heated up. It is especially useful where system geometry or operating conditions leave gases trapped beyond the reach of the main condensate drainage point, particularly at line high points and difficult-to-vent branches. AVM7 therefore fits naturally into clean steam packages that also depend on dedicated generation, hygienic trapping and sanitary pressure or control hardware.
Where AVM7 fits in a hygienic steam line
AVM7 is typically specified where trapped gases would otherwise slow plant start-up, reduce usable heating surface or leave a clean steam branch slow to reach the right operating condition. The source documentation also describes a self-draining installation approach, which makes the vent easier to align with hygienic pipework expectations.
Typical clean steam duties
- Steriliser and autoclave distribution lines
- SIP branches feeding process vessels
- High points in clean steam mains
- Hygienic pipework where maintainability and
316Lconstruction matter
Continue the clean steam selection
- Compare clean steam traps when condensate drainage and air removal need to be coordinated in the same system.
- Explore clean steam generators when the duty starts with producing dedicated clean steam upstream.
- Browse the wider clean steam range to connect venting with separation, filtration and sanitary valve selection.