CMS Area Valve Service Unit (AVSU)
CMS Area Valve Service Unit (AVSU)
An AVSU is the recognised isolation point for each care area. It lets the operations team shut off gas to a department during a fire, a leak or modification works without affecting the rest of the building.
What is it?
The unit connects directly to the medical gas mains through copper tail pieces supplied as part of the assembly, and is surface mounted to avoid builders' work or flush mounted into a prepared wall. The box holds one valve per gas behind an emergency break-glass panel, and a blanking spade can be fitted in place of a valve where a future extension is prepared.
Features
- Surface mounting with no builders' work, or flush mounting into the wall
- Copper tail pieces supplied with the assembly for direct pipeline connection
- A separate valve per gas with clear identification of the served area
- A blanking spade can replace a valve where a future extension is prepared
- Manufactured in the United Kingdom
- Products from this brand are available according to project requirements and availability.
Applications
- Hospitals and medical complexes
- Operating theatres and intensive care units
- Emergency and inpatient departments
- Day-surgery centres and clinics
- Laboratories and supporting medical applications
- Expansion and medical gas pipeline refurbishment projects
Technical specifications
Technical specifications and brands are set per project and per the approved specification — contact us for the technical data suited to your case.
Related products
Single AVSU
Single-gas area valve service unit with pressure indication and an emergency break-glass window.
AVSU Module
Modular AVSU element assembled according to the number of gases required.
CMS Medical Gas Alarm Panel
An area alarm panel monitoring medical gas pressure and raising visual and audible warnings when pressure falls outside limits.
CMS Lockable Line Valve
A lockable line valve in multiple pipe sizes, with NIST variants, isolating branches of the medical gas pipeline.
Related technical articles
Medical Gas Pipeline Design
In preparation
Area Valve Service Units (AVSU)
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Medical Gas Maintenance
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Frequently asked questions
Where is an AVSU installed?
In a visible, easily reachable position at the entrance to the area it serves, so the operations team can isolate the gas quickly, with a label identifying the area each valve serves.
Have a project or an existing facility that needs an engineering review?
Our engineering team can review your requirement and propose a solution suited to the application, the site and the applicable requirements.