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Medical Gas
Brackets and Clips
- Horizontal and vertical pipework must be mounted in accordance with Table 4.1 of AS2896. (horizontal pipe and vertical pipe support spacing).
- Pipe supports must:
- Prevent sagging or distortion of the system.
- Be mounted on brackets separate to other pipe system.
- Be suitable for medical gas pipelines and not utilise U bolt pipe clamps.
Pipework
- Pipework arriving on site with the caps missing must be rejected as unsuitable for use on medical gas systems and should be returned to the supplier for replacement.
Labelling
- Medical pipe lines in accordance with Clause 3.6 of AS 2896 must have pipe labelling:
- During the installation process.
- Wrapped completely around the correct tube and the incorrect arrow direction of flow removed.
- Every 6m or direction of work and either side of fire, smoke and acoustic walls where the service cannot be seen.
Testing
- Witness the pressure tests after installation of terminal units (but before the wall is closed in) on each section of the piping system.
Seismic Restraint
Seismic restraints/bracing in accordance with AS1170.4 - 2007 must be:
- Detailed and installed as per approved shop drawings
- Installed for medical gas services
- Separation between restrained and unrestrained services must be in accordance with the table below:
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