P3 Medical Gas Terminal Units
P3 Medical Gas Terminal Units
A terminal unit is where medical equipment connects to the gas pipeline, and each gas socket accepts only its matching probe so that cross connection is prevented. Phoenix Pipeline Products (P3) manufactures a UK-made terminal unit family in different gas, mounting and first-fix connection configurations.
What is it?
Each unit has a 1st fix connected to the pipeline and a 2nd fix carrying the self-sealing valve and the gas-identified fascia. The 1st fix differs by location: a Ø12 mm copper stub brazed into the pipeline, a NIST connector, or a rear-entry hose barb for pendants. Units are fully tested and certified prior to despatch per the manufacturer's published data.
Features
- Available configurations: flush/surface wall mounting, a NIST version, bedhead units (rear, right-hand, left-hand) and pendant units (rear-entry barb, rear-entry NIST, 90° rear-entry NIST)
- Available for oxygen, nitrous oxide, 50% oxygen/50% nitrous oxide, medical air, surgical air, medical vacuum, AGSS, carbon dioxide and nitrogen
- Meets the requirements of HTM 02-01 and HTM 2022 for medical gas pipeline systems, plus BS EN ISO 9170-1, BS EN ISO 9170-2, BS 5682, BS 8532 and BS EN ISO 18082
- Wall-mounted versions are supplied with a mounting box kit
- Ø12 mm copper stub 1st fix for brazing into the pipeline on wall and bedhead versions
- Every unit is tested and certified before despatch
- 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

Medical Gas Outlets
Medical gas terminal unit at the patient point with a gas-specific connection that prevents wrong connection.
P3 Area Valve Service Units (AVSU)
AVSUs in a lockable metal or polymer enclosure, with breakable-window or emergency-release access and optional pressure sensors.
P3 Medical Gas Pendants
Rigid, retractable or flexible ceiling pendants carrying up to 9 terminal units and 8 twin electrical sockets.
P3 Medical Gas Hose Assemblies
Phthalate-free anti-static polyurethane hoses, colour coded to BS EN ISO 5359.
Related technical articles
What are Medical Gas Systems?
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Medical Gas Pipeline Design
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Medical Gas Testing
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Frequently asked questions
Does the unit differ by gas type?
Yes. Each gas has its own socket keying, colour and identification so that only the matching probe fits, and the same family is available in the gas configurations listed above.
Which configuration suits a ceiling pendant?
The pendant units with rear-entry barb, rear-entry NIST or 90° rear-entry NIST, mounted vertically or horizontally inside the pendant as the design requires.
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.
