P3 NIST Test Units
P3 NIST Test Units
Testing and commissioning a medical gas pipeline needs dedicated equipment that connects safely and reads pressure accurately. P3 supplies test units designed for carrying out the tests set out in HTM 02-01 and HTM 2022 through NIST connectors.
What is it?
The unit connects to a NIST point on the pipeline and includes a manual isolation/vent valve with a lockable handle so the test condition can be set safely. It is available with fittings to suit digital manometers or analogue pressure gauges, and a universal BS probe version is also available.
Features
- Designed for carrying out the NIST-connector tests outlined in HTM 02-01 and HTM 2022
- Available with fittings to suit digital manometers or analogue pressure gauges
- Includes a manual isolation/vent valve with a lockable handle
- Universal BS probe version also available
- 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 Purity & Moisture Analyser
Purity and moisture analyser used to verify medical gas quality at terminal units.
P3 Line Valves and Non-return Valves
Lockable line isolation valves, a NIST-connector version and non-return valves, all fully leak tested.
P3 NIST Tee Assemblies
NIST tee assemblies from 12 mm to 28 mm with user-serviceable non-return valves and a blank NIST protection cap.
Related technical articles
What are Medical Gas Systems?
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Medical Gas Testing
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Medical Gas Maintenance
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Frequently asked questions
When is a test unit used?
During pre-handover testing, in periodic checks, and after any extension or modification to the pipeline.
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.
