We design, install, test and certify medical gas pipeline systems for hospitals, clinics and laboratories, from the source plant to the terminal unit at the bedhead.
Medical gases are the one service in a hospital where an installation fault is measured in patient harm rather than in snagging. A cross connection between oxygen and nitrous oxide, a brazed joint made without a nitrogen purge, a terminal unit that accepts the wrong probe: each of these is a defect that survives a visual inspection and only shows itself in use.
Green Flash installs medical gas pipeline systems to ISO 7396-1 and NFPA 99, with pipework and jointing to EN 13348, and we treat verification as part of the installation rather than a formality at the end. Medical gases are a named scope on our ISO certification, which means the procedures we follow on a hospital floor are the same audited procedures that cover the rest of our work.
Because we are an electromechanical contractor, the gas system is coordinated with the HVAC, electrical and fire fighting packages on the same drawings and by the same team, rather than handed to a separate specialist who arrives after the ceiling grid is closed.
Automatic changeover manifolds for oxygen, nitrous oxide, carbon dioxide and nitrogen, medical air compressor plant with duplex dryers and filtration, and medical vacuum plant with receivers and bacterial filters. Where a liquid oxygen vessel is used we build the slab, the barrier and the pipework interface up to the vaporiser.
Degreased copper tube to EN 13348, brazed under a continuous nitrogen purge so no oxide scale forms inside the line, supported, labelled and colour identified along its whole route. Every joint is recorded, and the system is pressure tested in sections as it is built rather than only at the end.
Area valve service units at each department boundary so a ward can be isolated without closing the floor, with master, area and plant alarm panels monitoring pressure at the points that matter and annunciating at the nurse station and the plant room.
Gas specific terminal units installed in bedhead trunking, pendants and theatre columns, each one probe tested so a nitrous oxide probe cannot enter an oxygen outlet, plus anaesthetic gas scavenging in theatres and recovery.
We size the system from the clinical brief: the number and type of terminal units, the diversity factors for each department, and the design flow and pressure at the furthest outlet. Theatres, ICU and NICU drive the design, not the bed count.
Brazers work to qualified procedures with nitrogen purge, open ends are capped at the end of every shift, and the system stays sealed until testing. This is the stage where contamination enters a medical gas system, and it cannot be cleaned out afterwards.
Pressure and leakage testing, cross connection testing of every terminal unit against every gas, valve and alarm function testing, and particulate and purity testing of the delivered gas at the outlet. The cross connection test is done gas by gas across the whole installation, not sampled.
We produce the full test record, the as built drawings, the valve and zone schedule and the operation and maintenance manual, and we hand over against them. Hospital estates teams receive a system they can isolate, extend and maintain because the documentation describes what is actually in the wall.
Green Flash Engineering and Contracting has completed over 21 major projects across Saudi Arabia, supported by teams operating in Jeddah, Riyadh, Yanbu, Rabigh and King Abdullah Economic City. Medical gases sit in our healthcare projects portfolio alongside the HVAC, electrical and fire packages those buildings need.
Medical gases are a named scope on our certification, not an adjacent claim. Green Flash is certified to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 under certificates SCK/01/AWL/25/96/6215, SCK/02/AWL/25/96/6216 and SCK/03/AWL/25/96/6217, issued by SCK Certifications Pvt Ltd and valid to September 2028. The same quality system covers the brazing procedures, the test records and the verification documents that a hospital will ask to see before it accepts the installation. You can read how that system works on our ISO 9001 certified quality system page.
Where a project also needs controlled temperature storage for pharmacy, laboratory or mortuary use, we deliver that under the same contract as refrigeration.
ISO 7396-1 for the pipeline system itself and NFPA 99 where the project specification calls for it, with copper tube and fittings to EN 13348 and the Saudi Building Code applied throughout. If your consultant has specified HTM 02-01 we work to that instead. Tell us which standard governs the project and we will price against it.
We carry out the full installer test and verification regime, including cross connection testing of every terminal unit, and we produce the certification pack. Where the client or the authority requires independent verification by a third party we coordinate that visit and attend it, because the installer has to be present to answer for the system.
Yes. That is permit controlled work. We agree the isolation boundary with the estates team, provide temporary supply where a department cannot lose the gas, work in the shortest possible shutdown window and retest the affected zone before it goes back into service. Nothing is reconnected without a cross connection check on the altered section.
Yes. We supply the source plant, the manifolds, the alarm panels and the terminal units as part of the package, which keeps the responsibility for compatibility in one place. If the hospital has a standing equipment preference we procure to it.
Send the drawings, or just the department list and the terminal unit count. We will come back with the plant sizing, the pipework route and what the verification programme will take.
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