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Medical gas pipeline system (MGPS) installation and maintenance

Every outlet, the right gas, the right pressure.

UNISSI designs and installs medical gas pipeline systems for wards, ICUs and operation theatres, from the plant room to the bedside outlet. We also maintain existing systems under CMC and supply cylinders, trolleys and consumables.

Ask for a quotation
ZONE VALVES OUTLETS

What we install

From the plant room to the bedside.

A complete MGPS, or any part of one when you are extending or upgrading.

SOURCE

Plant room

  • Medical air plant, 4 bar
  • Surgical air plant, 7 bar
  • Medical vacuum plant with bacterial filters
  • N₂O and CO₂ cylinder manifolds
  • AGSS plant
  • LMO tank and PSA plant tie-ins
PIPELINE

Copper distribution

  • Seamless degreased medical-grade copper
  • Flux-free silver brazing
  • Colour-coded gas ID bands
  • Risers and branch lines
VALVES

Isolation

  • Area valve service units (AVSU) at every ward, ICU and OT
  • Line valve assemblies on risers
  • Non-return valves
ALARMS

Monitoring

  • Master alarm panel for source equipment
  • Area alarm panels at nurse stations
  • Pressure transducers and switches
OUTLETS

Terminal units

  • Gas-specific outlets: BS, DIN or Ohmeda
  • AGSS outlets in theatres
  • Bed head panels
  • Ceiling pendants
BEDSIDE

Patient equipment

  • Oxygen flowmeters with humidifiers
  • Vacuum regulators and suction jars
  • Theatre vacuum units
  • High-pressure hoses and probes

How an MGPS works

Every gas, in its own line, to every bed.

Each gas runs in its own copper line from the plant room to the outlets, with valves to shut off one zone and alarms that warn staff before a patient is affected. Tap any part to see what it does, or tap a zone valve to shut it.

Situation

Swipe sideways to see the whole system.

Medical gas pipeline system schematic Oxygen, nitrous oxide and medical air leave the plant room, run along colour-coded copper mains and drop through a zone valve box into the ICU, the operation theatre and a ward, where they reach the outlets on bed head panels and the OT pendant. Vacuum runs the other way, from the outlets back to the vacuum plant. A master alarm watches the sources and an area alarm watches each zone. PLANT ROOM COPPER MAINS, COLOUR-BANDED BY GAS MASTER ALARM O₂ SUPPLY O₂ RESERVE IN USE N₂O CHANGE CYL MEDICAL AIR VACUUM PLANT O₂ SOURCEPSA / LMO · 4.2 bar O₂ RESERVEcylinder bank N₂O MANIFOLD MEDICAL AIR PLANT4.0 bar compressors and dryers VACUUM PLANT 450 mmHg EXHAUST OUTSIDE O₂AIRVACICUICU BED HEAD PANELSLEAKO₂N₂OAIRVACOPERATION THEATREOT PENDANTO₂VACWARDWARD BED HEAD PANELS

All gases at normal pressure.

Oxygen line
4.2 bar
Medical air line
4.0 bar
Vacuum
450 mmHg
ICU oxygen at the bed
4.2 bar

Selected part

Typical figures

What we check on a CMC visit

Outlet planner

How many gas outlets will you need?

Enter the beds and theatres on the new pipeline to see a first count of outlets for each gas. Your tender specification sets the final numbers.

Areas on the pipeline
Outlets per bed we assume
AreaO₂N₂OAir 4 barAir 7 barVacuumAGSS
ICU beds2–2–2–
HDU beds2–1–2–
General ward beds1–––1–
Emergency and resuscitation bays2–1–2–
Recovery beds1–1–1–
NICU cots2–2–1–
Operation theatres212121

Typical planning figures based on HTM 02-01. State tenders often ask for more; we build to your specification.

Gas outlets in all—
O₂
—
N₂O
—
Air 4 bar
—
Air 7 bar
—
Vacuum
—
AGSS
—

Area valve boxes and alarm panels are planned per ward and theatre suite on the survey.

Ask for a quotationSize the oxygen plant

Gas identification

Colour codes we label every pipe with.

Every line carries a colour-coded ID band at regular intervals and at each turn. Each outlet is gas-specific, so an oxygen probe cannot fit a vacuum outlet.

GasSymbolBand colourTypical supply
OxygenO₂White4 bar
Nitrous oxideN₂OBlue4 bar
Medical airAIRBlack and white4 bar
Surgical airAIR 7Black and white7 bar
VacuumVACYellowSuction
Carbon dioxideCO₂GreyManifold, for laparoscopy

From the plant room

Inside a hospital plant room.

Compressed air, oxygen control, alarms and the power behind them.

Compressed air

FS-Curtis SEM40 rotary screw air compressor with its controller and emergency stop button, in a hospital plant room
Screw air compressorFS-Curtis SEM40
Air receiver labelled Air Tank 1, beside a Trident Dryspell air dryer and a bank of three compressed-air filters
Air receiver and dryerAir Tank 1, Dryspell dryer
Bank of three compressed-air filters, each with a differential pressure gauge whose needle sits at the clean end of the scale
Compressed-air filter bankDifferential pressure gauges
Close-up of a Trident compressed-air filter with a differential pressure gauge at the clean end of its scale, beside the air receiver and dryer
Compressed-air filterTrident, differential pressure gauge

Oxygen control and alarms

Wall-mounted Fully Automatic Oxygen Control System panel with gas indication lamps and three pressure gauges, fed by a gas line from above and connected to hoses on either side
Automatic oxygen control panelGas indication and pressure gauges
Yellow and white banded gas line with a Festo solenoid valve, ball isolation valves and a bypass loop, above two cylinder valves
Solenoid valve and bypass loopIsolation valves on the gas line
Digiline medical gas alarm panel with three digital pressure displays and status lights, connected to three gas lines through isolation valves
Medical gas alarm panelDigiline, three gas channels

Power

Mains and generator changeover panel with a voltage monitoring relay reading 231 volts, load indicator lamps and manual and auto selector switches
Mains and generator changeoverVoltage monitoring relay
Electrical distribution panel with an outgoing feeder labelled Medical Air, two main line incomers, and a voltmeter and ammeter
Main electrical panelMedical Air outgoing feeder

Recent MGPS work

Pipelines we look after.

  • ESIC Hospital, NoidaMGPS CMC
  • Barpeta Cancer Centre, AssamMGPS CMC for Assam Cancer Care Foundation (2026)
  • Police Hospital, Jammu40 oxygen and 10 N₂O D-type cylinders, 5 MGPS trolleys (2026)

Questions hospitals ask us

MGPS questions

What is a medical gas pipeline system (MGPS)?

An MGPS carries oxygen, nitrous oxide, medical air, surgical air and vacuum from a central plant room to outlets at each bed and theatre, so staff do not move cylinders around the wards.

What copper is used in a medical gas pipeline?

Seamless, degreased, de-oxidised medical-grade copper, typically to EN 13348 or ASTM B819 as the tender specifies, joined by flux-free silver brazing so no residue is left inside the pipe.

What does an MGPS CMC cover?

Periodic inspection and leak checks, testing of area and master alarms, servicing of source equipment such as compressors, vacuum pumps and manifolds, and repair or replacement of valves, outlets and consumables.

Can you connect the pipeline to a PSA plant or LMO tank?

Yes. We tie the pipeline into PSA oxygen plants, liquid oxygen tanks and cylinder manifolds, with automatic changeover to backup supply.

Contact

New pipeline, extension or CMC?

Tell us the number of beds and theatres, the gases you need and the hospital's location. We will arrange a survey.

info@unissi.in
+91 93100 31900
+91 99110 04990
+91 99110 04995
Registered office · Gurugram

WW10, Windchants, Experion, Sector 112,
New Palam Vihar, Gurugram, Haryana 122017

Delhi

Plot No 20, Village Raghopur,
Najafgarh, New Delhi 110071

Jaipur

Khasra No 53, Rajpura Patalwas,
Bassi, Jaipur, Rajasthan 303305