Medical Gas Piping

Medical gas systems include

• compressed air - medical and surgical
• compressed air - high pressure instrument
• compressed air - laboratory
• compressed air - dental
• oxygen
• nitrous oxide
• carbon dioxide
• nitrogen
• vacuum - surgical/medical
• vacuum - waste anesthesia gas disposal (WAGD)
• vacuum - laboratory
• vacuum - dental

Compressed Air - Medical and Surgical

• Common delivery pressure: ~50 psig (~3.5 bar)

This is low pressure dedicated system not allowed for other use than medical and surgical.

Compressed Air - High Pressure Instrument

• Common delivery pressure: ~120 psig (~8 bar)

This is a high pressure system providing compressed air to pneumatic equipment.

Compressed Air - Laboratory

• Common delivery pressure: ~30 psig (~2 bar)

Compressed Air - Dental

• Common delivery pressure: ~90 psig (~6 bar)

Oxygen

• Common delivery pressure: ~50 psig (~3.5 bar)

Nitrous Oxide

• Common delivery pressure: ~50 psig (~3.5 bar)

Carbon Dioxide

• Common delivery pressure: ~50 psig (~3.5 bar)

Nitrogen

• Common delivery pressure: ~160 psig (~11 bar)

Vacuum - Surgical and Medical

• Common vacuum pressure: ~50% (15 inc mercury gauge, 500 mbar abs)

Vacuum - Waste Anesthesia Gas Disposal (WAGD)

• Common vacuum pressure: ~50% ( 15 inc mercury gauge, 500 mbar abs)

Vacuum - Laboratory

• Common vacuum pressure: ~50% ( 15 inc mercury gauge, 500 mbar abs)

Vacuum - Dental

• Common vacuum pressure: ~50% ( 15 inc mercury gauge, 500 mbar abs)

Reference - NFPA 99: Health Care Facilities

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