PIPE MARKERS
MEETS AND
EXCEEDS NFPA-99 REQUIREMENTS
CGA Color Coded
Gas Name
Direction of Flow
Pressure Ranges 
| GAS |
Pressure Range |
Background/Text |
| Oxygen |
50-55 psi |
Green / White |
| Medical Air |
50-55 psi |
Yellow / Black |
| Vacuum |
n/a |
White / Black |
| Nitrous Oxide |
50-55 psi |
Blue / White |
| Nitrogen |
160-200 psi |
Black / White |
| WAGD |
n/a |
Violet / White |
| Carbon Dioxide |
50-55 psi |
Gray / White |
| Hyperbaric Oxygen |
70-150 psi |
Green / White |
| Hyperbaric Air |
70-150 psi |
Yellow / Black |
| Dental Air |
n/a |
Yellow & White Diagonal / Black |
| Dental Vacuum |
n/a |
Black & White Diagonal / Black |
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Call AMGI (866) 288-3783
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