There are a few different color codes of vacuum pipe lines. Green means water, grey s steam, brown is oils, tan is gases, purple means acids, blue is air, black is other liquids and red means fire services.
white
Yellow
reticulated system pipe line colour code
What is colour code for Poly vinyl acetate pipe line
Yellow
green
black colour
it is yellow with blue band
green
Blue
As per Indian standard its Brown colour. -------------------------------------------------------------------------------- There is no specific code for coding pipelines in the US, different industrial plants use different color schemes. Gray pipe with a dashed red stripe painted every 6 feet, yellow pipe with a solid red stripe every 6 feet, solid orange pipe (solid red pipe is always fire protection systems according to NFPA rules), brown pipe with red or black stripes every 6 feet....and so on.
Yellow
THE NORMAL CONDITIONS THE COLOUR OF lpg VAPOUR LINE IS GOLDEN YELLOW. BUT THERE IS MANY LINES FOR DIFRENT GASES YOU CAN CHANGE IT & COAD SAPERAT TO SIGN .
Hot? Cold? return? fire suppression ? Non Potable?