Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Colored piping in water treatment plants.

Status
Not open for further replies.

Pump2005

Civil/Environmental
Jan 14, 2006
72
I am looking for a listing of what color certain pipes should be colored in a treatment plant. I was told raw water pipes are red but have not found that stated anywhere. Any help would be greatly appreciated.
 
Replies continue below

Recommended for you

pump2005

usabluebook has a copy of the ten states standards in their catalog, link below


but check your state, I know some states require marking in accordance with ASME boiler code which have labels according to hazard level: white on green, no hazard; black on yellow, hazard; white on red, fire system.

Hydrae
 
From Article 2.14 of the Ten States Standards

Water lines
raw or recycle olive green
settled or clarified aqua
finished or potable dark blue

Chemical Lines
alum or primary coagulant orange
ammonia white
carbon slurry black
caustic yellow with green band
chlorine (gas and solution) yellow
chlorine dioxide yellow with violet band
fluoride light blue with red band
lime slurry light green
ozone yellow with orange band
phosphate compounds light green with red band
polymers or coagulant aids orange with green band
potassium permanganate violet
soda ash light green with orange band
sulfuric acid yellow with red band
sulfur dioxide light green with yellow band
backwash waste light brown
sludge dark brown
sewer (sanitary or other) dark gray

compressed air dark green
gas red
other lines gray
 
I believe the American Public Works Association (APWA) is also an entity that publishes a "Uniform Color Code" that is sometimes used to temporarily etc. mark at least some underground utility lines (you could see much about this in a web search, e.g. colorful depiction at
 
Where are you located? the pipe colors are sometimes regulated by local laws. The answers above probably are related to USA.

rgs
 
Thanks for the responses. I am in NJ.
 
Pump2005

NJ is one of the ten states...

Hydrae
 
Thanks hydrae. usabluebook has a great listing and covers about everything water and chemical I have.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor