Water Treatment Plant Color Guide

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Wastewater Treatment Plant Color Coding

Also include an arrow to indicate direction of flow. Also a Second helpful guide would be our Pipe Marking Guide.

————————– START of Ten States Standards, Section 2.14, PIPE COLOR CODING ————————–
To facilitate the identification of piping in plants ad pumping stations it is recommended that the following
color scheme be utilized:

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 or 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 and Coagulant Aids — Orange with Green Band
Soda Ash — Light Green with Orange Band
Sulfuric Acid — Yellow with Red Band
Back Wash Waste — Light Brown
Sludge — Dark Brown
Sewer — Dark Gray

Other
Compressed Air — Dark Green
Gas — Red
Other Lines — Light Gray

In situations where two colors do not have sufficient contrast to easily differentiate between them, a six-inch band of contrasting color should be on one of the pipes at approximately 30-inch intervals. The name of the liquid or gas should also be on the pipe. I some cases it may be advantageous to provide arrowsindicating the direction of flow.
————————– END of Ten States Standards, Section 2.14, PIPE COLOR CODING ————————– Found Here

Similar Posts

• Understanding Australian Pipe Marking Standards (AS 1345-1995)
• Pipe Marking for Anhydrous Ammonia
• ANSI Pipe Marking Colors Standards
• Standard Markings for Pipes
• British Pipe Marking Standards
• Pipe Marking: The Basics You Need to Know
• Review of ANSI Color Codes For Pipe Marking
• ANSI Color Coding
• Compliance with Pipe Marking Standard Is Easy As 1-2-3

Additional Resources

• Waste Water Treatment Labeling
• A Guide to Pipe Marking Standards
• Your Guide to Pipe Labeling Standards
• Pipe Color Codes – ANSI/ASME A13.1
• Pipeline Labeling