DS:5 Best Practice to Pipe Marking

 Pipe Marking Guidelines for Safety Professionals

Proper pipe marking enhances workplace safety, improves operational efficiency, and ensures compliance with relevant standards.

Importance of Pipe Marking

• Safety: Minimizes accidents by reducing identification errors.
• Efficiency: Saves time by eliminating the need to trace pipes to their sources.
• Compliance: Reduces liability and avoids regulatory fines.

Pipe Identification Standards

The ANSI/ASME A13.1 standard outlines guidelines for identifying pipe contents using primary and secondary methods, including specifications for size, color, and placement of markers.

Primary Identification

• The primary method involves a text legend (indicating pipe content) and directional arrows to show flow direction.
• Arrows can be placed at one or both ends of the marker.
• Refer to the ANSI/ASME size chart and installation guide for detailed requirements.

Secondary Identification

• Color coding serves as the secondary means of identification.
• Recent updates to the standard include:
• Addition of Brown/White for combustible fluids.
• Introduction of Orange/Black for toxic or corrosive fluids.
• Inclusion of user-defined color combinations for customization.
• For safety consistency, use recommended colors from the ANSI Z535.1 standard.

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How to Label Pipes Properly

1. Create a Legend List: Compile a comprehensive list of pipe contents in your facility.
2. Collect Piping Data: Include information such as:
• Pipe contents.
• Outside diameter (including insulation).
• Quantity of markers required.
• Pressure and temperature.
• Flow direction and specific locations.
3. Use Current Documents: If available, use updated blueprints or P&IDs to avoid manual line tracing.
4. Choose Colors and Text:
• Ensure consistent color coding across all markers.
• Train workers to understand the system.
• Use simple, clear terms with sans-serif fonts (e.g., Arial or Helvetica) for readability.

By adhering to these guidelines, you can create a safer and more efficient workplace while maintaining compliance with industry standards.

Source: Creative Safety Supply & Graphic Products
Collected by Doshti Academy and Indian Safety Association

Disclaimer: The information provided in this article is for general informational purposes only. While every effort has been made to ensure accuracy, we make no guarantees about the completeness or reliability of the content. Users should consult product manufacturers or relevant authorities for specific requirements.