For architects, engineers & specifiers

Specifications

Product MasterSpec® sections for pipe, valve and equipment identification, with Craftmark products as the basis of design. Download a section and drop it into your project manual.

23 05 53 HVAC 22 05 53 Plumbing ASME A13.1-2023 quick reference

ASME A13.1-2023 quick reference

The color scheme and minimum sizes the specs above point to. Craftmark markers are made to these, and you can check any color combination in our marker finder.

Color scheme

ContentsMarker / text
Fire quenchingRED / WHITE
Toxic & corrosiveORANGE / BLACK
Flammable, combustible & oxidizingYELLOW / BLACK
Steam, condensate, boiler feed & hot waterGRAY / BLACK
Potable, cooling & other cold waterGREEN / WHITE
Compressed airBLUE / WHITE
User definedPURPLE / WHITEWHITE / BLACKBROWN / WHITEBLACK / WHITE

Marker size by pipe OD

Pipe OD*Color fieldLetters
0.7″ – 1.3″8″0.5″
1.4″ – 2.4″8″0.75″
2.5″ – 6.7″12″1.25″
6.8″ – 10″24″2.5″
Over 10″32″3.5″

*Outside diameter of the pipe or covering. Insulated pipe? Measure over the insulation. Minimum sizes shown.

More for specifiers

Submittal sheetsData sheets for every product. Build one combined package PDF.Submittals → CatalogsFlip through or download the full product catalog.Catalogs → Marker finderEnter a pipe OD and see every marker and size that fits.Find a marker → Industry standardsASME, IIAR, CGA / NFPA 99, APWA and GHS references.Standards →

Writing a spec or reviewing a submittal?

Our team can help with product selection, spec language and substitutions for your project. Products are ASME A13.1 compliant and BABA compliant.

Contact our team → 1-800-MARKALL