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    March 19, 2018
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Gnarly Wraps™ Reusable, Custom Pipe Label Sleeves

ANSI/ASME A13.1 Color Coded labels, with custom label Text, Constructed of Genuine 1050 Ballistic Nylon Fabric

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Gnarly Wraps™ Reusable Pipe Label Sleeves
ANSI/ASME A13.1 Color Coded, with custom Text
Constructed of 1050 D Ballistic Nylon

Customizable, Reusable Pipe Label Sleeves by Gnarly Wraps™ is available in these colors

A Durable, Reusable, Custom Labeling System for Pipes, Hoses and cables.

These Gnarly Wraps™ Reusable, Custom Pipe, hose and cable Labeling Sleeves are constructed of 1050 Ballistic Nylon fabric, with a fully enclosed 3mil laminated colorfast label, sewn into a flame resistant 20 gauge clear vinyl window, that is Alkali & Acid resistant, and easy to clean with a damp cloth & common window cleaner if needed.

Reusable closure consists of Industrial Hook & Loop fastener rated for over 1,000 open and close cycles. Rated for constant outdoor use, and resistant to ambient temperatures from -40f to 250f. Great for dirty, grimy, dusty, wet and generally rough industrial locations that make ordinary "sticker type" pipe labels fall off, or become completely illegible after a short period of time.

Gnarly Wraps™ Reusable, Custom Labeling Sleeves are ideal for labeling whole bundles of cables or hoses due to our open wrap, 'peelable' design that makes installation and removal fast and easy, without requiring disconnection or removal of any cables and hoses.

Additionally, Gnarly Wraps™ Reusable Pipe Label Sleeves are easy to order online, with no minimum order quantity, and are fully customizable, allowing you to choose the exact text and special characters to appear on the label, up to 20 ASCII characters, upper case, lower case, numbers and any combination thereof; plus optional flow arrows to indicate the flow of material within the hose or pipe.

All of our print production and sewing is done in-house, so fast, same day or 1 day turn-around on many orders is possible. Call us for more information on production times for your particular order if you require expedited production and shipping.

Specialized unicode characters, foreign language text, as well as graphics / JPG images, and additional non-standard color schemes can also be printed onto Gnarly Wraps™ Reusable Pipe Label Sleeves. Contact us for more information on special printing and artwork submission.

Complying with OSHA labeling requirements for Pipes and Hoses.

While OSHA does not have Pipe or Hose labeling and marking specifications, OSHA refers to the ANSI/AME A13.1 pipe marking standards for various industries. Therefore the ANSI/AME A13.1 standard is preferred by OSHA. Pipe labeling falls into the category of OSHA's General Duty Clause which requires industrial facilities and employers to provide and maintain a safe workplace.

Failing to properly label pipes and hoses may violate OSHA's General Duty Clause creating liability for employers and could result in an OSHA citation.

Complying with OSHA labeling requirements:

ANSI/ASME A13.1 specifies that labels should be placed on pipes:

  • Adjacent to all valves & flanges

  • Adjacent to all changes in pipe direction

  • On both sides of wall, floor or ceiling penetrations

  • Every 50 feet on straight runs of pipe (or every 25 feet in congested locations)

ANSI/ASME A13.1 specifications recommend the following color codes based on the type of hazard that could created by hose or pipe's contents. These recommended color codes are:

ANSI/ASME A13.1 Pipe Label Color Code Specifications

Standard offering of color schemes for Gnarly Wraps™ Pipe and Hose Labeling Sleeves
(other color schemes are available as a special order)

Pipe Contents

Color Scheme

Fire-Quenching Fluids

White Text on Red Background
(ANSI SAFETY RED / Pantone: 485)

Toxic or Corrosive Fluids

Black Text on Orange Background
(ANSI SAFETY ORANGE / Pantone: 152)

Flammable or Oxidizing Fluids

Black Text on Yellow Background
(ANSI SAFETY YELLOW / Pantone: 109)

Combustible Fluids

White Text on Brown Background
(ANSI SAFETY BROWN / Pantone: 168)

Other Water

White Text on Green Background
(ANSI SAFETY GREEN / Pantone: 3415)

Compressed Air or Other Gases

White Text on Blue Background
(ANSI SAFETY BLUE / Pantone: 2945)


White Text on Purple Background
(ANSI SAFETY PURPLE / Pantone: 253)


Black Text on White Background
(ANSI SAFETY WHITE / Pantone: White)


White Text on Gray Background
(ANSI SAFETY GRAY / Pantone: 430)


White Text on Black Background
(ANSI SAFETY BLACK /Pantone: Black)

Note: Your computer monitor, mobile device, or printer may not display these colors correctly. Actual printed label colors are formulated in accordance with the Pantone® color system and may vary slighty from the colors represented on this chart.

The color scheme chart above is based on the ANSI/ASME A13.1 color code system which uses six predefined colors and four user-defined colors to identify various pipe / hose contents. Please consult all applicable safety codes, regulations, and local policies used by your facility when selecting the color scheme for your Gnarly Wraps™ Pipe & Hose identification sleeves. There are no refunds, returns or exchanges for customer mistakes regarding color schemes or labeling text.

In order to ensure visibility, minimum label and text sizes are required, based on the hose or pipe's Outer Diameter (OD).

The minimum label and text sizes for pipe labeling is also defined by ANSI code and is based on the pipe / hose outer diameter. Gnarly Wraps™ Pipe & Hose identification sleeves are fitted with labels / label text of the following sizes:

Specifications Chart for Gnarly Wraps™
Pipe and Hose Label Sleeves

(based on ANSI/ASME A13.1 pipe labeling requirements)


Standard font used on all labels is Arial Bold.
Other custom, non-standard sizes, text fonts,
and graphics are available as a special order.

Hose / Pipe
Outer Diameter
Label Length
(as per ANSI)
Gnarly Wraps™
Label Sizes
(Length X Width)
Gnarly Wraps™
Label Text
Letter Height
(as per ANSI)
Sleeve Length
0.7588 X 10.512
1.088 X 10.512
1.5812 X 10.7514
2.0812 X 10.7514
2.51213.5 X 21.2516
3.01213.5 X 21.2516
3.51213.5 X 21.2516
4.01213.5 X 21.2516
4.51213.5 X 21.2516
5.01213.5 X 21.2516
5.51213.5 X 21.2516
6.01213.5 X 21.2516
Note: Specifications are subject to change without notice. All product measurements are approximate within 0.150" + -

Gnarly Wraps™ Reusable, Custom Pipe Label Sleeves meet or exceed the ANSI/ASME A13.1 labeling requirements and label / text sizes, and offer a more durable means of labeling pipes and hoses than adhesive backed "sticker" type labels.

PANTONE®, PantoneLIVE and other Pantone trademarks are the property of Pantone LLC. All other trademarks or registered trademarks are the property of their respective owners. Pantone is a wholly owned subsidiary of X-Rite, Incorporated. Licensed under Sun Chemical Corporation. Sun Chemical's patented technology enables the communication of a consistent, digital description of the desired appearance of a product. - [U.S. Patent Nos. 7,034,960; 7,202,976; 7,268,918; 7,417,764 and their foreign equivalents].

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