Hot Gas Pipe Marker
Item #
RA-14
Wrap Around Marker Reads
Hot Gas
Compliance
IAAR Bulletin No. 114

Hot Gas Pipe Marker

Size:

Material:

Laminate:

Mounting:

Packaging:

Price:
$4.95
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Each
  • 1–9
    $4.95
  • 10–24
    $4.80
  • 25+
    $4.65

0 In Stock
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Product Information

Details

IIAR BULLETIN #114 - 2019 REVISION

Ammonia Snap-Around and Strap-On Pipe Markers are made using durable outdoor grade vinyl. Marker sizes RA to RE wrap completely around pipes up to 6" O.D. For pipes larger than 6" O.D. use strap on pipe markers, sizes RF, RG or RH.

Ammonia markers have been developed to help contractors comply with ANSI / ASME A13.1-2015 standards for piping identification and IIAR's Recommended Guidelines, Bulletin #114 Identification of Ammonia Refrigeration Piping and System Components 2019 Revision.

Bulletin #114 2019 states that all piping mains, headers and branches should be identified as to the physical state of the refrigerant, i.e. vapor, liquid, etc., the relative pressure level of the refrigerant and the direction of flow. All components of the refrigeration system, e.g. receivers, heat exchangers, accumulators, etc., should also be uniformly identified.

Pipe markers in accordance with Bulletin 114, are designed to identify the refrigerant contained within that piping segment (i.e., ammonia) including the physical state of the refrigerant, relative pressure level of the refrigerant and direction of flow.

  1. Ammonia Piping Abbreviations: The 2019 revision contains 31 abbreviations versus 17 contained in the 1991 Guidelines. See full list below.
  2. Color changes: The background color for Ammonia pipe markers shall be Safety Orange, following the color guidelines by ANSI Z535.1 Safety Color Code.
  3. Color changes: The color for the LIQUID physical state has also changed, it used to be Orange and is now Yellow.
  4. Component/ Equipment Marker Abbreviations: in the 2019 revision IIAR has supplied a list of the most common component abbreviations. See full list below.
  5. Piping Color Scheme: the scope of this new section is to provide a suggested, non-mandatory color scheme beyond a simple 'one color' or 'two color' scheme for ammonia refrigeration piping systems in machinery rooms. The color schemes may also be applied to portions of the refrigeration system beyond machinery rooms. Existing schemes for identification are considered acceptable. In those areas where state codes and government regulations are not conflicted, ammonia refrigerated facilities have the option to implement a company documented piping color scheme.

AMMONIA PIPE MARKER INFORMATION

Ammonia pipe markers will contain or be divided in 5 section or components:

  1. Abbreviation Section: Printed in black
  2. Physical State Section: Either LIQUID or VAPOR
    Printed in yellow for Liquid and sky blue for Vapor
  3. Marker Body: Body color to be Safety Orange and contain the refrigerant "AMMONIA" printed in black
  4. Pressure Level Section: Either LOW or HIGH.
    Pressure in excess of 70 psig will be considered to be high pressure and printed in black letters on a red band.
    Pressure equal to or less than 70 psig will be considered to be low pressure and printed in black on a green band.
  5. Directional Arrow: Detachable arrow printed in black.
  • 5 Components of an ammonia pipe marker

PIPE MARKER SIZE CHART

The following chart shows the recommended pipe marker letter height and marker size based on the outside pipe diameter of the pipe to be identified and the distance between the viewer and the pipe.

Considering these factors, the size of the pipe marker and lettering should be selected to provide quick and positive identification. Pipe location, from a viewer's standpoint, will be different on every installation. Therefore, on-site decisions will be necessary to provide the optimum pipe marking system.

  • Diameter (O.D.) Range Minimum Marker Width Minimum Marker Length Letter Size Physical State Pressure Level
    Up to 1-1/4" 1" 8" 1/2" 1/2" 1/2"
    Greater than 1-1/4" – 2" 1-1/2" 8" 3/4" 3/4" 3/4"
    Greater than 2" – 7" 2-1/2" 12" 1-1/4" 1" 1"
    Greater than 7" – 10" 3-1/2" 24" 2-1/2" 1-1/2" 1-1/2"
    Over 10" 4-1/2" 32" 3-1/2" 2" 2"

Brimar's Snap-Around & Strap-On Pipe Markers

  • Illust. of Ammonia Snap-Around Pipe Marker
    Ammonia Snap-Around Size RA
    For pipes with O.D. of 3/4" to 1"
    Legend Size: 1/2"
    Marker Size: 8"
  • Illust. of Ammonia Snap-Around Pipe Marker
    Ammonia Snap-Around Size RB
    For pipes with O.D. of 1-1/8" to 2-3/8"
    Legend Size: 3/4"
    Marker Size: 8"
  • Illust. of Ammonia Snap-Around Pipe Marker
    Ammonia Snap-Around Size RC
    For pipes with O.D.2-1/2" of to 3-1/4"
    Legend Size: 1-1/4"
    Marker Size: 12"
  • Illust. of Ammonia Snap-Around Pipe Marker
    Ammonia Snap-Around Size RD
    For pipes with O.D. of 3-3/8" to 4-1/2"
    Legend Size: 1-1/4"
    Marker Size: 12"
  • Illust. of Ammonia Snap-Around Pipe Marker
    Ammonia Snap-Around Size RE
    For pipes with O.D. of 4-5/8" to 6"
    Legend Size: 1-1/4"
    Marker Size: 12"
  • Illust. of Ammonia Strap-On Pipe Marker
    Ammonia Strap-On Size RF
    For pipes with O.D. of 6-1/8" to 7-7/8"
    Legend Size: 1-1/4"
    Marker Size: 12"
  • Illust. of Ammonia Strap-On Pipe Marker
    Ammonia Strap-On Size RG
    For pipes with O.D. of 8" to 10"
    Legend Size: 2-1/2"
    Marker Size: 24"
  • Illust. of Ammonia Strap-On Pipe Marker
    Ammonia Strap-On Size RH
    For pipes with O.D. over 10"
    Legend Size: 3-1/2"
    Marker Size: 32"

AMMONIA REFERENCE CHART

A reference chart that fully explains the ammonia refrigeration piping and component identification markers, including the approved abbreviations, should be placed in areas that are conspicuous to operating personnel. Regardless of the piping color scheme selected, a legend or key to the meaning of the colors should be posted in a conspicuous area. The reference chart, legend, or key should be made of durable material that will remain legible.

  • Ammonia Reference Chart Bulleting 114 2019

Compliance

Snap-Around and Strap-On Pipe Markers

These markers are made with high-quality PVC vinyl and printed with UV-resistant ink for maximum durability and are available in two formats: snap-around (coiled) and strap-on (flat markers supplied with holes and 2 nylon ties).

Styles AA through E (snap-around) are simply uncoiled by hand and automatically recoil around the pipe for a secure fit. Styles F, G, and H (strap-on) include nylon ties to secure the marker around pipes with diameters from 6 1/8″ to 10″+. For pipes larger than 14″ in diameter order additional nylon ties.

  • These Markers are available in formats: Coiled (snap-around) and flat with holes (strap-on).
  • For pipe diameters up to 6″, use snap-around markers (styles AA, A, B, C, D, E); these markers are simply uncoiled by hand and automatically recoil around the pipe.
  • For pipe diameters larger than 6″, use strap-on markers (styles F, G, H); these markers are installed using nylon ties (included with purchase) or stainless steel strapping.
  • Advantages of snap-around and strap-on pipe markers: No pipe preparation, 360° visibility, speed of installation, arrows included and overall better appearance.
Durability
4 to 5 years
Service Temp
-40 °F to 160 °F (-40 °C to 71 °C)
Minimum Application Temp
None
Surface Prep
None
Spec Compliance
ANSI / ASME A13.1 2020
  • Snap-Around and Strap-On Pipe Marker Sizes

Marker Size, Letter Height & Max. Characters Per Marker

The following shows the recommended pipe marker letter height and marker size based on the outside pipe diameter of the pipe to be identified. For pipes smaller than 3/4" and for valve identification, the use of a permanent legible tag is recommended.

  • Snap-Around and Strap-On Pipe Marker Sizes

ANSI / ASME Size Table

  • Size AA A B C D E F G H
    Pipe O.D. 3/8″ to 1/2″ 3/4″
    to 1″
    1-1/8″
    to 2-3/8″
    2-1/2″
    to 3-1/4″
    3-3/8″
    to 4-1/2″
    4-5/8″
    to 6″
    6-1/8″
    to 7-7/8″
    8″ to 10″ over 10″
    Marker Length 3″ 8″ 8″ 12″ 12″ 12″ 12″ 24″ 32″
    Letter Size 0.25″ 0.50″ 0.75″ 1.3″ 1.3″ 1.3″ 1.3″ 2.5″ 3.5″
    Character Limits 20 22 18 22 22 22 22 22 16

* Size selection MUST include insulation thickness / Size F ships with two 36" long ties and sizes G and H ship with two 48" long nylon ties.


Latest Revision ANSI / ASME A13.1

ANSI / ASME is the most common pipe identification standard used in the United States. The standard specifies the primary and secondary means of identifying pipe content, as well as the size, color and placement of the identification device.

1. Primary Identification

The legend (name of pipe content) and directional flow arrow remain the primary means of identifying pipe content. The size and placement of the marker and arrow has not changed. See ANSI / ASME size table and installation recommendations for details.

Legends should use arrows to indicate the direction of flow, where flow can be in both directions, arrows in both directions should be displayed. Contents should be identified by a legend with sufficient additional details such as temperature, pressure, etc. Legends should be brief, informative, pointed, and simple for greatest effectiveness.

  • Marker illustration

1.1 Additional Means of Identification ASME A13.1

ASME A13.1 incorporated the GHS pictograms into the 2015 revision and has recommended their use as part of the legend.

"The applicable GHS pictograms as illustrated in Fig.1 may be included as part of the legend. Where piping is connected to containers that are labeled in accordance with GHS requirements, a corresponding label on the piping may be provided. The corresponding label should contain at least the product name or identifier, the pictogram, the signal word, and the physical, health, and environmental hazard statements."

  • GHS Pictogram
Fig.1

2. Secondary Identification

ASME A13.1 4.2 Color: "Color should be used to identify the characteristic hazards of the contents. Color should be displayed on, or contiguous to, the piping by any physical means, but its use shall be used in combination with a legend. Color may be used in continuous, total-length coverage or in intermittent displays. Colors preceded by the word "Safety" shall meet the requirements of ANSI / NEMA Z535.1"

  • FLUID SERVICE COLOR COMBINATIONS
    Fire Quenching Fluids

    Safety Red Background / White Legend

    Toxic & Corrosive Fluids

    Safety Orange Background/ Black Legend

    Flammable & Oxidizing Fluids

    Safety YellowBackground / Black Legend

    Combustible Fluids

    Safety Brown Background /White Legend

    Potable, Cooling, Boiler feed, & other Water

    Safety Green Background/ White Legend

    Compressed Air

    Safety Blue Background / White Legend

    Defined by the User

    Safety Purple Background / White Legend

    Defined by the User

    Safety White Background / Black Legend

    Defined by the User

    Safety Gray Background / White Legend

    Defined by the User

    Safety Black Background / White Legend

Flammable Fluids
Used for fluids that, under ambient or expected operating conditions, are a vapor or procedure vapors that can be ignited and continue to burn in air. The terms thus may apply, depending on service conditions, to fluids defined for other purposes as flammable or combustible
Oxidizing Fluids
Oxidizing fluid is any gas or liquid that may, generally by providing oxygen, cause or contribute to the combustion of other material more than air does.
Fire Quenching Fluids
This classification includes water, foam and CO2 used in sprinkler systems and fire fighting piping systems.
Toxic & Corrosive Fluids
This classification includes fluids that are corrosive or toxic, or will produce corrosive or toxic substances when released.
Combustible Fluids
This classification includes fluids that can burn but are not flammable.

3. Placement

  • Marker visibility

Always position pipe labels on pipes to achieve the best visibility. Install pipe labels below or above the horizontal centerline of the pipe when pipes are located above or below the normal line of vision.

  • Pipe marker illustration
    Install pipe labels close to valves or flanges.
  • Plastic Lockout Hasp 428 C3504
    Apply pipe labels adjacent to changes in direction and/or branches.
  • Marker installation options
Install pipe labels before and after all wall, floor and ceiling penetrations.
  • Marker installation options
Install pipe labels at frequent intervals on straight pipe runs Brimar recommends 20 to 25ft.

4. Abandoned Piping

Piping that has been abandoned in place should be identified. The recommended color scheme is a safety white background with black letters. A black border should be added to the identification. When the abandoned piping is protected from corrosion by the addition of a pressurized fluid or contains residual hazardous material, the legend should indicate that.

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