References >> IIAR Bulletin No. Guidelines for Identification of Ammonia Refrigeration Piping and System Components. Most of the other changes to IIAR Bulletin No. are fairly minor, fitting into the existing framework. They include preferred designations for several new types. Find the most up-to-date version of BULLETIN at Engineering

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The revision contains 28 abbreviations versus 17 contained in the Guidelines. Since the hazards of ammonia relate to bukletin toxicity, and not its ability to catch fire, the labels should be orange.

Since these requirements were also part of the old standard, your facility is probably already in the safe zone.

There are two requirements for these alternate schemes:. 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. The changes specified in the Revision of the guidelines are as follows: See full list below. Existing schemes for identification are considered acceptable.

That standard, created bullehin the American National Standards Institute ANSIrecommended a color code for pipe labels that indicated the type of contents with a color. Wrap-around, strap-on, and EZ stick-on markers for piping and components. 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.

As a whole, though, the recommended label format has kept its shape. Inthough, the standard was revised. Orange is the New Yellow While the previous version of the Bulletin used a design that was mostly yellow, the current labels are iiaf orange.

Don’t Panic: Revised Guidelines for Ammonia Systems

Do the changes to the standard mean that you need to replace all of your existing labels? If not, now is a great time to fix it! In addition, component markers will be provided with a pressure level designation. The color schemes may also be applied to portions of the refrigeration system beyond nulletin rooms. 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.

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Pressure in excess of 70 psig will be considered to be high pressure and printed in black letters on a red band. What Else is New? Yellow pipe labels were used to mark any pipe containing a hazardous material. This format was in place iair the previous revision of the guideline, so many engineers are already familiar with it.

Reversible arrows for easy placement with any flow direction. The “self-adhesive” type of marker will be printed with one directional detachable arrows. The new version was adopted completely by ANSI.

IIAR Bulletin #

Regardless of the piping color scheme selected, a legend or key to the meaning of the colors should be posted in a conspicuous area. Looking for high-quality, standards-compliant ammonia markers?

Printed in black Physical State Section: Wafer Seals and Mailing Seals. Naturally, anhydrous bu,letin pipes were considered hazardous, and got yellow labels.

Why would the IIAR switch from yellow labels to orange ones? Standardized abbreviations are used, and each section is printed in a specific way. All components of the refrigeration system, e. The reference chart, legend, or key should be made of durable material that will remain legible.

Don’t Panic: Revised Guidelines for Ammonia Systems

Applying abbreviations of the names commonly iixr to components or equipment in an ammonia refrigeration system will assist the operator in identifying components and tracing system piping.

Directional arrows will be printed on the marker body. Therefore, on-site decisions will be necessary to provide the optimum pipe marking system. All Brimar products are manufactured in the USA. There are no items in your cart. Abbreviating the names given to pipes in the ammonia refrigeration system will assist the operator in identifying and tracing the system.

Pipe location, from a viewer’s standpoint, will be different on every installation. Pipe Markers Valve Tags Nameplates.

Detachable arrow printed in black. Revised Guidelines for Ammonia Systems. Bulletin states that all piping mains, headers and branches should be identified as to the physical state of the refrigerant, i. They include iia designations for several new types of equipment. Over 8″ Legend Size: Please enable JavaScript in your browser to experience all the custom features of our site, including the ability to make a purchase.

In addition to the abbreviation, the use of a temperature or a pressure commonly associated with a particular line may further assist the operator. In either case, the directional arrow or arrowhead will be BLACK in color and proportionate in size to the marker.

IIAR Bulletin #114

bulletiin Anhydrous ammonia is not the sort of stuff you want to go swimming in! After all, the last revision of the IIAR guideline was inand technology has changed here and there over the last 23 years! Component markers will bear the name of the equipment they identify, e. The same system must used across the entire facility. View Our Full Product Index.

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