Revised IIAR Bulletin Identification of Ammonia Piping. & System Components Marking Services, Inc. provides turnkey pipe labeling, from. 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. 20 Jan Find the most up-to-date version of BULLETIN at Engineering

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All components of the refrigeration system, e. Wrap-around, strap-on, and EZ stick-on markers for piping and buleltin. There are two requirements for these alternate schemes: The changes specified in the Revision of the guidelines are as follows: All Brimar products are manufactured in the USA.

Wafer Seals and Mailing Seals. Naturally, anhydrous ammonia pipes were considered hazardous, and got yellow labels.

Don’t Panic: Revised Guidelines for Ammonia Systems

Pipe location, from a viewer’s standpoint, will be different on every installation. Track Order Sign In. While the previous version of the Bulletin used a design that was mostly yellow, the current labels are mostly orange.

Pipe Markers Valve Tags Nameplates. Standardized abbreviations are used, and each section is printed in a specific way. Detachable arrow printed in black.

Yellow pipe labels were used to mark any pipe containing a hazardous material. Anhydrous ammonia is not the sort of stuff you want to go swimming in!

IIAR Bulletin #

The color schemes may also be applied to portions of the refrigeration system beyond machinery rooms. Orange is the New Yellow While the previous version of the Bulletin used a design that was mostly yellow, the current labels are mostly orange.

Pressure in excess of 70 psig will be considered to be high pressure and printed in black letters on a red kiar. There are two requirements for these alternate schemes:. The same system must used across the entire facility. Printed in black Physical State Section: Do the changes to the standard mean that you need to replace all of your existing labels?

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The guideline specifically allows alternative color schemes, such as the one used in the older version of the IIAR standard — or any other color scheme that works well for your facility. Directional arrows will be printed on the marker body. Considering these factors, the size of the pipe marker and lettering should be selected to provide quick and positive bulleyin.

IIAR Bulletin #114

After all, the last revision of the IIAR guideline was inand technology has changed here and there over the last 23 years! Over 10″ Legend Size: Why would the IIAR switch from yellow labels to orange ones?

That standard, created by the American National Standards Institute ANSIrecommended a color code for pipe labels that indicated the type of contents with a color. 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. See full list below.

Therefore, on-site decisions will be necessary to provide the optimum pipe marking system. Over 8″ Legend Size: Since these requirements were also part of the old standard, your facility is probably already in the safe zone. Existing schemes for identification are considered acceptable. If not, now is a great time to fix it! Since the hazards of ammonia relate to its toxicity, and not its ability to catch fire, the labels should be orange.

The new version was adopted completely by ANSI. Regardless of the piping color scheme selected, a legend or key to the meaning of the colors should be posted in a conspicuous area. This format was in place in the previous revision of the guideline, so many engineers are already familiar with it. As a whole, though, the recommended label format has kept its shape. Pressure equal to or less than 70 psig will be considered to be low pressure and printed in black on a green band.


Looking for high-quality, standards-compliant ammonia markers? In addition to the abbreviation, the use of a temperature or a pressure commonly associated with a particular line may further assist the operator. Abbreviating the names given to pipes in the ammonia refrigeration system will assist the operator in identifying and tracing the system. 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.

iair Ammonia refrigeration is a powerful technology, but these large systems are complicated and can be dangerous. Visa, Mastercard, American Express, Discover. Please enable JavaScript in your browser to experience all the custom features of our site, including the ability to make a purchase.

The reference chart, legend, or key should be made of durable material that will remain legible. They include preferred designations for several new types of equipment. Component markers will bear the name of the equipment they identify, e. What Else is New? 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.

There are no items in your cart. Bulletin states that all piping mains, headers and branches should be identified as to the physical state of the refrigerant, i.

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