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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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.
Reversible arrows for easy placement with any flow direction. Directional arrows will be printed on the marker body. Existing schemes for identification are considered acceptable. Wrap-around, strap-on, and EZ stick-on markers for piping and components. The “self-adhesive” type of marker will be printed with one directional detachable arrows.
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.
Visa, Mastercard, American Express, Discover. 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.
In either case, the directional arrow or arrowhead will bukletin BLACK in color and proportionate in size to the marker.
Inthough, the standard was revised. They include preferred designations for several new types of equipment. The new version was adopted completely by ANSI.
IIAR Bulletin 114
Pipe Markers Valve Tags Nameplates. Pressure equal to or less than 70 psig will be considered to be low pressure and printed in black on a green band. Revised Guidelines for Ammonia Systems. Pipe iiad, from a viewer’s standpoint, will be different on every installation. 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.
Since the bullftin of ammonia relate to its toxicity, and not its ability to catch fire, the labels should be orange. Over 10″ Legend Size: The reference chart, legend, or key should be made of durable material that will remain legible. All components of the refrigeration system, e. Pressure in excess of 70 psig will be considered to be high pressure and printed in black letters on a red band.
All Brimar products are manufactured in the USA. Therefore, on-site decisions will be necessary to provide the optimum pipe marking system. After all, the last revision of the IIAR guideline was inand technology has changed here and there over the last 23 years! Bullefin addition to the abbreviation, the use of a temperature or a pressure commonly associated with a particular line may further assist the operator.
What Else is New? There are two requirements for these alternate schemes: This format was in place in the previous revision of the guideline, so many engineers are already familiar with it. Directional arrow tape may also be applied around the full circumference of the pipe. Regardless of the piping color scheme selected, a legend or key to the meaning of the colors should be posted in a conspicuous area.
Track Order Sign In. Component markers will bear the name of the equipment they identify, e. Why would the IIAR switch from yellow labels to orange ones?
Don’t Panic: Revised Guidelines for Ammonia Systems
The system in place must be described in hulletin clearly-visible posting. If not, now is a great time to fix it! There are no items in your cart.
As a whole, though, the recommended label format has kept its shape.
Pipe markers in accordance with Bulletinare designed to identify the refrigerant contained within that piping segment i. The revision contains 28 abbreviations versus 17 contained in the Guidelines. Do the changes to the standard mean that you need to replace all of your existing labels?
Detachable arrow printed in black.