IIAR Ammonia Refrigeration Piping Handbook. Provides is a tutorial and reference book that represents the collective efforts of the most knowledgeable specialists in the ammonia refrigeration industry.
Your membershipadds another voice toIIAR, strengtheningour position as anadvocate on ammoniarefrigeration issues.IIAR is recognizedthroughout industryand governmentaround the world asthe authoritativesource of informationabout ammoniarefrigeration. As youradvocate, IIAR worksproactively to promotemembers’ interestsbefore regulatorybodies, including EPA,OSHA, and variouscode-writingauthorities in theUnited States. Theseefforts are alsoexpanding to otherparts of the world.
Iiar ammonia refrigeration piping handbook
Your membership andcommittee serviceenhance the qualityof ammoniarefrigerationpublications producedby IIAR. Thesetechnical and guidancedocuments set thestandard, endorsedby regulators andindustry alike. As amember, you areinvited to serve oncommittees and taskforces that producethese authoritativeindustry consensusdocuments.
IIAR published Appendix A: Guidelines for Preparation of Ammonia Refrigeration Diagrams to the Ammonia Refrigeration Piping Handbook in 2012. This appendix outlines the best practices for preparing an ammonia refrigeration P&ID. Page A-6 includes a helpful list of diagram format recommendations. I have paraphrased the list below:
Bulletin #114 2014 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.
Abbreviating the names given to pipes in the ammonia refrigeration system will assist the operator in identifying and tracing the system. To further assist the operator make sure the physical state (LIQUID or VAPOR) as well as the pressure level (HIGH or LOW) are also identified in the marker. i.e., Adding -10 to a particular recirculated suction line and 0 to another one, would serve to differentiate between 2 Low Temp Recirculated Suction (LTRS) lines.
Applying abbreviations of the names commonly given to components or equipment in an ammonia refrigeration system will assist the operator in identifying components and tracing system piping. In addition to the abbreviation, the use of a temperature or a pressure commonly associated with a particular line may further assist the operator.
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. 2ff7e9595c
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