Ammonia refrigerant number

Ammonia Gas or Refrigerant R717. Its molecular weight is and boiling point is -degree F (-degree C). The Linde Group offers high quality refrigerant ammonia. Our refrigerant grade ammonia is 99. Valve number xxxx (hand valve).

This will permit liquid ammonia flow to cool compressor oil injection.

Open liquid return from TT and TT hand valves. Details of the supplier of the safety data sheet Company name: National Refrigerants Ltd. Laboratory use of anhydrous ammonia (gas or liquid) The gas is flammable ( autoignition temperature: 6°C) and can form explosive mixtures with air (16–). In a DX halocarbon unit, oil is continuously returned to the compressor. Refrigerant grade anhydrous ammonia is a clear, colorless liquid or gas, free from visible impurities.

Water cannot have a content above parts per million (ppm) and oil cannot have a content above ppm. The prefix is composed of the letter R (for refrigerant ). Examples: R2 R134a, R600a, R7Sometimes, the letter C is used in the prefix to denote carbon, preceded by B, C or F (or a combination of these letters in the same order) to indicate the presence of bromine, chlorine or fluorine. This is because the natural refrigerant has a number advantages.

Kessler, Senior Process Safety Engineer. The ammonia is the chemical that is used to absorb the heat from one area, and bring it to another area to dissipate. Note: The Refrigeration System Classification section of the International Mechanical Code requires a value of for the red quadrant (flammability hazard) for indoor ammonia refrigeration equipment. Pure ammonia (also known as anhydrous ammonia) boils at -28ºF.

It must be under pressure to maintain a liquid state. An ammonia release incident is an unexpected and uncontrolled release of refrigerant from a system. Depending on exposure, health hazards can range from temporary mild discomfort to irreversible, serious damage to exposed tissues.

This manual summarizes the requirements of environmental and safety laws for anhydrous ammonia refrigeration system operators. A list of the federal laws and regulations related to process safety, accident prevention, emergency planning, and release reporting may be found in Appendix C. In refrigeration systems, ammonia is liquefied under pressure. Any liquid ammonia released to the atmosphere will aerosolize producing a mixture of liquid and vapor at a temperature of –28ºF. The released ammonia rapidly absorbs moisture in the air and forms a dense, visible white cloud of ammonium hydroxide.

Recommended use and restrictions on use No additional information available 1. Supplier JR Simplot Company P. Ice rink chillers, which use ammonia with a flooded chiller, have one large refrigerant circuit. If the unit has a leak, the entire refrigerant charge can be lost in a short amount of time. In this age of HFCs such as R-134a, the ammonia industry is taking a more aggressive stance.

DESCRIPTION: For the purposes of this car ammonia refers to solutions that are ammonia or greater, ammonia anhydrous, and ammonia anhydrous liquifie unless otherwise specified.

Exposure to ammonia in sufficient quantities can be fatal. Vega Wordpress Theme by LyraThemes. These include R-2 R-2 R-11 and R-115. Those that are insoluble in oil in the operating temperature range.

Of the refrigerants listed in the last two groups, only ammonia and carbon dioxide are lighter than oil. In this system, however, there is no primary COcompressor. If ammonia gas escapes from a refrigeration system or a storage container, it tends to collect in high areas or ceilings.

It is also much lighter than air. However, it has a number of drawbacks that have so far prevented the use of ammonia for commercial applications, e. All ammonia refrigeration compressors will be inspected for alteration, modification or physical repair that might affect the integrity of the compressor casing. As a refrigerant , ammonia offers three distinct advantages over other commonly used industrial refrigerants. First, ammonia is environmentally compatible. It does not deplete the ozone layer and does not contribute to global warming.

Secon ammonia has superior thermodynamic qualities, as result ammonia refrigeration systems use less electricity. Anhydrous ammonia is widely used as a refrigerant in compressor based refrigeration systems in the food and beverage industry. Unfortunately, the units occasionally leaked and caused several deaths, which prompted the refrigeration industry to put forth a concerted effort to find a safer refrigerant gas.

Industrial refrigeration systems have used ammonia for over 1years, so it is strange to hear ammonia described as an “alternative” refrigerant. Refrigerant Designation R- Number The designation and safety classification of primary refrigerants is according to American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 34. North America rely heavily on ammonia refrigerant. The presence of ammonia in the secondary coolant (brine solution) is an indication that an internal leak may have occurred in the heat exchanger (e.g. chiller) from the ammonia refrigerant side to the secondary coolant (brine solution) side of the heat exchanger.

WATER CONTAMINATION IN AMMONIA REFRIGERATION SYSTEMS I. PREFACE Water contamination of the ammonia refrigerant is common in many refrigerating systems. The solubility characteristics of ammonia in water allows an aqueous ammonia solution to be formed which replaces the anhydrous ammonia refrigerant. This valves have an history for its durability and life of more than decades.

Figure B-does the same for booster applications. History How common is ammonia refrigeration ? Many years ago, the food and beverage industry embraced ammonia refrigeration. The economic advantages alone made it the refrigerant of choice for cold storage facilities and food processing facilities as well as the dairy and meatpacking industries. The use in installations and transport of this product is subject to a certain number of safety requirements and regulations.

The refrigerant ammonia (NH 3) is the definitive operating fluid for industrial use. Throughout its period of use as a refrigerant , NH has proven to be ideally suited to this purpose. Large-scale refrigeration plants, e. CalARP or 10pounds for Federal RMP.