Buy R12 Refrigerant Replacement
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Read more: Understanding RefrigerationContentsWhat is the AC R12 systemThe AC R12 system is a common type of refrigerant used in air conditioners. We mentioned that cars that were built before 1994 use R12 refrigerant. Chlorofluorocarbons (CFCs), which are harmful to the ozone layer, make up R12. Due to this, the Montreal Protocol banned the production and use of R12 in 1987, but it took several years for the ban to be fully implemented.
An unprofessional job could result in mistakes like overcharging the air conditioner, letting refrigerant escape, or causing a gas leak. To avoid these problems, however, you need to take your car to a professional, who might charge you at least $1,000.Read more: Everything you need to know about automobile cooling fan
You should open up the system so that the refrigerant may be drawn from the can while the blue hose is attached to the low-side port. The proper capacity, which is less than what was required with R12, can be reached by adding R134a until you reach it.
Many people believe that R12 refrigerant is the greatest invention in the history of cooling. Developed nearly 100 years ago, the chemist who created it won prestigious awards for his work. It was manufactured and sold in cylinders and cans throughout the United States and used in everything from home air conditioning units and cars to industrial chillers and nuclear facilities. But then something changed. Manufacturing of the refrigerant was banned. Cars started to use R134a. Home air conditioning units switched to R404a. Industrial chillers relied on R22, and R12 refrigerant was no longer available on store shelves.
Kettering assembled a team of chemists, led by Thomas Midgeley, Jr. , and in 1928, they developed R12 refrigerant (dichlorodifluoromethane or CCl2F2 or simply CFC-12), which became the first refrigerant that could be safely used to air condition an automobile because it was non-flammable and would not start a fire in a collision. The promise of the invention was realized right away. R12 was not only nontoxic and nonflammable. It was also remarkably stable, could be used under a number of different operating conditions, and was miscible with oil in a way that made it ideal for use with compressors and other equipment. The Society of Chemical Industry awarded Midgeley the prestigious Perkin Medal in 1937. (For even more about Midgley and some of his controversial inventions, read this.)
It is believed that R12 is the most widely used of all refrigerants in the world over time. By the 1970s, it is estimated that global production of CFCs, dominated by R-12, was over one million tons per year and generated over $500 million in sales. By 1990, the sale of CFC-related goods and services in the United States was as much as $28 billion per year.
Many CFCs were used for non-refrigerant purposes as well. Chlorofluorocarbons such as R12 were also used in medicine. Metered-dose inhalers used to treat asthma and chronic obstructive pulmonary disease relied on CFCs as propellants to help spray the medicine out of the inhaler. This helped patients breathe the medicine into their lungs. CFCs were also used in other aerosol spray products, as blowing agents in foam used for construction or to insulate refrigerated equipment. CFC-11 is commonly used as a solvent that can clean contaminated or clogged equipment. R11 effectively and safely removes particulates and sludge when flushed through these systems.
R12 refrigerant was the dominant refrigerant for decades, until 1975, when scientists discovered that CFCs, like R12 and R11, were harmful to the ozone layer. The fact that it was useful in so many ways was outweighed by its harm to the planet.
In fact, there is an entire secondary market that exists for R12 today. Refrigerant Finders offers a great refrigerant buyback program for R12, R11 and all other CFCs. We can safely and conveniently purchase your old R12, and put cash in your pocket, if it is new or virgin R12 in cylinders or cans.
We are also able to buyback your refrigerant if it is dirty refrigerant recovered from old equipment. We also offer recovery services, where we safely remove refrigerant from old industrial equipment and chillers.
R12 was easily produced and a very effective refrigerant, however, it was later discovered that R12 was an ozone-depleting gas and its production and use became very limited and controlled. This caused the price to skyrocket and companies to find another refrigerant suitable for use in cars and trucks. R134a became the refrigerant of choice after 1995 and still is used in almost every production automobile today.
To convert R12 to R134a in your system there are only a few small changes you need to make to the system. The compressor that is used in your older R12 system luckily will still work R134a refrigerant and still be just as efficient. The condenser and evaporator are simply heat exchangers so they also do not need to be changed to run a different refrigerant. One component that does need to be changed is the dryer. The dryer is in between your condenser and evaporator and helps make sure all the refrigerant has condensed into a liquid. R134a requires a different size dryer to make sure it functions properly so you will need to install a new dryer to convert R12 to R134a.
Dichlorodifluoromethane (R-12) is a colorless gas usually sold under the brand name Freon-12, and a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant. Complying with the Montreal Protocol, its manufacture was banned in developed countries (non-article 5 countries) in 1996, and in developing countries (Article 5 countries) in 2010 out of concerns about its damaging effect on the ozone layer.[5] Its only allowed usage is as a fire retardant in submarines and aircraft. It is soluble in many organic solvents. R-12 cylinders are colored white.
Charles Kettering, vice president of General Motors Research Corporation, was seeking a refrigerant replacement that would be colorless, odorless, tasteless, nontoxic, and nonflammable. He assembled a team that included Thomas Midgley, Jr., Albert Leon Henne, and Robert McNary. From 1930 to 1935, they developed dichlorodifluoromethane (CCl2F2 or R12), trichlorofluoromethane (CCl3F or R11), chlorodifluoromethane (CHClF2 or R22), trichlorotrifluoroethane (CCl2FCClF2 or R113), and dichlorotetrafluoroethane (CClF2CClF2 or R114), through Kinetic Chemicals which was a joint venture between DuPont and General Motors.[7]
R134a vs R12 refrigerant Hopefully after you have read this entire page you will have enough information to determine which type of refrigerant is best for you. If your a/c system is empty/low on refrigerant, if your system has a leak or if you need to open the system, then now is the time to decide which refrigerant you want to use. Your decision could be made based on economics, environmental concerns, or both. If you have a perfectly operating system using R12 you do not have to drop what you are doing and convert to R134a. Just leave it alone for now.
Pound for pound R134a is a more efficient refrigerant than R12, however it runs at higher pressures in some aspects and therefore requires more effective condensing. Whether R134a performs as well as R12 in any given a/c system depends upon system components and the amount of R134a used.
The problem with using an approved alternative refrigerants other than R134a is that when the system is serviced it requires certain types of fittings, labels and dedicated equipment. For instance you can evacuate FRIGC FR-12 into a refrigerant recovery bottle that has R134a in it or visa versa. This would become an expensive investment for a repair or service station to have unique dedicated equipment for every type of alternative refrigerant.
We consider the the various types alternative refrigerants that are illegal or not approved to be in two sectors: non-flammables and flammables. The non-flammables can have R22 type gas which is not compatible with most rubber hoses or they have gases that contribute to global warming. The flammables have hydrocarbons.
In vehicle air conditioning systems, the R12 and R134a are the two most common types of refrigerant gases. All the cars that are made after 1994 come with the R134a cooling system. All the cars that are made before 1994 come with the R12 cooling system. Owing to this, vehicle owners of old models who have the R12 refrigerant system tend to use a conversion chart to convert to R134a.
The R12 to R134a conversion chart is for converting the air conditioning system of the vehicle according to the operating condition and refrigerant type. It enables adjusting the charge accordingly and it is also suitable for HVAC equipment.
The R12 to R134a conversion chart serves great for old vehicle models. By applying the above formula, you will be able to have the accurate R134a charge. You can easily do it for both lbs and oz. Enter the appropriate R12 charge specification in the formula which will provide the correct R134a refrigerant charge level.
For locations within the United States: NO! Although mechanically there is NO risk of incompatibility or damage, there is legislation in place that prohibits such acts. The US EPA prohibits the mixing of ANY refrigerant within the United States. In the United States, it is illegal to mix any two or more refrigerants no matter what brand it is. Having stated that - Enviro-Safe Refrigerant IS a replacement for HFC-134a & other CFC-12 Substitutes.
For locations outside the United States: YES! At the time of this publication, Enviro-Safe is not aware of any country, with the exception of the United States, that does not allow mixing of refrigerants. Enviro-Safe does recommend, however, that you research your local, state and/or federal laws concerning refrigerant. 59ce067264
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