Refrigeration flare nuts

Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption drinking or cooking. This item is for non-potable non-human consumption water applications only. This product does not comply with the Safe Drinking Water Act, which requires that products used in any system providing water for human consumption drinking or cooking to meet low-lead standards.

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Email Us. Length Feet 15' 5 25' 4 30' 4 50' 6 65' 4 ' 1.First off we need to clarify that very few unitary manufacturers use flares anymore. A flare uses a flared female cone formed into tubing usually copper that is pressed onto a male cone usually brass by a threaded flare nut.

There is a company called Spin that uses a flaring tool that goes on a drill. Their tool actually heats and anneals the copper. We have used it a few times with good results. Finally, make sure when your system has flares to pressure test to the rated test pressure and bubble test the joints. Then perform a vacuum to below microns and decay test. This will help ensure that you got it right. If it leaks, cut it off and remake it. Use of a crowfoot will require calculation of the required torque setting of the instrument for the required torque.

The TO also shows the required torquing pattern. The publication has been approved for public release. My understanding the flare used on a mini split is actually a 37degree and not a 45 degree. If you use a mini split kit from Diakin or CPS your torque wrench is included. Use them and your leaks will come to an end! Ra flares are 45 degree, including mini-splits. The face of the flare is also slightly bigger so there is more surface area between the flare nut and the male cone.

This is why mini-split manufacturers specify a a flaring tool. A drop of a oil or Nylog on the mating surfaces is key to keep from twisting the tubing as you torque it. Torque wrenches are also a must, if you want to do the job right the first time. Never use the flare that comes on the line set, cut it off and do it right.

Same goes for the flare nut on the line set, remove it and use the flare nut that comes with the mini-split. The other option is to nitrogen braze the line sets together.

Enjoy the Day. You must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed. Tech Tips. May 23, Bryan Orr 3 Comments.

Flared Refrigerant Line Sets

February 13, at pm. Log in to Reply. Lou says:. May 30, at pm. May 24, at am. Leave a Reply Cancel reply You must be logged in to post a comment.Remember Me? Page 1 of 2 1 2 Last Jump to page: Results 1 to 13 of Thread: Leaky Flare nuts on mini-split refrigerant line.

Thread Tools Show Printable Version. Leaky Flare nuts on mini-split refrigerant line. I was wandering why mini splits use flare connections. I find them to be less reliable than soldered connections. Has anyone ever soldered the entire flare connection and nut assembly together? Originally Posted by heater I've seen all three. Flare, QC and solder. I prefer solder, followed by flare. A well made flare will not leak, even after years of service.

Even so, why any manufacturer would use flares today is beyond me, but I'm not a manufacturer, I'm just a dumb tech. I would not solder the entire connection together, even if it is possible. Think about what happens if anyone needs to disconnect it later. They will swear at you. As I said, flares can be a very reliable way to join lines. I've seen flare connections over 20 years old, in service daily that didn't leak. Are you making the flare right?

Deburr the tube?

refrigeration flare nuts

Oil the fitting? Did you overtorque and crack a flarenut?

refrigeration flare nuts

If you are insistent upon soldering something, cut the connectors away and solder straight pipe in.The Wall. Click here to Find a Contractor in your area. Here are the website rules, as well as some tips for using this forum. If you've found help here, check back in to let us know how everything worked out. It's a great way to thank those who helped you. Need to contact us? June Long or Short Flarenuts What is the reason to have long and short flarenuts? Any input is greatly appreciated!!!!!!!!

Al Corelli Member Posts: I was taught that it was short for oil lines and long for LP gas or wherever there may be a need for more support at the fitting. Michal Member Posts: I was aware that long flare huts are for oil and short for lp as well. I like the long flare nuts when I can get em.

A flare is a flare. Doug Wagoner Member Posts: There is no space for frost to build between the nut and the pipe and cause damage. I see U. Both long and short nuts are approved for "Flammable Liquids". Forged nuts are approved for "Gasses" and "Refrigeration". Cosmo Valavanis Dependable P.For centuries, people have known that lead is bad for you, and that lead poisoning can be fatal.

However, it hasn't been until the advent of recent technologies that we've understood exactly how and why lead is bad for the human body. Due to its corrosion-resistance and ease of working with it, lead was used in ancient times for water pipes, cooking pots, eating dishes and utensils, and more. Even with the transition from lead pipes to those made of cast iron, copper, and galvanized steel, many times the brass fittings or solder used to join pipes contained significant amounts of lead.

If you've ever taken a chemisty class, you're probably familiar with the concept that water is a solvent. This means that it will absorb things like minerals, metals, and chemicals that it comes into contact with over a period of time.

Water sitting in your pipes will gradually leach lead from the joints or fittings. In addition, as the plumbing system in a building ages, the pipes, fittings, and joints will corrode - again leaching lead into the water supply. When you drink that water, you're ingesting lead. The human body is amazing at destroying or getting rid of many harmful substances, from certain minerals and indigestable fibers to bacteria and viruses.

However, these biological mechanisms only work if the body recognizes the invader. Guess what lead is really good at? Mimicking helpful substances that your body needs, like calcium, zinc, and iron.

How to make air conditioner copper pipe flare

Thus, lead poisoning isn't so much a case of having too much lead, but of having that lead bind to and interact with the enzymes your body utilizes for proper functioning - blocking those good minerals and metals from attaching to the enzyme and doing what they're supposed to to keep your body healthy.

Thus, no safe level of lead in the body has been identified. Babies and children are the most at risk for lead poisoning primarily because their growing bodies are so much faster at absorbing and processing any lead they are exposed to.

Long or Short Flarenuts

When the lead takes the place of the good nutrients a child's body needs to continue growing, bad things happen. Even low levels of lead in the blood of children can result in behavior and learning problems, abdominal pain and vomiting, slowed growth and brain development, nervous system damage, hearing problems, anemia, and in rare cases can cause seizures, coma, and even death.

As of August 6,the Federal Safe Drinking Water Act the Act prohibits any person from introducing into commerce, products that are not "lead free" as defined by the Act. The U. The Act applies to residential, commercial and institutional installations, as well as new and retrofit applications. California Proposition 65, "The Safe Drinking Water and Toxic Enforcement Act of " is the most stringent law that we know of of its kind at either the state or federal level.

The federal standard for lead in drinking water is 11 ppb parts per billion while prop 65 Calif mandates a level of.

1/2 in. Nom Cold Expansion PEX Barb x 3/8 in. O.D. Comp Angle Stop

The Center for Environmental Health recommends that consumers run water for 10 seconds before filling a glass to remove water with the highest lead levels from pre "Act" faucets. What this means for you is the lead content in faucet spouts and fittings will not be legally allowed to have more than one-fourth of one percent of lead, so water traveling through compliant faucets will be essentially "lead free".

CA AB defines lead as less than 0. This bill changes the meaning of term "lead free" in the Health and Safety Code from eight percent lead for pipes or pipe fittings, and four percent lead for plumbing fittings and fixtures to a weighted average of not more than 0.

However, it is important to note that while products meeting the requirements of the law are defined as being "lead free", they may still contain trace amounts of lead. Don't use compression fittings on gas connections at all as most codes do not allow it nor do we recommend it.ARI, as a manufacturer's trade association, uses its best efforts to develop guidelines, employing state-of-the-art and accepted industry practices.

However, ARI does not certify or guarantee safety of any products, components or systems designed, tested, rated, installed or operated in accordance with these guidelines or that any tests conducted under its standards will be non-hazardous or free from risk. Dimensions and Tolerances.

Fitting Quality. Forming Tube Flares. Remake and Repair. Flare Nut Torque. References - Normative. References - Informative. This guideline provides manufacturers, installers and servicing personnel with guidelines for acceptable practices for forming, installing, handling and servicing of fittings and copper tubing.

Materials used in the manufacture of refrigeration flare fittings should conform to the latest edition of SAE J, unless otherwise specified by the purchaser. This guideline is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users.

C soft annealed temper phosphorized, high residual phosphorousany other tube should be soft annealed and conform to ASTM Standard B Only tubing designated as "Refrigeration Service" should be used. This document is subject to review and amendment as technology advances. Section 5. Dimensions and Tolerances Section 2. Scope 2. This guideline applies only to 45E flare fittings and copper refrigeration tubes; and only to refrigeration and air conditioning systems using halogenated hydrocarbon refrigerants.

Topics addressed are: Factory workmanship, handling and storage, forming tube flares, joint assembly, remake, repair, and leak testing of assemblies. Double and single flared tubes and metal seal caps with copper gaskets are included within the scope of this guideline.

Section 3. Definitions 3. Refrigeration fittings should dimensionally conform to SAE Standard J, unless otherwise specified.Oil prices steadily deteriorated for about six years. They finally collapsed when demand declined and supply caught up. Oil speculators could spike the price higher if they panic about future supply shortages.

That's what happened to gas prices in 2008. Traders were afraid that China's demand for oil would overtake supply. These fears were grossly unfounded, as the world soon plunged into recession and demand for oil dropped. Keep in mind that any perceived shortages can cause traders to panic and prices to spike.

Perceived shortages could be caused by hurricanes, the threat of war in oil-exporting areas or refinery shutdowns. But prices tend to moderate in the long term.

refrigeration flare nuts

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