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Flared fittings are also a good option for use with heavy machinery, and industrial and construction equipment. They are the fitting is most commonly used to connect tube or hose in high-pressure and high-temperature applications. The flare fitting is commonly used world-wide because it is a simple construction.
What is better flare or compression fittings?
Generally speaking, compression outlets are used for water and compressed air lines, where slight leakage isn’t going to cause too much of a problem. Flared outlets are used for gas and high-pressure lines, where even a little leakage can cause major problems if left unattended.
What is the difference between NPT and flare?
NPT or IPT pipe threads are tapered, Compression Fitting Threads are Parallel. On the other hand compression fittings and flare fittings use threads that are cut in parallel, without taper.
What are flare type fittings?
Flare fittings are a type of compression fitting used with metal tubing, usually soft steel, ductile (soft) copper and aluminum, though other materials are also used. SAE fittings are typically made from brass. SAE and AN/JIC connections are incompatible due to the different flare angle.
Can you over tighten a flare fitting?
Fourth, don’t over-tighten the flare fitting, as this can cause leaks. Daikin offers preset flare torque wrenches that will allow you to properly tighten the flare fitting without over-tightening them. Always use a backup wrench when tightening any flare fitting.
Do flare fittings need Teflon tape?
Just what got tape applied? The threads in a flare fitting are NOT tapered and do not need to be sealed. The seal is between the flared end of the pipe/tube and the tapered face of the other side of the fitting. All the threaded collar does is supply force to create a seal between the opposite tapers of the two ends.
What is a flare thread?
Flare fittings A flare fitting has a tapered end that fits into a flared piece of tubing and is secured in place with a sleeve and flare fitting (threaded nut) to produce a pressure-resistant, leak-tight seal.
ARE AN fittings the same as flare fittings?
Each AN size also uses its own standard thread size. AN fittings are a flare fitting, using 37° flared tubing to form a metal-to-metal seal. They are similar to other 37° flared fittings, such as JIC, which is their industrial variant.
What thread size is a 6AN fitting?
The Good News Male Thread Size AN Size* Equivalent Tube Size (Nominal OD) 9/16-18 6AN 3/8″ 3/4-16 8AN 1/2″ 7/8-14 10AN 5/8″ 1 1/16-12 12AN 3/4″.
Can flare fittings be reused?
Though industry generally accepts that JIC 37° flare fittings are reusable, they may not always be reliable when reused. The cone and flare seat against one another to create a complete mechanical seal between the male and female fitting.
Why is a flare connection preferred to a solder connection?
What actually seals the connection in a flare connection? Why is a flare connection sometimes preferred to a solder connection? The primary advantage of flare connections is that they form a relatively large contact area, making a reliable seal that’s resistant to damage from vibration.
Can flare fittings be used for water?
Generally, compression fittings are used for water and flare fittings are used for air or gas. A leak-free connection depends largely upon proper installation and tightening techniques more than anything.
Do you put gas tape on flare fittings?
Do not use Teflon ® tape or pipe sealant on any flare ends because you will not obtain a leak-free seal. Keep flare end of fitting free of grease, oil and thread sealant. Use a wrench only on the hex surfaces of the fittings.
Why do flare fittings leak?
Bad flare, burrs on the pipe, wrong size flare, can all cause a flare fitting to leak. The most common reason they leak is because of us overtightening them. I once had a tech tighten one to the point that it blow off during pressure testing. If you don’t deburr, the flare may not seat properly.
Is inverted flare the same as double flare?
The first is the inverted double flare, used by most domestic production cars and trucks. … It uses a 45* double flare to seal, which has tubing that is folded over into itself before flaring outward. The double flare is used for installations that require repeated tightening/untightening.
Is it OK to use Teflon tape on gas fittings?
Teflon tape for gas fittings, also known as gas-rated Teflon tape, is yellow in color and clearly states it is for gas lines and connections. The tape works on all gas line types, including butane, propane and natural gas lines.
Is SAE same as flare fitting?
JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. SAE 45-degree flare fittings are similar in appearance, but are not interchangeable, though dash sizes 2, 3, 4, 5, 8, 10, 14, and 16 share the same thread size.
Is JIC and flare the same?
AN and JIC Fittings Interchangeability AN 37° flare and industrial 37° flare fittings function identically. In many cases, they appear to be functionally interchangeable, but they are not.
What is a 45 degree flare used for?
Brass SAE 45° Flare Fittings, & 37° Flare – 900 Brass SAE 45° fittings are designed for use on low pressure copper, brass, aluminum or steel tubing. They are most commonly used for fuel equipment, plumbing, gases, refrigeration and vacuum lines.
What is 16AN?
16AN. 1″ 0.88″ 0.84″ * Note that these are the same as SAE O-Ring Port sizes, but O-Ring Port size numbers are normally called out as dash numbers (-4, -6, etc).
What is a 1/8 NPT fitting?
Straight Head Angle, 1/8 NPT Steel Button-Head Grease Fitting. Button-head grease fittings are flat head fittings engineered for rugged applications where high volume lubrication is required. They are used for quick coupler engagement and removal in automotive, construction and industrial machinery applications.
