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.
What is flare thread?
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. Tube flaring is a type of forging operation, and is usually a cold working procedure. ... JIC fittings are typically steel or stainless steel.
What does flare mean in plumbing?
Flaring allows you to connect tubes to each other or another kind of fitting . Flared ends tend to have an approximately conical shape. The most popular flaring tool for copper tubing is the bar-type tool, which include multiple bits to accommodate different pipe or tube sizes.
What is a flare valve?
In industrial plants, flare stacks are primarily used for burning off flammable gas released by safety valves during unplanned over-pressuring of plant equipment. During plant or partial plant startups and shutdowns, they are also often used for the planned combustion of gases over relatively short periods.
Is flare the same as NPT?
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 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.
How tight should flare fittings be?
Generally, the tubing should stick up about 1⁄16 in. ... This ensures that the block grasps the tubing tightly. After tightening the screws, spin the mandrel into the tubing, tighten it by hand, and check how the flare mates with the fitting.
Can you use Teflon 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. tighten more if a leak is detected.
What are the two parts of a flared tube fitting?
A flared tube fitting consists of a sleeve and a nut , as shown in Figure 7-15. The nut fits over the sleeve and, when tightened, draws the sleeve and tubing flare tightly against a male fitting to form a seal. Tubing used with this type of fitting must be flared before installation.
What is a flare fitting used for?
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.
Can you use compression fittings on hot water heater?
Step 12: Flexible Connectors are Easier to Work With
For ease of removing the water heater for service or replacement, use compression fittings to connect the water pipes . If you are soldering copper pipes, use dielectric unions to connect the pipes to the water heater.
How much pressure can a compression fitting take?
Compression fittings are the perfect choice for high pressure applications. In combination with a high pressure tubing material like steel, large compression fittings can often be used at pressures in excess of 10,000 psig .
Do compression fittings have NPT threads?
The fittings we sell may have compression or National Pipe Thread tapered ends (NPT). Compression ends are made for a tube which has a specific outside diameter (OD). ... NPT (ends) look very different than compression (ends). NPT has no nuts or ferrules, but instead relies entirely on a thread connection .
Can I use a double flare instead of a bubble flare?
Can you use a bubble flare instead of a double flare? The simple answer is no . The line and port are completely different and will not come close to sealing. When doing brake lines, you need to determine what type of flare you need for your car.
Can NPT and NPS be used together?
Both NPT and NPS have the same thread angle , shape, and pitch (threads per inch). However, NPT threads are tapered and NPS threads are straight (parallel). ... While NPT and NPS threads will engage, they do not seal properly with each other.
