For 37° flare the tube really should sit over the nose from the fitting, and for twenty-four° flareless the tube needs to sit Within the cone of your fitting.
ORFS fittings are proof against injury from above-assembly and can be torqued nearly 200% of the correct assembly torque without having harm to the fitting or the sealing surface area.
one. A slight indentation around the conclude in the tube which signifies the tube was completely inserted in the course of installation.
24° flareless fittings are supplied in inch and metric variations, the SAE J514 version mates with inch tube, and the DIN 3852 version mates with metric tube. Both equally fitting variations require a metal-to-metal seal, wherever the Call among a ferrule/bite ring and the two the fitting overall body and the tube achieve the seal.
A visible steel lip will likely have been raised seventy five% to a hundred% of the thickness of the sleeves direct biting edge all the way around the tube. (See illustration previously mentioned.)
Like all metallic-to-metallic tube fitting units, the SAE flareless is limited in the amount of disassemblies and reassemblies the tubing can endure given that the ferrule bites further and further into your tubing wall with Just about every reassembly.
The resulting spring-action joint offers a leak evidence seal and resistance to vibration. Flareless fittings tend not to require a flaring operation and are employed on medium to hefty walled tubing.
The ease of manufacture of Triple Fitting supplied extra advantage that resulted in quick acceptance of it in various industrial and military purposes. The Triple Fitting was a patented 3-piece layout much like existing Parker Triple-Lok 37° flare fitting, apart from it experienced 30° flare angle instead of the 37°. This fitting style and design was the forerunner of the current AN and SAE 37° flare fittings.
Flareless nuts have a gray look as a result of molly coating exercise served to rise the regimen of the nut. All F sequence Flareless fittings are developed from 316 chrome steel.
Our valve organization has long been dedicated to offering typical engineered and fabricated products which includes tubing valves and fittings to meet the quickly escalating calls for on the field today.
This SAE Aerospace Normal (AS) establishes the requirements for twenty-four° cone flareless fluid link fittings and nuts, internally or externally swaged, preset, or welded sleeves to be used in aircraft fluid systems at nominal running pressures around and including 3000 psi.
All flareless fittings needs to be tightened a little bit more upon Each and every remake. SAE hydraulic flareless fittings are suitable for fifteen remakes. Reusability of sections is proscribed in that a brand new ferrule is required to re-tube.
Take note that during the SAE flareless fitting, the bite is just as helpful with a reliable bar as it really is over the medium to weighty wall tubing for which it was designed. Compare this to light obligation instrumentation fittings (a few ferrule) which count on click here mechanical swaging on the tube for Keeping electrical power. In these fittings, given that the wall thickness increases, fewer swaging action is possible producing such fittings unsuitable for major wall tubing and significant pressures.
SSP SAE flareless or “Chunk style† tube fitting confirmed style and design has long been made use of around the globe for over sixty several years in many apps inside the air, on ground, and at sea.