Hydraulics Fittings : 37 Degree Flare Fittings
J. J. 37 Degree Flare Fittings is manufactured as per SAE J514 / ISO 8434 - 2 for ease of interchangeability. It consists of three parts Body, Sleeve, and Nut and is available for different pressure rating ranging from 70Bar to 690Bar.
Technical Specifications
| Type | 37° Flare Fittings as per SAE J514 / ISO 8434-2 |
|---|---|
| Available Sizes |
6 mm to 38 mm 1/8" OD to 2" OD |
| Pressure Rating |
70 Bar to 690 Bar
Depending on fitting type and size. |
| Material |
Carbon Steel Stainless Steel Brass (From Extruded Bar or Forging) |
| Surface Treatment |
Carbon Steel
|
THEORY OF OPERATION
J. J. 37° Flare Fittings are composed of three precision components:
Tightening of the nut clamps the tube flare between the body nose (seat) producing a leak tight connection. This clamping on the 37 Degree taper provides a measure of elasticity to the joint helping it to resist loosening under vibration. The clamping force results in a small radical load that tends to deform the fitting nose radially. The resistance of the nose to elastic deformation provides a constant preload (similar to a lock washer) keeping it tight. The clamping force provided by the nut resists the opposing force of the fluid under pressure. The joint remains leak tight as long as the clamping force is higher than the opposing pressure load. Properly assembled Flare Fittings with appropriate tube will seal consistently under pressure until tube bursts.
Assembly Process
Before Assembly
After Assembly
RECOMMENDATION
Seamless and welded tube fully annealed is recommended for ease of flaring and bebding
37 Degree Flare Fittings
