A 37-flare fitting is an excellent pressure fitting having a broad
selection of styles & shapes and is very extensively used all over
the globe. Main features that call for its use are its simplicity,
compactness in design, ease of assembly, high reliability, easy
availability & global acceptance. These flare fittings can also be
used as hose adapters.
The basic design is simple, which uses a flared tube end to hold &
seal the medium under pressure. Main construction consists of three
pieces: the body, sleeve & nut. The end of the tube is flared to 74
degrees included angle and held in between the body nose and the sleeve
with a nut on top of them, thus resulting in a very effective seal
between the fittings and the flared tube.
Straight flare fitting are normally manufactured from cold drawn bar
stocks and all angular fittings from forgings. This kind of forged
construction results in very close grain structure and also gives high
reliability to the fitting eliminating all possibilities of leakage and
can withstand high pressures with numerous makes and remakes even under
severe operating conditions.
Also these fittings can be easily used in both metric and inch
tubing's. One single 37 degree fitting body can take both metric and
inch tubes just by change in sleeves. The nuts used are the same, so the
cost of the component comes down drastically and also the inventory.