SAE 45° Flare

  • Typical Application
    LP and natural gas, flammable liquids, instrumentation, refrigeration, power steering, hydraulic and pneumatic systems.
  • Working Pressure Ranges
    Temperature and type of tubing used are important factors. However, the following table is a good guide for proper selection. Temperature 73°F with copper tubing:
  • PSI
    Tube O.D. (in.)
    Tube Wall (in.)
    2800
    1/8
    .030
    1900
    3/16
    .030
    1400
    1/4
    .030
    1200
    5/16
    .032
    1000
    3/8
    .032
    750
    1/2
    .032
    650
    5/8
    .035
    550
    3/4
    .035
    450
    7/8
    .035


  • Vibration
    Good resistance - use long nut when greater vibration resistance is required.
  • Temperature Range
    -65°F to +250°F (-53°C to +121°C) range at maximum operating pressures.
  • Material
    CA360 Brass for Barstock fittings. CA377 Brass for forged fittings.
  • Used With
    Copper, brass, aluminum and steel hydraulic tubing that can be flared.
  • Tolerance
    +/- .03 on all dimensions. Dimension data can change without notice. Please contact us when dimensions are critical.
  • Conformance
    Meets specifications and standards of ASA, ASME, SAE and MS (Military Standards).
Assembly Instructions
  1. Cut tubing to desired length. Make sure all burrs are removed and ends are cut square.
  2. Slide nut on tube. Threaded end of nut must face out.
  3. Flare end of tube with a 45° flaring tool.
    a-Measure flare diameter.
    b-Examine flare for excessive thin out.
  4. Lubricate threads and assemble to fitting body. Nut should be turned hand tight.
  5. Tighten assembly with wrench until a solid feeling is encountered. From that point, apply a one-sixth turn.

    Note: Do not over-torque as it may damage the
    fitting or split the tubing at the flare.