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As plastic barb orifice fittings get smaller, users rapidly begin to sacrifice strength and rigidity. Smaller plastic barbs have thinner walls which often snap off with very little effort. This can be frustrating for production assembly line personnel, and costly in both time and dollar value. Many companies are, therefore, switching from plastic assemblies to metal assemblies.

Bird Precision has now introduced metal 1/16" barb fittings retrofit with precision ruby orifices offering the strength and precision design engineers need. These new miniature fittings are available as in-line barb to barb and 10-32 to barb as well as in tube inserts.
Unit of Measure

Specifications

Brands

 N/A Bird Precision

Suggested Pressures

 N/A 0.060 O.D. - Low Pressure (Under 150 psi) 0.118 O.D. - Medium Pressure (5000 psi or lower) 0.087 O.D. - High Pressure (Above 5000 psi)

Material

 N/A Brass

Physical Properties

Crystal System

 N/A Hexagonal

Chemical Formula

 N/A Aluminum Oxide (Al2O3)

Purity

 N/A 99.99 %

Cleavage

 N/A Conchoidal

Specific Gravity

 N/A 3.99/3.98

Dislocation Density

 N/A 105/104 cm²

Thermal Properties

Melting Point

 N/A 2050 ºC

Softening Point

 N/A 1800 ºC

Specific Heat at 25 Degree Celsius (ºC) Temperature

 N/A 0.18 cal/g

Thermal Conductivity at 25 Degree Celsius (ºC) Temperature

 N/A 0.1 cal/sec.c.ºC

Thermal Expansion Face Perpendicular to C Axis

 N/A 5.4 10-6/ºC

Thermal Expansion Face Equal to C Axis

 N/A 6.2 10-6/ºC

Mechanical Properties

Hardness

 N/A 9 Mohs

Knoop Face Perpendicular to C Axis

 N/A 1800

Knoop Scale Face Equal to C Axis

 N/A 2200

Modulus of Elasticity

 N/A 4.4 x 10-6 kg/cm²

Modulus of Elasticity Young E Tolerance (±)

 N/A 1 %

Modulus of Rupture at 25 Degree Celsius (ºC) Temperature

 N/A 4000 kg/cm²

Compressive Strength at 25 Degree Celsius (ºC) Temperature

 N/A 21000 kg/cm²

Ultimate Tensile Strength

 N/A 1900 kg/cm²

Chemical Resistance

 N/A Unattacked by Common Acids or Sodium Hydroxide (NaOH)

Chemical Properties

Acids and Alkalis Attack at 300 Degree Celsius (ºC) Temperature

 N/A 0

Porosity

 N/A 0

Electrical Properties

Dielectric Constant (Permittivity)

 N/A 7.5 at 10.5

Electrical Resistance at 500 Degree Celsius (ºC) Temperature

 N/A 1011 ohm/cm

Electrical Resistance at 1000 Degree Celsius (ºC) Temperature

 N/A 106 ohm/cm

Electrical Resistance at 2000 Degree Celsius (ºC) Temperature

 N/A 103 ohm/cm

Machining Method

Other Method

 N/A Drilled EDM or laser machining hole piercing methods cause:
  • Ragged edges
  • 16-32 micro inch finish
  • Burrs
  • Tool marks
  • Out of round conditions
  • Cd values vary
  • Must be checked and matched to balance flow
  • Tolerance control 0.001" difficult

Brid Method

 N/A Bird Precision's method of wire lapping and flat surface lapping results in:
  • Razor sharp edges
  • 2 micro inch finish
  • Roundness better than 0.000050"
  • Concentricity 0.003" or better
  • Controlled bore length
  • Cd very uniform
  • 1,000's matched flows with sizes from 0.0002" and up
  • Tolerances 0.0002" the norm
  • Long life without wear

Note

Note

 N/A Characteristics of the colorless synthetic sapphire, i.e. corundum single crystal

Additional Information

Additional Information

 N/A Bird's new brass 1/16" barb fittings with integral ruby orifices are available in sizes from 10 microns through 0.035 ID. Ruby orifices offering accuracy that is not attainable by plastic molding or conventional drilling methods. These brass orifice fittings are stronger than any plastic fitting currently available, making usage and replacement of integral parts easier than ever. They are also very competitively priced.

Contained within these fittings are Bird's highly repeatable and precise ruby orifices. With zero porosity, high temperature, chemical and wear resistance in ranges starting at 0.0004", these burr free orifices are next to diamond in hardness and can be used in medical control, hydraulic, pneumatic, aerospace, biotech/biomed, and many other applications.

As technology demands precision and smaller tolerances, engineers are turning to Bird Precision micro-drilled inserts, fittings and their filter components. We offer a high-value solution in nozzle, restrictor and orifice applications, all designed with Bird Precision accuracy.

Conventional drilling methods inherently sacrifice quality and dependability due to drill wobble, run out and burr generations. Bird Precision wire-lapped orifices are burr-free, extremely round and sharp-edged with a standard hole tolerance of +0.0002/-0.0000 inches.

Economically produced using mass production techniques, standard hole sizes range from 0.0004 through 0.0300 inches in a synthetic sapphire or ruby material which is almost chemically inert and extremely wear resistant.

Bird Precision orifices are acclaimed for accuracy. They exhibit highly repeatable flows from 1 cc/min.