O’Keefe Controls Co.
O’Keefe Controls Co.
4 Maple Drive
Monroe, CT 06468
Phone: 203.261.6711
Email: info@okeefecontrols.com • Website: www.okeefecontrols.com
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    The restrictors incorporate a precision synthetic sapphire orifice which is fitted within a main body. The sapphire orifice is a stable, accurate flow restrictor. Standard sizes range from .0012" to .0252" orifice diameter in 32 increments.
Unit of Measure

Specifications

Material

 Brass

Orifice Material

 Synthetic Sapphire

CV

 0.0046

Nominal Orifice Size

 36

Maximum Operating Pressure

 100 psig

Dimensions

Orifice Diameter

 0.0142 in

Orifice Diameter Accuracy

 ±0.0003 in

Width Across Flats (Hex)

 3/16 in

Total Length

 9/16 in

Application

N/A

  • Precision Flow Control - Gases or Liquids
  • Accurate Timing in Pneumatic or Hydraulic Circuits
  • Pressure Dividing Circuits and Pneumatic Resistance Bridges
  • Impedance Matching
  • Uni-directional Flow

Flow Data

Air Flow at Pressure - Standard Liters Per Minute (SLPM)_Sapphire

 1 psig: 0.499 5 psig: 1.20 10 psig: 1.63 15 psig: 2.09 20 psig: 2.48 25 psig: 2.84 30 psig: 3.19 40 psig: 3.90 50 psig: 4.59 60 psig: 5.29 70 psig: 5.99 80 psig: 6.69 90 psig: 7.41 100 psig: 8.12

Air Flow at Vacuum - Standard Liters Per Minute (SLPM)_Sapphire

 5 In. Hg.: 0.764 10 In. Hg.: 0.955

Air Flow at Vacuum, Choked Flow - Standard Liters Per Minute (SLPM)_Sapphire

 15 In. Hg.: 1.07 20 In. Hg.: 1.07 30 In. Hg.: 1.07

Air Flow at Pressure - Standard Cu. Ft. Per Hour (SCFH)_Sapphire

 1 psig: 1.06 5 psig: 2.53 10 psig: 3.45 15 psig: 4.43 20 psig: 5.25 25 psig: 6.02 30 psig: 6.76 40 psig: 8.26 50 psig: 9.72 60 psig: 11.2 70 psig: 12.7 80 psig: 14.2 90 psig: 15.7 100 psig: 17.2

Air Flow at Vacuum - Standard Cu. Ft. Per Hour (SCFH)_Sapphire

 5 In. Hg.: 1.62 10 In. Hg.: 2.02

Air Flow at Vacuum, Choked Flow - Standard Cu. Ft. Per Hour (SCFH)_Sapphire

 15 In. Hg.: 2.26 20 In. Hg.: 2.26 30 In. Hg.: 2.26