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

 N/A Brass

Orifice Material

 N/A Sapphire/Nylon Sleeve

Nominal Orifice Size

 N/A 16

CV

 N/A 0.00094

Maximum Operating Pressure

 N/A 100 psig

Connection A

 N/A 1/8" NPT Male

Connection B

 N/A 1/8" NPT Male

Screened

 N/A Screened

Dimensions

Orifice Diameter

 N/A 0.0063 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 7/16 in

Total Length

 N/A 0.970 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

 N/A 1 psig: 0.106 5 psig: 0.256 10 psig: 0.357 15 psig: 0.443 20 psig: 0.525 25 psig: 0.605 30 psig: 0.685 40 psig: 0.845 50 psig: 1.00 60 psig: 1.16 70 psig: 1.32 80 psig: 1.48 90 psig: 1.64 100 psig: 1.80

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

 N/A 5 In. Hg.: 0.156 10 In. Hg.: 0.200

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

 N/A 15 In. Hg.: 0.214 20 In. Hg.: 0.214 30 In. Hg.: 0.214

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

 N/A 1 psig: 0.225 5 psig: 0.542 10 psig: 0.756 15 psig: 0.939 20 psig: 1.11 25 psig: 1.28 30 psig: 1.45 40 psig: 1.79 50 psig: 2.13 60 psig: 2.46 70 psig: 2.80 80 psig: 3.13 90 psig: 3.47 100 psig: 3.81

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

 N/A 5 In. Hg.: 0.331 10 In. Hg.: 0.424

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

 N/A 15 In. Hg.: 0.453 20 In. Hg.: 0.453 30 In. Hg.: 0.453