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 Synthetic Sapphire/Nylon Sleeve

Nominal Orifice Size

 N/A 15

CV

 N/A 0.00084

Maximum Operating Pressure

 N/A 100 psig

Connection A

 N/A 1/4" NPT Male

Connection B

 N/A 1/4" NPT Male

Screened

 N/A None

Dimensions

Orifice Diameter

 N/A 0.0059 in

Orifice Diameter Accuracy

 N/A ±0.0003 in

Width Across Flats (Hex)

 N/A 9/16 in

Total Length

 N/A 1.38 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: 0.095 5 psig: 0.223 10 psig: 0.308 15 psig: 0.386 20 psig: 0.457 25 psig: 0.526 30 psig: 0.595 40 psig: 0.734 50 psig: 0.872 60 psig: 1.01 70 psig: 1.15 80 psig: 1.28 90 psig: 1.42 100 psig: 1.56

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

 N/A 5 In. Hg.: 0.137 10 In. Hg.: 0.175

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

 N/A 15 In. Hg.: 0.188 20 In. Hg.: 0.188 30 In. Hg.: 0.188

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

 N/A 1 psig: 0.201 5 psig: 0.471 10 psig: 0.653 15 psig: 0.818 20 psig: 0.968 25 psig: 1.11 30 psig: 1.26 40 psig: 1.56 50 psig: 1.85 60 psig: 2.14 70 psig: 2.43 80 psig: 2.72 90 psig: 3.01 100 psig: 3.30

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

 N/A 5 In. Hg.: 0.290 10 In. Hg.: 0.371

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

 N/A 15 In. Hg.: 0.398 20 In. Hg.: 0.398 30 In. Hg.: 0.398