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

CV

 N/A 0.00061

Nominal Orifice Size

 N/A 13

Maximum Operating Pressure

 N/A 100 psig

Dimensions

Orifice Diameter

 N/A 0.0051 in

Orifice Diameter Accuracy

 N/A ±0.0003 in

Width Across Flats (Hex)

 N/A 3/16 in

Total Length

 N/A 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

 N/A 1 psig: 0.068 5 psig: 0.159 10 psig: 0.228 15 psig: 0.285 20 psig: 0.337 25 psig: 0.389 30 psig: 0.440 40 psig: 0.543 50 psig: 0.652 60 psig: 0.751 70 psig: 0.855 80 psig: 0.959 90 psig: 1.06 100 psig: 1.17

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

 N/A 5 In. Hg.: 0.100 10 In. Hg.: 0.128

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

 N/A 15 In. Hg.: 0.138 20 In. Hg.: 0.138 30 In. Hg.: 0.138

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

 N/A 1 psig: 0.144 5 psig: 0.337 10 psig: 0.483 15 psig: 0.604 20 psig: 0.714 25 psig: 0.824 30 psig: 0.932 40 psig: 1.15 50 psig: 1.38 60 psig: 1.59 70 psig: 1.81 80 psig: 2.03 90 psig: 2.25 100 psig: 2.47

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

 N/A 5 In. Hg.: 0.212 10 In. Hg.: 0.271

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

 N/A 15 In. Hg.: 0.292 20 In. Hg.: 0.292 30 In. Hg.: 0.292