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 44

CV

 N/A 0.0067

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 0.0173 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: 0.822 5 psig: 1.81 10 psig: 2.43 15 psig: 3.08 20 psig: 3.64 25 psig: 4.19 30 psig: 4.75 40 psig: 5.86 50 psig: 6.96 60 psig: 8.10 70 psig: 9.23 80 psig: 10.4 90 psig: 11.5 100 psig: 12.6

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

 N/A 5 In. Hg.: 1.16 10 In. Hg.: 1.51

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

 N/A 15 In. Hg.: 1.65 20 In. Hg.: 1.65 30 In. Hg.: 1.65

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

 N/A 1 psig: 1.74 5 psig: 3.83 10 psig: 5.15 15 psig: 6.53 20 psig: 7.71 25 psig: 8.88 30 psig: 10.1 40 psig: 12.4 50 psig: 14.7 60 psig: 17.2 70 psig: 19.6 80 psig: 22.0 90 psig: 24.4 100 psig: 26.7

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

 N/A 5 In. Hg.: 2.46 10 In. Hg.: 3.19

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

 N/A 15 In. Hg.: 3.50 20 In. Hg.: 3.50 30 In. Hg.: 3.50