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
Print Back
    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

 316 SS

Orifice Material

 Synthetic Sapphire/Nylon Sleeve

Nominal Orifice Size

 36

CV

 0.0046

Maximum Operating Pressure

 100 psig

Connection A

 1/4" NPT Male

Connection B

 1/4" OD Tube Compression

Screened

 None

Dimensions

Orifice Diameter

 0.0142 in

Width Across Flats (Hex)

 9/16 in

Total Length

 1.49 in

Width Across Flats (Hex) 2

 9/16 in

Orifice Diameter Accuracy

 ±0.0003 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