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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    Precision orifice assemblies that adapt to common fittings used in process instruments and hydraulic systems are shown.
Unit of Measure

Specifications

Material

 Brass

Nominal Orifice Size

 60

CV

 0.081

Maximum Operating Pressure

 2000 psig

Taper

 45 º

Connection A

 1/8" NPT Male

Connection B

 SAE 45 DEG #4 7/16"-20 Male

Screened

 Screened

Dimensions

Orifice Diameter

 0.06 in

Orifice Diameter Accuracy

 ±0.0005 in

Width Across Flats (Hex)

 7/16 in

Total Length

 1.04 in

Application

N/A

    Type K4 is a 1/4" OD Tube and is suitable for use with a wide variety of compression fittings.Type K2 is for 1/8" OD Tube fittings.Types R4 and RG4 are suitable for use with face seal fittings. Types BFS and CFJ are used in hydraulic circuits, having SAE flare connections.

Advantages

N/A

  • High Pressure Capability
  • Bi-directional Flow
  • Economical Precision Orifice
  • Repeatable Orifice Size and Shape
  • Predictable Flow Rate

Flow Data

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

 1 psig: 23.7 5 psig: 50.6 10 psig: 68.2 15 psig: 82.6 20 psig: 97.3 25 psig: 112 30 psig: 126 40 psig: 156 50 psig: 185 60 psig: 214 70 psig: 244 80 psig: 273 90 psig: 303 100 psig: 331

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

 5 In. Hg.: 31.4 10 In. Hg.: 38.6

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

 15 In. Hg.: 39.4 20 In. Hg.: 39.4 30 In. Hg.: 39.4

Air Flow at Pressure - Standard Liters Per Minute (SLPM)

 1 psig (6.9 kPag): 11.2 5 psig (34.5 kPag): 23.9 10 psig (69.0 kPag): 32.2 15 psig (103.4 kPag): 39 20 psig (137.9 kPag): 45.9 25 psig (172.4 kPag): 52.8 30 psig (206.9 kPag): 59.7 40 psig (275.8 kPag): 73.6 50 psig (344.8 kPag): 87.4 60 psig (413.7 kPag): 101 70 psig (482.7 kPag): 115 80 psig (551.6 kPag): 129 90 psig (620.6 kPag): 143 100 psig (689.5 kPag): 156

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

 5 In. Hg. (127 Mm. Hg.): 14.8 10 In. Hg. (254 Mm. Hg.): 18.2

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

 15 In. Hg. (381 Mm. Hg.): 18.6 20 In. Hg. (508 Mm. Hg.): 18.6 30 In. Hg. (762 Mm. Hg.): 18.6

Water Flow - Gallons/minute (GPM)

 1 psig: 0.081 2 psig: 0.115 3 psig: 0.140 4 psig: 0.162 5 psig: 0.181 6 psig: 0.198 7 psig: 0.214 8 psig: 0.229 9 psig: 0.243 10 psig: 0.256 15 psig: 0.314 20 psig: 0.362 30 psig: 0.444 40 psig: 0.512 50 psig: 0.573 60 psig: 0.627 70 psig: 0.678 80 psig: 0.724 90 psig: 0.768 100 psig: 0.810

Water Flow - Liters/minute (LPM)

 1 psig (6.9 kPag): 0.307 2 psig (13.8 kPag): 0.434 3 psig (20.7 kPag): 0.531 4 psig (27.6 kPag): 0.613 5 psig (34.5 kPag): 0.686 6 psig (41.4 kPag): 0.751 7 psig (48.3 kPag): 0.811 8 psig (55.2 kPag): 0.867 9 psig (62.1 kPag): 0.920 10 psig (69 kPag): 0.970 15 psig (103.4 kPag): 1.188 20 psig (137.9 kPag): 1.371 30 psig (206.9 kPag): 1.679 40 psig (275.8 kPag): 1.939 50 psig (344.8 kPag): 2.168 60 psig (413.7 kPag): 2.375 70 psig (482.7 kPag): 2.565 80 psig (551.6 kPag): 2.742 90 psig (620.6 kPag): 2.909 100 psig (689.5 kPag): 3.066

Flow Data Status

 Generic