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

 304 SS

Nominal Orifice Size

 32

CV

 0.024

Maximum Operating Pressure

 200 psig

Connection A

 1/4" NPT Male

Connection B

 SAE 37 DEG #4 7/16"-20 Male

Screened

 None

Dimensions

Orifice Diameter

 0.032 in

Orifice Diameter Accuracy

 ±0.0005 in

Width Across Flats (Hex)

 9/16 in

Total Length

 1.42 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: 6.10 5 psig: 13.6 10 psig: 19.9 15 psig: 24.6 20 psig: 28.6 25 psig: 32.6 30 psig: 36.7 40 psig: 44.7 50 psig: 53.0 60 psig: 61.0 70 psig: 69.3 80 psig: 77.8 90 psig: 86.0 100 psig: 94.5

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

 5 In. Hg.: 8.73 10 In. Hg.: 10.9

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

 15 In. Hg.: 11.5 20 In. Hg.: 11.5 30 In. Hg.: 11.5

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

 1 psig (6.9 kPag): 2.88 5 psig (34.5 kPag): 6.42 10 psig (69.0 kPag): 9.40 15 psig (103.4 kPag): 11.6 20 psig (137.9 kPag): 13.5 25 psig (172.4 kPag): 15.4 30 psig (206.9 kPag): 17.3 40 psig (275.8 kPag): 21.1 50 psig (344.8 kPag): 25.0 60 psig (413.7 kPag): 28.8 70 psig (482.7 kPag): 32.7 80 psig (551.6 kPag): 36.7 90 psig (620.6 kPag): 40.6 100 psig (689.5 kPag): 44.6

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

 5 In. Hg. (127 Mm. Hg.): 4.12 10 In. Hg. (254 Mm. Hg.): 5.16

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

 15 In. Hg. (381 Mm. Hg.): 5.45 20 In. Hg. (508 Mm. Hg.): 5.45 30 In. Hg. (762 Mm. Hg.): 5.45

Water Flow - Gallons/minute (GPM)

 1 psig: 0.024 2 psig: 0.034 3 psig: 0.042 4 psig: 0.048 5 psig: 0.054 6 psig: 0.059 7 psig: 0.063 8 psig: 0.068 9 psig: 0.072 10 psig: 0.076 15 psig: 0.093 20 psig: 0.107 30 psig: 0.131 40 psig: 0.152 50 psig: 0.170 60 psig: 0.186 70 psig: 0.201 80 psig: 0.215 90 psig: 0.228 100 psig: 0.240

Water Flow - Liters/minute (LPM)

 1 psig (6.9 kPag): 0.091 2 psig (13.8 kPag): 0.128 3 psig (20.7 kPag): 0.157 4 psig (27.6 kPag): 0.182 5 psig (34.5 kPag): 0.203 6 psig (41.4 kPag): 0.203 7 psig (48.3 kPag): 0.240 8 psig (55.2 kPag): 0.257 9 psig (62.1 kPag): 0.273 10 psig (69 kPag): 0.287 15 psig (103.4 kPag): 0.352 20 psig (137.9 kPag): 0.406 30 psig (206.9 kPag): 0.498 40 psig (275.8 kPag): 0.575 50 psig (344.8 kPag): 0.642 60 psig (413.7 kPag): 0.704 70 psig (482.7 kPag): 0.760 80 psig (551.6 kPag): 0.813 90 psig (620.6 kPag): 0.862 100 psig (689.5 kPag): 0.908

Flow Data Status

 Generic