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.
Unit of Measure

Specifications

Seal Material

 Viton

Material

 Brass

Nominal Orifice Size

 52

CV

 0.059

Maximum Operating Pressure

 2000 psig

Connection A

 9/16-18 Male UNF with O-Ring

Connection B

 1/8" NPT Female

Screened

 None

Dimensions

Orifice Diameter

 0.052 in

Orifice Diameter Accuracy

 ±0.0005 in

Width Across Flats (Hex)

 5/8 in

Total Length

 0.75 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: 17.00 5 psig: 37.3 10 psig: 51.9 15 psig: 62.9 20 psig: 74.2 25 psig: 85.4 30 psig: 96.6 40 psig: 119 50 psig: 142 60 psig: 165 70 psig: 187 80 psig: 210 90 psig: 231 100 psig: 254

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

 5 In. Hg.: 23.9 10 In. Hg.: 29.4

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

 15 In. Hg.: 30.5 20 In. Hg.: 30.5 30 In. Hg.: 30.5

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

 1 psig (6.9 kPag): 8.04 5 psig (34.5 kPag): 17.6 10 psig (69.0 kPag): 24.5 15 psig (103.4 kPag): 29.7 20 psig (137.9 kPag): 35 25 psig (172.4 kPag): 40.3 30 psig (206.9 kPag): 45.6 40 psig (275.8 kPag): 56.3 50 psig (344.8 kPag): 66.9 60 psig (413.7 kPag): 77.7 70 psig (482.7 kPag): 88.4 80 psig (551.6 kPag): 99.1 90 psig (620.6 kPag): 109 100 psig (689.5 kPag): 120

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

 5 In. Hg. (127 Mm. Hg.): 11.3 10 In. Hg. (254 Mm. Hg.): 13.9

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

 15 In. Hg. (381 Mm. Hg.): 14.4 20 In. Hg. (508 Mm. Hg.): 14.4 30 In. Hg. (762 Mm. Hg.): 14.4

Water Flow - Gallons/minute (GPM)

 1 psig: 0.059 2 psig: 0.083 3 psig: 0.102 4 psig: 0.118 5 psig: 0.132 6 psig: 0.145 7 psig: 0.156 8 psig: 0.167 9 psig: 0.177 10 psig: 0.187 15 psig: 0.229 20 psig: 0.264 30 psig: 0.323 40 psig: 0.373 50 psig: 0.417 60 psig: 0.457 70 psig: 0.494 80 psig: 0.528 90 psig: 0.560 100 psig: 0.590

Water Flow - Liters/minute (LPM)

 1 psig (6.9 kPag): 0.223 2 psig (13.8 kPag): 0.316 3 psig (20.7 kPag): 0.387 4 psig (27.6 kPag): 0.447 5 psig (34.5 kPag): 0.499 6 psig (41.4 kPag): 0.547 7 psig (48.3 kPag): 0.591 8 psig (55.2 kPag): 0.632 9 psig (62.1 kPag): 0.67 10 psig (69 kPag): 0.706 15 psig (103.4 kPag): 0.865 20 psig (137.9 kPag): 0.999 30 psig (206.9 kPag): 1.223 40 psig (275.8 kPag): 1.413 50 psig (344.8 kPag): 1.579 60 psig (413.7 kPag): 1.730 70 psig (482.7 kPag): 1.869 80 psig (551.6 kPag): 1.998 90 psig (620.6 kPag): 2.119 100 psig (689.5 kPag): 2.233

Flow Data Status

 Generic