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

 N/A Brass

Nominal Orifice Size

 N/A 22

CV

 N/A 0.011

Maximum Operating Pressure

 N/A 2000 psig

Taper

 N/A 45 º

Connection A

 N/A 1/8" NPT Male

Connection B

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

Screened

 N/A Screened

Dimensions

Orifice Diameter

 N/A 0.022 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 7/16 in

Total Length

 N/A 1.04 in

Application

N/A

    The integral screen/orifice assembly provides a compact arrangement. All types on this page The screen is located upstream of the orifice and protects against particles carried by the pressurized fluid. For protection against contamination in reverse flow situations add an external screen downstream of the orifice.

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)

 N/A 1 psig: 2.73 5 psig: 6.29 10 psig: 9.17 15 psig: 11.3 20 psig: 13.5 25 psig: 15.5 30 psig: 17.4 40 psig: 21.4 50 psig: 25.2 60 psig: 29.2 70 psig: 33.1 80 psig: 37.1 90 psig: 40.9 100 psig: 44.7

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

 N/A 5 In. Hg.: 4.03 10 In. Hg.: 5.17

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

 N/A 15 In. Hg.: 5.53 20 In. Hg.: 5.53 30 In. Hg.: 5.53

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

 N/A 1 psig (6.9 kPag): 1.29 5 psig (34.5 kPag): 2.97 10 psig (69.0 kPag): 4.33 15 psig (103.4 kPag): 5.35 20 psig (137.9 kPag): 6.35 25 psig (172.4 kPag): 7.30 30 psig (206.9 kPag): 8.23 40 psig (275.8 kPag): 10.1 50 psig (344.8 kPag): 11.9 60 psig (413.7 kPag): 13.8 70 psig (482.7 kPag): 15.6 80 psig (551.6 kPag): 17.5 90 psig (620.6 kPag): 19.3 100 psig (689.5 kPag): 21.1

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

 N/A 5 In. Hg. (127 Mm. Hg.): 1.90 10 In. Hg. (254 Mm. Hg.): 2.44

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

 N/A 15 In. Hg. (381 Mm. Hg.): 2.61 20 In. Hg. (508 Mm. Hg.): 2.61 30 In. Hg. (762 Mm. Hg.): 2.61

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.011 2 psig: 0.016 3 psig: 0.019 4 psig: 0.022 5 psig: 0.025 6 psig: 0.027 7 psig: 0.029 8 psig: 0.031 9 psig: 0.033 10 psig: 0.035 15 psig: 0.043 20 psig: 0.049 30 psig: 0.060 40 psig: 0.070 50 psig: 0.078 60 psig: 0.085 70 psig: 0.092 80 psig: 0.098 90 psig: 0.104 100 psig: 0.110

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.042 2 psig (13.8 kPag): 0.059 3 psig (20.7 kPag): 0.072 4 psig (27.6 kPag): 0.083 5 psig (34.5 kPag): 0.093 6 psig (41.4 kPag): 0.093 7 psig (48.3 kPag): 0.110 8 psig (55.2 kPag): 0.118 9 psig (62.1 kPag): 0.125 10 psig (69 kPag): 0.132 15 psig (103.4 kPag): 0.161 20 psig (137.9 kPag): 0.186 30 psig (206.9 kPag): 0.228 40 psig (275.8 kPag): 0.263 50 psig (344.8 kPag): 0.294 60 psig (413.7 kPag): 0.323 70 psig (482.7 kPag): 0.348 80 psig (551.6 kPag): 0.372 90 psig (620.6 kPag): 0.395 100 psig (689.5 kPag): 0.416

Flow Data Status

 N/A Generic