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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    One-piece construction of solid metal is employed. Orifices are accurately machined, thoroughly cleaned, and flow tested to exacting standards. Sizes range from .004" to .125" orifice diameter. Special sizes can be made to order.
Unit of Measure

Specifications

Material

 N/A Brass

Nominal Orifice Size

 N/A 14

CV

 N/A 0.0043

Maximum Operating Pressure

 N/A 2000 psig

Connection A

 N/A 1/2" NPT Male

Connection B

 N/A 1/2" NPT Female

Screened

 N/A None

Application

N/A

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

Dimensions

Orifice Diameter

 N/A 0.0142 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 1 1/16 in

Total Length

 N/A 1.690 in

Flow Data

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

 N/A 1 psig: 1.11 5 psig: 2.56 10 psig: 3.56 15 psig: 4.45 20 psig: 5.28 25 psig: 6.06 30 psig: 6.80 40 psig: 8.33 50 psig: 9.83 60 psig: 11.3 70 psig: 12.8 80 psig: 14.3 90 psig: 15.9 100 psig: 17.4

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

 N/A 5 In. Hg.: 1.64 10 In. Hg.: 2.06

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

 N/A 15 In. Hg.: 2.26 20 In. Hg.: 2.26 30 In. Hg.: 2.26

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

 N/A 1 psig (6.9 kPag): 0.52 5 psig (34.5 kPag): 1.21 10 psig (69.0 kPag): 1.68 15 psig (103.4 kPag): 2.10 20 psig (137.9 kPag): 2.49 25 psig (172.4 kPag): 2.86 30 psig (206.9 kPag): 3.21 40 psig (275.8 kPag): 3.93 50 psig (344.8 kPag): 4.64 60 psig (413.7 kPag): 5.34 70 psig (482.7 kPag): 6.05 80 psig (551.6 kPag): 6.77 90 psig (620.6 kPag): 7.49 100 psig (689.5 kPag): 8.21

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

 N/A 5 In. Hg. (127 Mm. Hg.): 0.773 10 In. Hg. (254 Mm. Hg.): 0.972

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

 N/A 15 In. Hg. (381 Mm. Hg.): 1.07 20 In. Hg. (508 Mm. Hg.): 1.07 30 In. Hg. (762 Mm. Hg.): 1.07

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.0043 2 psig: 0.0061 3 psig: 0.0074 4 psig: 0.0086 5 psig: 0.0096 6 psig: 0.0105 7 psig: 0.0114 8 psig: 0.0122 9 psig: 0.0129 10 psig: 0.0136 15 psig: 0.0167 20 psig: 0.0192 30 psig: 0.0236 40 psig: 0.0272 50 psig: 0.0304 60 psig: 0.0333 70 psig: 0.0360 80 psig: 0.0385 90 psig: 0.0408 100 psig: 0.0430

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.0163 2 psig (13.8 kPag): 0.0230 3 psig (20.7 kPag): 0.0282 4 psig (27.6 kPag): 0.0326 5 psig (34.5 kPag): 0.0364 6 psig (41.4 kPag): 0.0364 7 psig (48.3 kPag): 0.0431 8 psig (55.2 kPag): 0.0460 9 psig (62.1 kPag): 0.0488 10 psig (69 kPag): 0.0515 15 psig (103.4 kPag): 0.0630 20 psig (137.9 kPag): 0.0728 30 psig (206.9 kPag): 0.0892 40 psig (275.8 kPag): 0.1029 50 psig (344.8 kPag): 0.1151 60 psig (413.7 kPag): 0.1261 70 psig (482.7 kPag): 0.1362 80 psig (551.6 kPag): 0.1456 90 psig (620.6 kPag): 0.1544 100 psig (689.5 kPag): 0.1628

Flow Data Status

 N/A Generic