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 109

CV

 N/A 0.270

Maximum Operating Pressure

 N/A 2000 psig

Connection A

 N/A 1/4" NPT Male

Connection B

 N/A 1/4" 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 0.1090 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 3/4 in

Total Length

 N/A 1.25 in

Flow Data

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

 N/A 1 psig: 83.9 5 psig: 180 10 psig: 237 15 psig: 286 20 psig: 335 25 psig: 381 30 psig: 432 40 psig: 532 50 psig: 634 60 psig: 735 70 psig: 839 80 psig: 943 90 psig: 1042 100 psig: 1153

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

 N/A 5 In. Hg.: 114 10 In. Hg.: 142

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

 N/A 15 In. Hg.: 148 20 In. Hg.: 148 30 In. Hg.: 148

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

 N/A 1 psig (6.9 kPag): 39.6 5 psig (34.5 kPag): 84.8 10 psig (69.0 kPag): 112 15 psig (103.4 kPag): 135 20 psig (137.9 kPag): 158 25 psig (172.4 kPag): 180 30 psig (206.9 kPag): 204 40 psig (275.8 kPag): 251 50 psig (344.8 kPag): 299 60 psig (413.7 kPag): 347 70 psig (482.7 kPag): 396 80 psig (551.6 kPag): 445 90 psig (620.6 kPag): 492 100 psig (689.5 kPag): 544

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

 N/A 5 In. Hg. (127 Mm. Hg.): 53.9 10 In. Hg. (254 Mm. Hg.): 67.2

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

 N/A 15 In. Hg. (381 Mm. Hg.): 70.1 20 In. Hg. (508 Mm. Hg.): 70.1 30 In. Hg. (762 Mm. Hg.): 70.1

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.270 2 psig: 0.382 3 psig: 0.468 4 psig: 0.540 5 psig: 0.604 6 psig: 0.661 7 psig: 0.714 8 psig: 0.764 9 psig: 0.810 10 psig: 0.854 15 psig: 1.046 20 psig: 1.207 30 psig: 1.479 40 psig: 1.708 50 psig: 1.909 60 psig: 2.091 70 psig: 2.259 80 psig: 2.415 90 psig: 2.561 100 psig: 2.700

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 1.022 2 psig (13.8 kPag): 1.445 3 psig (20.7 kPag): 1.770 4 psig (27.6 kPag): 2.044 5 psig (34.5 kPag): 2.285 6 psig (41.4 kPag): 2.504 7 psig (48.3 kPag): 2.704 8 psig (55.2 kPag): 2.891 9 psig (62.1 kPag): 3.066 10 psig (69 kPag): 3.232 15 psig (103.4 kPag): 3.958 20 psig (137.9 kPag): 4.571 30 psig (206.9 kPag): 5.598 40 psig (275.8 kPag): 6.464 50 psig (344.8 kPag): 7.227 60 psig (413.7 kPag): 7.917 70 psig (482.7 kPag): 8.551 80 psig (551.6 kPag): 9.142 90 psig (620.6 kPag): 9.696 100 psig (689.5 kPag): 10.221

Flow Data Status

 N/A Generic