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 303 SS

Nominal Orifice Size

 N/A 89

CV

 N/A 0.180

Maximum Operating Pressure

 N/A 4000 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 0.0890 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: 53.7 5 psig: 116 10 psig: 153 15 psig: 185 20 psig: 216 25 psig: 248 30 psig: 280 40 psig: 343 50 psig: 407 60 psig: 473 70 psig: 538 80 psig: 604 90 psig: 670 100 psig: 739

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

 N/A 5 In. Hg.: 76.1 10 In. Hg.: 94.9

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

 N/A 15 In. Hg.: 99.0 20 In. Hg.: 99.0 30 In. Hg.: 99.0

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

 N/A 1 psig (6.9 kPag): 25.4 5 psig (34.5 kPag): 54.9 10 psig (69.0 kPag): 72.3 15 psig (103.4 kPag): 87.3 20 psig (137.9 kPag): 102 25 psig (172.4 kPag): 117 30 psig (206.9 kPag): 132 40 psig (275.8 kPag): 162 50 psig (344.8 kPag): 192 60 psig (413.7 kPag): 223 70 psig (482.7 kPag): 254 80 psig (551.6 kPag): 285 90 psig (620.6 kPag): 316 100 psig (689.5 kPag): 349

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

 N/A 5 In. Hg. (127 Mm. Hg.): 35.9 10 In. Hg. (254 Mm. Hg.): 44.8

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

 N/A 15 In. Hg. (381 Mm. Hg.): 46.7 20 In. Hg. (508 Mm. Hg.): 46.7 30 In. Hg. (762 Mm. Hg.): 46.7

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.180 2 psig: 0.255 3 psig: 0.312 4 psig: 0.360 5 psig: 0.402 6 psig: 0.441 7 psig: 0.476 8 psig: 0.509 9 psig: 0.540 10 psig: 0.569 15 psig: 0.697 20 psig: 0.805 30 psig: 0.986 40 psig: 1.138 50 psig: 1.273 60 psig: 1.394 70 psig: 1.506 80 psig: 1.610 90 psig: 1.708 100 psig: 1.800

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.681 2 psig (13.8 kPag): 0.964 3 psig (20.7 kPag): 1.180 4 psig (27.6 kPag): 1.363 5 psig (34.5 kPag): 1.524 6 psig (41.4 kPag): 1.669 7 psig (48.3 kPag): 1.803 8 psig (55.2 kPag): 1.927 9 psig (62.1 kPag): 2.044 10 psig (69 kPag): 2.155 15 psig (103.4 kPag): 2.639 20 psig (137.9 kPag): 3.047 30 psig (206.9 kPag): 3.732 40 psig (275.8 kPag): 4.309 50 psig (344.8 kPag): 4.818 60 psig (413.7 kPag): 5.278 70 psig (482.7 kPag): 5.701 80 psig (551.6 kPag): 6.094 90 psig (620.6 kPag): 6.464 100 psig (689.5 kPag): 6.814

Flow Data Status

 N/A Generic