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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    This type precision orifice includes an o-ring for sealing against a flat surface. The set screw style can be installed in fittings, manifolds and custom parts for accurate flow rate control of liquids or gases.
Unit of Measure

Specifications

Seal Material

 Viton

Material

 Brass

Nominal Orifice Size

 5

CV

 0.00061

Maximum Temperature

 300 ºF

Maximum Operating Pressure

 200 psig

Maximum Opening Diameter

 0.093 in

Connection A

 1/4"-20 UNC Threaded Insert O-ring seal

Screened

 None

Dimensions

Orifice Diameter

 0.0051 in

Thread Size

 1/4-20

Width Across Flats (Hex)

 1/8 in

Total Length

 0.50 in

Orifice Diameter Accuracy

 ±0.0005 in

Flow Data

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

 1 psig: 0.136 5 psig: 0.33 10 psig: 0.47 15 psig: 0.59 20 psig: 0.70 25 psig: 0.82 30 psig: 0.92 40 psig: 1.15 50 psig: 1.37 60 psig: 1.59 70 psig: 1.82 80 psig: 2.04 90 psig: 2.27 100 psig: 2.48

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

 5 In. Hg.: 0.203 10 In. Hg.: 0.263

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

 15 In. Hg.: 0.284 20 In. Hg.: 0.284 30 In. Hg.: 0.284

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

 1 psig (6.9 kPag): 0.064 5 psig (34.5 kPag): 0.16 10 psig (69.0 kPag): 0.22 15 psig (103.4 kPag): 0.28 20 psig (137.9 kPag): 0.33 25 psig (172.4 kPag): 0.39 30 psig (206.9 kPag): 0.44 40 psig (275.8 kPag): 0.54 50 psig (344.8 kPag): 0.65 60 psig (413.7 kPag): 0.75 70 psig (482.7 kPag): 0.86 80 psig (551.6 kPag): 0.96 90 psig (620.6 kPag): 1.07 100 psig (689.5 kPag): 1.17

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

 5 In. Hg. (127 Mm. Hg.): 0.096 10 In. Hg. (254 Mm. Hg.): 0.124

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

 15 In. Hg. (381 Mm. Hg.): 0.134 20 In. Hg. (508 Mm. Hg.): 0.134 30 In. Hg. (762 Mm. Hg.): 0.134

Water Flow - Gallons/minute (GPM)

 1 psig: 0.0006 2 psig: 0.0009 3 psig: 0.0011 4 psig: 0.0012 5 psig: 0.0014 6 psig: 0.0015 7 psig: 0.0016 8 psig: 0.0017 9 psig: 0.0018 10 psig: 0.0019 15 psig: 0.0024 20 psig: 0.0027 30 psig: 0.0033 40 psig: 0.0039 50 psig: 0.0043 60 psig: 0.0047 70 psig: 0.0051 80 psig: 0.0055 90 psig: 0.0058 100 psig: 0.0061

Water Flow - Liters/minute (LPM)

 1 psig (6.9 kPag): 0.0023 2 psig (13.8 kPag): 0.0033 3 psig (20.7 kPag): 0.0040 4 psig (27.6 kPag): 0.0046 5 psig (34.5 kPag): 0.0052 6 psig (41.4 kPag): 0.0052 7 psig (48.3 kPag): 0.0061 8 psig (55.2 kPag): 0.0065 9 psig (62.1 kPag): 0.0069 10 psig (69 kPag): 0.0073 15 psig (103.4 kPag): 0.0089 20 psig (137.9 kPag): 0.0103 30 psig (206.9 kPag): 0.0126 40 psig (275.8 kPag): 0.0146 50 psig (344.8 kPag): 0.0163 60 psig (413.7 kPag): 0.0179 70 psig (482.7 kPag): 0.0193 80 psig (551.6 kPag): 0.0207 90 psig (620.6 kPag): 0.0219 100 psig (689.5 kPag): 0.0231

Flow Data Status

 Generic