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

 Fluorocarbon

Material

 Brass

Nominal Orifice Size

 8

CV

 0.0015

Maximum Temperature

 166 ºC

Maximum Operating Pressure

 14 bar

Maximum Opening Diameter

 1.57 mm

Maximum Operating Pressure

 1400 kPa

Connection A

 M5 Threaded Insert O-Ring seal

Screened

 None

Dimensions

Orifice Diameter

 0.2 mm

Thread Size

 M5x0.8

Width Across Flats (Hex)

 2.5 mm

Total Length

 10.8 mm

Orifice Diameter Accuracy

 0.013 mm

Flow Data

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

 1 psig: 0.36 5 psig: 0.85 10 psig: 1.21 15 psig: 1.53 20 psig: 1.80 25 psig: 2.08 30 psig: 2.37 40 psig: 2.92 50 psig: 3.50 60 psig: 4.05 70 psig: 4.60 80 psig: 5.15 90 psig: 5.70 100 psig: 6.25

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

 5 In. Hg.: 0.536 10 In. Hg.: 0.687

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

 15 In. Hg.: 0.744 20 In. Hg.: 0.744 30 In. Hg.: 0.744

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

 1 psig (6.9 kPag): 0.170 5 psig (34.5 kPag): 0.40 10 psig (69.0 kPag): 0.57 15 psig (103.4 kPag): 0.72 20 psig (137.9 kPag): 0.85 25 psig (172.4 kPag): 0.98 30 psig (206.9 kPag): 1.12 40 psig (275.8 kPag): 1.38 50 psig (344.8 kPag): 1.65 60 psig (413.7 kPag): 1.91 70 psig (482.7 kPag): 2.17 80 psig (551.6 kPag): 2.43 90 psig (620.6 kPag): 2.69 100 psig (689.5 kPag): 2.95

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

 5 In. Hg. (127 Mm. Hg.): 0.253 10 In. Hg. (254 Mm. Hg.): 0.324

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

 15 In. Hg. (381 Mm. Hg.): 0.351 20 In. Hg. (508 Mm. Hg.): 0.351 30 In. Hg. (762 Mm. Hg.): 0.351

Water Flow - Gallons/minute (GPM)

 1 psig: 0.0015 2 psig: 0.0021 3 psig: 0.0026 4 psig: 0.0030 5 psig: 0.0034 6 psig: 0.0037 7 psig: 0.0040 8 psig: 0.0042 9 psig: 0.0045 10 psig: 0.0047 15 psig: 0.0058 20 psig: 0.0067 30 psig: 0.0082 40 psig: 0.0095 50 psig: 0.0106 60 psig: 0.0116 70 psig: 0.0125 80 psig: 0.0134 90 psig: 0.0142 100 psig: 0.0150

Water Flow - Liters/minute (LPM)

 1 psig (6.9 kPag): 0.0057 2 psig (13.8 kPag): 0.0080 3 psig (20.7 kPag): 0.0098 4 psig (27.6 kPag): 0.0114 5 psig (34.5 kPag): 0.0127 6 psig (41.4 kPag): 0.0127 7 psig (48.3 kPag): 0.0150 8 psig (55.2 kPag): 0.0161 9 psig (62.1 kPag): 0.0170 10 psig (69 kPag): 0.0180 15 psig (103.4 kPag): 0.0220 20 psig (137.9 kPag): 0.0254 30 psig (206.9 kPag): 0.0311 40 psig (275.8 kPag): 0.0359 50 psig (344.8 kPag): 0.0402 60 psig (413.7 kPag): 0.0440 70 psig (482.7 kPag): 0.0475 80 psig (551.6 kPag): 0.0508 90 psig (620.6 kPag): 0.0539 100 psig (689.5 kPag): 0.0568

Flow Data Status

 Generic