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

 40

CV

 0.036

Maximum Temperature

 166 ºC

Maximum Operating Pressure

 14 bar

Maximum Opening Diameter

 2.41 mm

Maximum Operating Pressure

 1400 kPa

Connection A

 M6 Threaded Insert O-Ring seal

Screened

 None

Dimensions

Orifice Diameter

 1.02 mm

Thread Size

 M6x1

Width Across Flats (Hex)

 3 mm

Total Length

 12.7 mm

Orifice Diameter Accuracy

 0.013 mm

Flow Data

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

 1 psig: 9.75 5 psig: 21.6 10 psig: 30.5 15 psig: 37.5 20 psig: 44.3 25 psig: 50.9 30 psig: 57.6 40 psig: 71.2 50 psig: 85.0 60 psig: 99.0 70 psig: 113 80 psig: 127 90 psig: 141 100 psig: 156

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

 5 In. Hg.: 14.3 10 In. Hg.: 17.6

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

 15 In. Hg.: 18.3 20 In. Hg.: 18.3 30 In. Hg.: 18.3

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

 1 psig (6.9 kPag): 4.6 5 psig (34.5 kPag): 10.2 10 psig (69.0 kPag): 14.4 15 psig (103.4 kPag): 17.7 20 psig (137.9 kPag): 20.9 25 psig (172.4 kPag): 24 30 psig (206.9 kPag): 27.2 40 psig (275.8 kPag): 33.6 50 psig (344.8 kPag): 40.1 60 psig (413.7 kPag): 46.7 70 psig (482.7 kPag): 53.3 80 psig (551.6 kPag): 60 90 psig (620.6 kPag): 66.7 100 psig (689.5 kPag): 73.5

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

 5 In. Hg. (127 Mm. Hg.): 6.76 10 In. Hg. (254 Mm. Hg.): 8.31

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

 15 In. Hg. (381 Mm. Hg.): 8.66 20 In. Hg. (508 Mm. Hg.): 8.66 30 In. Hg. (762 Mm. Hg.): 8.66

Water Flow - Gallons/minute (GPM)

 1 psig: 0.036 2 psig: 0.051 3 psig: 0.062 4 psig: 0.072 5 psig: 0.080 6 psig: 0.088 7 psig: 0.095 8 psig: 0.102 9 psig: 0.108 10 psig: 0.114 15 psig: 0.139 20 psig: 0.161 30 psig: 0.197 40 psig: 0.228 50 psig: 0.255 60 psig: 0.279 70 psig: 0.301 80 psig: 0.322 90 psig: 0.342 100 psig: 0.360

Water Flow - Liters/minute (LPM)

 1 psig (6.9 kPag): 0.136 2 psig (13.8 kPag): 0.193 3 psig (20.7 kPag): 0.236 4 psig (27.6 kPag): 0.273 5 psig (34.5 kPag): 0.305 6 psig (41.4 kPag): 0.334 7 psig (48.3 kPag): 0.361 8 psig (55.2 kPag): 0.385 9 psig (62.1 kPag): 0.409 10 psig (69 kPag): 0.431 15 psig (103.4 kPag): 0.528 20 psig (137.9 kPag): 0.609 30 psig (206.9 kPag): 0.746 40 psig (275.8 kPag): 0.862 50 psig (344.8 kPag): 0.964 60 psig (413.7 kPag): 1.056 70 psig (482.7 kPag): 1.140 80 psig (551.6 kPag): 1.219 90 psig (620.6 kPag): 1.293 100 psig (689.5 kPag): 1.363

Flow Data Status

 Generic