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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    Set screw style threaded orifice inserts can be installed in fittings, manifolds or custom parts to establish flow rates of liquids or gases. Standard size orifices range from .004" to .063". Both brass and 316 SS materials are offered.
Unit of Measure

Specifications

Material

 N/A Brass

Nominal Orifice Size

 N/A 16

Connection A

 N/A 1/4"-20 UNC Threaded Insert

Screened

 N/A None

Dimensions

Orifice Diameter

 N/A 0.016 in

Thread Size

 N/A 1/4-20

Width Across Flats (Hex)

 N/A 1/8 in

Total Length

 N/A 0.25 in

Flow Data

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

 N/A 1 psig: 1.40 5 psig: 3.26 10 psig: 4.26 15 psig: 5.30 20 psig: 6.29 25 psig: 7.25 30 psig: 8.20 40 psig: 10.1 50 psig: 12.1 60 psig: 14.0 70 psig: 16 80 psig: 17.9 90 psig: 19.9 100 psig: 21.8

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

 N/A 5 In. Hg.: 2.07 10 In. Hg.: 2.62

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

 N/A 15 In. Hg.: 2.86 20 In. Hg.: 2.86 30 In. Hg.: 2.86

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

 N/A 1 psig (6.9 kPag): 0.66 5 psig (34.5 kPag): 1.54 10 psig (69.0 kPag): 2.01 15 psig (103.4 kPag): 2.50 20 psig (137.9 kPag): 2.97 25 psig (172.4 kPag): 3.42 30 psig (206.9 kPag): 3.87 40 psig (275.8 kPag): 4.78 50 psig (344.8 kPag): 5.70 60 psig (413.7 kPag): 6.61 70 psig (482.7 kPag): 7.53 80 psig (551.6 kPag): 8.46 90 psig (620.6 kPag): 9.38 100 psig (689.5 kPag): 10.3

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

 N/A 5 In. Hg. (127 Mm. Hg.): 0.977 10 In. Hg. (254 Mm. Hg.): 1.24

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

 N/A 15 In. Hg. (381 Mm. Hg.): 1.35 20 In. Hg. (508 Mm. Hg.): 1.35 30 In. Hg. (762 Mm. Hg.): 1.35

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.0055 2 psig: 0.0078 3 psig: 0.0095 4 psig: 0.0110 5 psig: 0.0123 6 psig: 0.0135 7 psig: 0.0146 8 psig: 0.0156 9 psig: 0.0165 10 psig: 0.0174 15 psig: 0.0213 20 psig: 0.0246 30 psig: 0.0301 40 psig: 0.0348 50 psig: 0.0389 60 psig: 0.0426 70 psig: 0.0460 80 psig: 0.0492 90 psig: 0.0522 100 psig: 0.0550

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.0208 2 psig (13.8 kPag): 0.0294 3 psig (20.7 kPag): 0.0361 4 psig (27.6 kPag): 0.0416 5 psig (34.5 kPag): 0.0466 6 psig (41.4 kPag): 0.0466 7 psig (48.3 kPag): 0.0551 8 psig (55.2 kPag): 0.0589 9 psig (62.1 kPag): 0.0625 10 psig (69 kPag): 0.0658 15 psig (103.4 kPag): 0.0806 20 psig (137.9 kPag): 0.0931 30 psig (206.9 kPag): 0.1140 40 psig (275.8 kPag): 0.1317 50 psig (344.8 kPag): 0.1472 60 psig (413.7 kPag): 0.1613 70 psig (482.7 kPag): 0.1742 80 psig (551.6 kPag): 0.1862 90 psig (620.6 kPag): 0.1975 100 psig (689.5 kPag): 0.2082

Flow Data Status

 N/A Generic