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
Print Back
    Orifices are accurately machined, thoroughly cleaned, and flow tested to exacting standards. Sizes range from .004" to as large as .035" orifice diameter. Special sizes can be made to order.
Unit of Measure

Specifications

Seal Material

 N/A Viton

Material

 N/A 303 SS

Nominal Orifice Size

 N/A 23

CV

 N/A 0.012

Maximum Operating Pressure

 N/A 100 psig

Taper

 N/A 7.5 º

Connection A

 N/A 10-32 UNF Male

Screened

 N/A Screened

Dimensions

Orifice Diameter

 N/A 0.023 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 1/4 in

Total Length

 N/A 0.310 in

Application

N/A

    The integral screen/orifice assembly provides a compact arrangement.
    Types QS, QXS – The screen protects the orifice from particles that could migrate from outside, when there is no fluid flow.

Flow Data

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

 N/A 1 psig: 2.99 5 psig: 6.87 10 psig: 10.1 15 psig: 12.6 20 psig: 14.7 25 psig: 16.8 30 psig: 19.0 40 psig: 23.3 50 psig: 27.5 60 psig: 31.8 70 psig: 36.0 80 psig: 40.3 90 psig: 44.5 100 psig: 48.7

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

 N/A 5 In. Hg.: 4.45 10 In. Hg.: 5.68

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

 N/A 15 In. Hg.: 6.04 20 In. Hg.: 6.04 30 In. Hg.: 6.04

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

 N/A 1 psig (6.9 kPag): 1.41 5 psig (34.5 kPag): 3.24 10 psig (69.0 kPag): 4.75 15 psig (103.4 kPag): 5.93 20 psig (137.9 kPag): 6.95 25 psig (172.4 kPag): 7.95 30 psig (206.9 kPag): 8.98 40 psig (275.8 kPag): 11.0 50 psig (344.8 kPag): 13.0 60 psig (413.7 kPag): 15.0 70 psig (482.7 kPag): 17.0 80 psig (551.6 kPag): 19.0 90 psig (620.6 kPag): 21.0 100 psig (689.5 kPag): 23.0

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

 N/A 5 In. Hg. (127 Mm. Hg.): 2.10 10 In. Hg. (254 Mm. Hg.): 2.68

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

 N/A 15 In. Hg. (381 Mm. Hg.): 2.85 20 In. Hg. (508 Mm. Hg.): 2.85 30 In. Hg. (762 Mm. Hg.): 2.85

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.012 2 psig: 0.017 3 psig: 0.021 4 psig: 0.024 5 psig: 0.027 6 psig: 0.029 7 psig: 0.032 8 psig: 0.034 9 psig: 0.036 10 psig: 0.038 15 psig: 0.046 20 psig: 0.054 30 psig: 0.066 40 psig: 0.076 50 psig: 0.085 60 psig: 0.093 70 psig: 0.100 80 psig: 0.107 90 psig: 0.114 100 psig: 0.120

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.045 2 psig (13.8 kPag): 0.064 3 psig (20.7 kPag): 0.079 4 psig (27.6 kPag): 0.091 5 psig (34.5 kPag): 0.102 6 psig (41.4 kPag): 0.102 7 psig (48.3 kPag): 0.120 8 psig (55.2 kPag): 0.128 9 psig (62.1 kPag): 0.136 10 psig (69 kPag): 0.144 15 psig (103.4 kPag): 0.176 20 psig (137.9 kPag): 0.203 30 psig (206.9 kPag): 0.249 40 psig (275.8 kPag): 0.287 50 psig (344.8 kPag): 0.321 60 psig (413.7 kPag): 0.352 70 psig (482.7 kPag): 0.380 80 psig (551.6 kPag): 0.406 90 psig (620.6 kPag): 0.431 100 psig (689.5 kPag): 0.454

Flow Data Status

 N/A Generic