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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    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 11

CV

 N/A 0.0028

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 0.011 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: 0.653 5 psig: 1.51 10 psig: 2.14 15 psig: 2.67 20 psig: 3.16 25 psig: 3.62 30 psig: 4.09 40 psig: 5.02 50 psig: 5.93 60 psig: 6.84 70 psig: 7.76 80 psig: 8.67 90 psig: 9.56 100 psig: 10.5

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

 N/A 5 In. Hg.: 0.953 10 In. Hg.: 1.20

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

 N/A 15 In. Hg.: 1.30 20 In. Hg.: 1.30 30 In. Hg.: 1.30

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

 N/A 1 psig (6.9 kPag): 0.308 5 psig (34.5 kPag): 0.71 10 psig (69.0 kPag): 1.01 15 psig (103.4 kPag): 1.26 20 psig (137.9 kPag): 1.49 25 psig (172.4 kPag): 1.71 30 psig (206.9 kPag): 1.93 40 psig (275.8 kPag): 2.37 50 psig (344.8 kPag): 2.80 60 psig (413.7 kPag): 3.23 70 psig (482.7 kPag): 3.66 80 psig (551.6 kPag): 4.09 90 psig (620.6 kPag): 4.51 100 psig (689.5 kPag): 4.94

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

 N/A 5 In. Hg. (127 Mm. Hg.): 0.450 10 In. Hg. (254 Mm. Hg.): 0.564

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

 N/A 15 In. Hg. (381 Mm. Hg.): 0.614 20 In. Hg. (508 Mm. Hg.): 0.614 30 In. Hg. (762 Mm. Hg.): 0.614

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.0028 2 psig: 0.0040 3 psig: 0.0048 4 psig: 0.0056 5 psig: 0.0063 6 psig: 0.0069 7 psig: 0.0074 8 psig: 0.0079 9 psig: 0.0084 10 psig: 0.0089 15 psig: 0.0108 20 psig: 0.0125 30 psig: 0.0153 40 psig: 0.0177 50 psig: 0.0198 60 psig: 0.0217 70 psig: 0.0234 80 psig: 0.0250 90 psig: 0.0266 100 psig: 0.0280

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.0106 2 psig (13.8 kPag): 0.0150 3 psig (20.7 kPag): 0.0184 4 psig (27.6 kPag): 0.0212 5 psig (34.5 kPag): 0.0237 6 psig (41.4 kPag): 0.0237 7 psig (48.3 kPag): 0.0280 8 psig (55.2 kPag): 0.0300 9 psig (62.1 kPag): 0.0318 10 psig (69 kPag): 0.0335 15 psig (103.4 kPag): 0.0411 20 psig (137.9 kPag): 0.0474 30 psig (206.9 kPag): 0.0581 40 psig (275.8 kPag): 0.0670 50 psig (344.8 kPag): 0.0749 60 psig (413.7 kPag): 0.0821 70 psig (482.7 kPag): 0.0887 80 psig (551.6 kPag): 0.0948 90 psig (620.6 kPag): 0.1006 100 psig (689.5 kPag): 0.1060

Flow Data Status

 N/A Generic