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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    Precision orifice assemblies that adapt to common fittings used in process instruments and hydraulic systems are shown.
Unit of Measure

Specifications

Material

 N/A Brass

Nominal Orifice Size

 N/A 14

CV

 N/A 0.0043

Maximum Operating Pressure

 N/A 2000 psig

Taper

 N/A 45 º

Connection A

 N/A 1/8" NPT Male

Connection B

 N/A SAE 45 DEG #4 7/16"-20 Male

Screened

 N/A Screened

Dimensions

Orifice Diameter

 N/A 0.0142 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 7/16 in

Total Length

 N/A 1.04 in

Application

N/A

    The integral screen/orifice assembly provides a compact arrangement. All types on this page The screen is located upstream of the orifice and protects against particles carried by the pressurized fluid. For protection against contamination in reverse flow situations add an external screen downstream of the orifice.

Advantages

N/A

  • High Pressure Capability
  • Bi-directional Flow
  • Economical Precision Orifice
  • Repeatable Orifice Size and Shape
  • Predictable Flow Rate

Flow Data

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

 N/A 1 psig: 1.11 5 psig: 2.56 10 psig: 3.56 15 psig: 4.45 20 psig: 5.28 25 psig: 6.06 30 psig: 6.80 40 psig: 8.33 50 psig: 9.83 60 psig: 11.3 70 psig: 12.8 80 psig: 14.3 90 psig: 15.9 100 psig: 17.4

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

 N/A 5 In. Hg.: 1.64 10 In. Hg.: 2.06

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

 N/A 15 In. Hg.: 2.26 20 In. Hg.: 2.26 30 In. Hg.: 2.26

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

 N/A 1 psig (6.9 kPag): 0.52 5 psig (34.5 kPag): 1.21 10 psig (69.0 kPag): 1.68 15 psig (103.4 kPag): 2.10 20 psig (137.9 kPag): 2.49 25 psig (172.4 kPag): 2.86 30 psig (206.9 kPag): 3.21 40 psig (275.8 kPag): 3.93 50 psig (344.8 kPag): 4.64 60 psig (413.7 kPag): 5.34 70 psig (482.7 kPag): 6.05 80 psig (551.6 kPag): 6.77 90 psig (620.6 kPag): 7.49 100 psig (689.5 kPag): 8.21

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

 N/A 5 In. Hg. (127 Mm. Hg.): 0.773 10 In. Hg. (254 Mm. Hg.): 0.972

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

 N/A 15 In. Hg. (381 Mm. Hg.): 1.07 20 In. Hg. (508 Mm. Hg.): 1.07 30 In. Hg. (762 Mm. Hg.): 1.07

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.0043 2 psig: 0.0061 3 psig: 0.0074 4 psig: 0.0086 5 psig: 0.0096 6 psig: 0.0105 7 psig: 0.0114 8 psig: 0.0122 9 psig: 0.0129 10 psig: 0.0136 15 psig: 0.0167 20 psig: 0.0192 30 psig: 0.0236 40 psig: 0.0272 50 psig: 0.0304 60 psig: 0.0333 70 psig: 0.0360 80 psig: 0.0385 90 psig: 0.0408 100 psig: 0.0430

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.0163 2 psig (13.8 kPag): 0.0230 3 psig (20.7 kPag): 0.0282 4 psig (27.6 kPag): 0.0326 5 psig (34.5 kPag): 0.0364 6 psig (41.4 kPag): 0.0364 7 psig (48.3 kPag): 0.0431 8 psig (55.2 kPag): 0.0460 9 psig (62.1 kPag): 0.0488 10 psig (69 kPag): 0.0515 15 psig (103.4 kPag): 0.0630 20 psig (137.9 kPag): 0.0728 30 psig (206.9 kPag): 0.0892 40 psig (275.8 kPag): 0.1029 50 psig (344.8 kPag): 0.1151 60 psig (413.7 kPag): 0.1261 70 psig (482.7 kPag): 0.1362 80 psig (551.6 kPag): 0.1456 90 psig (620.6 kPag): 0.1544 100 psig (689.5 kPag): 0.1628

Flow Data Status

 N/A Generic