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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    One-piece construction of solid metal is employed. Orifices are accurately machined, thoroughly cleaned, and flow tested to exacting standards. Sizes range from .004" to .125" orifice diameter. Special sizes can be made to order. Type DEL is a two-piece construction.
Unit of Measure

Specifications

Material

 N/A Brass

Nominal Orifice Size

 N/A 25

CV

 N/A 0.014

Maximum Operating Pressure

 N/A 2000 psig

Inlet Type

 N/A NPT Thread

Connection A

 N/A 1/4" NPT Male

Screened

 N/A None

Dimensions

Orifice Diameter

 N/A 0.025 in

Width Across Flats (Hex)

 N/A 9/16 in

Total Length

 N/A 0.800 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Application

N/A

  • Precision Flow Control – Gases or Liquids
  • Speed Controls – Cylinders and Actuators
  • Accurate Timing in Pneumatic or Hydraulic Circuits
  • Flow Restriction
  • Accurate Throttling
  • Snubbers - Gages and Instruments
  • Ultrasonic Sound Sources

Advantages

N/A

  • High Pressure Capability
  • Bi-directional Flow Compatibility
  • 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: 3.54 5 psig: 8.12 10 psig: 11.8 15 psig: 14.7 20 psig: 17.3 25 psig: 19.9 30 psig: 22.5 40 psig: 27.5 50 psig: 32.6 60 psig: 37.5 70 psig: 42.6 80 psig: 47.7 90 psig: 52.8 100 psig: 58.1

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

 N/A 5 In. Hg.: 5.25 10 In. Hg.: 6.63

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

 N/A 15 In. Hg.: 7.08 20 In. Hg.: 7.08 30 In. Hg.: 7.08

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

 N/A 1 psig (6.9 kPag): 1.67 5 psig (34.5 kPag): 3.83 10 psig (69.0 kPag): 5.55 15 psig (103.4 kPag): 6.95 20 psig (137.9 kPag): 8.15 25 psig (172.4 kPag): 9.38 30 psig (206.9 kPag): 10.6 40 psig (275.8 kPag): 13.0 50 psig (344.8 kPag): 15.4 60 psig (413.7 kPag): 17.7 70 psig (482.7 kPag): 20.1 80 psig (551.6 kPag): 22.5 90 psig (620.6 kPag): 24.9 100 psig (689.5 kPag): 27.4

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

 N/A 5 In. Hg. (127 Mm. Hg.): 2.48 10 In. Hg. (254 Mm. Hg.): 3.13

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

 N/A 15 In. Hg. (381 Mm. Hg.): 3.34 20 In. Hg. (508 Mm. Hg.): 3.34 30 In. Hg. (762 Mm. Hg.): 3.34

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.014 2 psig: 0.020 3 psig: 0.024 4 psig: 0.028 5 psig: 0.031 6 psig: 0.034 7 psig: 0.037 8 psig: 0.040 9 psig: 0.042 10 psig: 0.044 15 psig: 0.054 20 psig: 0.063 30 psig: 0.077 40 psig: 0.089 50 psig: 0.099 60 psig: 0.108 70 psig: 0.117 80 psig: 0.125 90 psig: 0.133 100 psig: 0.140

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.053 2 psig (13.8 kPag): 0.075 3 psig (20.7 kPag): 0.092 4 psig (27.6 kPag): 0.106 5 psig (34.5 kPag): 0.119 6 psig (41.4 kPag): 0.119 7 psig (48.3 kPag): 0.140 8 psig (55.2 kPag): 0.150 9 psig (62.1 kPag): 0.159 10 psig (69 kPag): 0.168 15 psig (103.4 kPag): 0.205 20 psig (137.9 kPag): 0.237 30 psig (206.9 kPag): 0.290 40 psig (275.8 kPag): 0.335 50 psig (344.8 kPag): 0.375 60 psig (413.7 kPag): 0.411 70 psig (482.7 kPag): 0.443 80 psig (551.6 kPag): 0.474 90 psig (620.6 kPag): 0.503 100 psig (689.5 kPag): 0.530

Flow Data Status

 N/A Generic