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    Precision orifice assemblies that adapt to common fittings used in the process industry. Press-fit inserts are used with standard compression tube fittings to form a precision orifice assembly. The fittings shown here are for 1/4" OD tubing, or 3/16" OD tubing.
Unit of Measure

Material

 N/A 316 SS

Nominal Orifice Size

 N/A 24

CV

 N/A 0.013

Maximum Operating Pressure

 N/A 4000 psig

Maximum Pressure Differential

 N/A 200 psid

Connection A

 N/A 1/4" NPT Male

Connection B

 N/A 1/4" OD Tube Compression

Screened

 N/A None

Orifice Diameter

 N/A 0.024 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 9/16 in

Total Length

 N/A 1.48 in

Width Across Flats (Hex) 2

 N/A 9/16 in

N/A

    Compression fittings are used with a metal or rigid plastic tubing. These fittings are used in instrumentation for process control systems. The nature of the connectors allow for easy disassembly and re-assembly without the need for teflon tape or sealants.

N/A

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

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

 N/A 1 psig: 3.26 5 psig: 7.48 10 psig: 11.0 15 psig: 13.6 20 psig: 16.1 25 psig: 18.3 30 psig: 20.7 40 psig: 25.4 50 psig: 30.1 60 psig: 34.7 70 psig: 39.2 80 psig: 43.9 90 psig: 48.5 100 psig: 53.2

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

 N/A 5 In. Hg.: 4.87 10 In. Hg.: 6.12

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

 N/A 15 In. Hg.: 6.61 20 In. Hg.: 6.61 30 In. Hg.: 6.61

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

 N/A 1 psig (6.9 kPag): 1.54 5 psig (34.5 kPag): 3.53 10 psig (69.0 kPag): 5.18 15 psig (103.4 kPag): 6.43 20 psig (137.9 kPag): 7.58 25 psig (172.4 kPag): 8.65 30 psig (206.9 kPag): 9.75 40 psig (275.8 kPag): 12.0 50 psig (344.8 kPag): 14.2 60 psig (413.7 kPag): 16.4 70 psig (482.7 kPag): 18.5 80 psig (551.6 kPag): 20.7 90 psig (620.6 kPag): 22.9 100 psig (689.5 kPag): 25.1

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

 N/A 5 In. Hg. (127 Mm. Hg.): 2.30 10 In. Hg. (254 Mm. Hg.): 2.89

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

 N/A 15 In. Hg. (381 Mm. Hg.): 3.12 20 In. Hg. (508 Mm. Hg.): 3.12 30 In. Hg. (762 Mm. Hg.): 3.12

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.013 2 psig: 0.018 3 psig: 0.023 4 psig: 0.026 5 psig: 0.029 6 psig: 0.032 7 psig: 0.034 8 psig: 0.037 9 psig: 0.039 10 psig: 0.041 15 psig: 0.050 20 psig: 0.058 30 psig: 0.071 40 psig: 0.082 50 psig: 0.092 60 psig: 0.101 70 psig: 0.109 80 psig: 0.116 90 psig: 0.123 100 psig: 0.130

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.049 2 psig (13.8 kPag): 0.070 3 psig (20.7 kPag): 0.085 4 psig (27.6 kPag): 0.098 5 psig (34.5 kPag): 0.110 6 psig (41.4 kPag): 0.110 7 psig (48.3 kPag): 0.130 8 psig (55.2 kPag): 0.139 9 psig (62.1 kPag): 0.148 10 psig (69 kPag): 0.156 15 psig (103.4 kPag): 0.191 20 psig (137.9 kPag): 0.220 30 psig (206.9 kPag): 0.270 40 psig (275.8 kPag): 0.311 50 psig (344.8 kPag): 0.348 60 psig (413.7 kPag): 0.381 70 psig (482.7 kPag): 0.412 80 psig (551.6 kPag): 0.440 90 psig (620.6 kPag): 0.467 100 psig (689.5 kPag): 0.492

Flow Data Status

 N/A Generic