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

Material

 N/A Brass

Nominal Orifice Size

 N/A 29

CV

 N/A 0.019

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

Orifice Diameter

 N/A 0.029 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

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.

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: 5.06 5 psig: 11.3 10 psig: 16.6 15 psig: 20.3 20 psig: 23.7 25 psig: 27.1 30 psig: 30.5 40 psig: 37.1 50 psig: 43.9 60 psig: 50.4 70 psig: 57.2 80 psig: 64.0 90 psig: 71.0 100 psig: 78.0

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

 N/A 5 In. Hg.: 7.23 10 In. Hg.: 9.11

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

 N/A 15 In. Hg.: 9.56 20 In. Hg.: 9.56 30 In. Hg.: 9.56

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

 N/A 1 psig (6.9 kPag): 2.39 5 psig (34.5 kPag): 5.31 10 psig (69.0 kPag): 7.83 15 psig (103.4 kPag): 9.58 20 psig (137.9 kPag): 11.2 25 psig (172.4 kPag): 12.8 30 psig (206.9 kPag): 14.4 40 psig (275.8 kPag): 17.5 50 psig (344.8 kPag): 20.7 60 psig (413.7 kPag): 23.8 70 psig (482.7 kPag): 27.0 80 psig (551.6 kPag): 30.2 90 psig (620.6 kPag): 33.5 100 psig (689.5 kPag): 36.8

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

 N/A 5 In. Hg. (127 Mm. Hg.): 3.41 10 In. Hg. (254 Mm. Hg.): 4.30

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

 N/A 15 In. Hg. (381 Mm. Hg.): 4.51 20 In. Hg. (508 Mm. Hg.): 4.51 30 In. Hg. (762 Mm. Hg.): 4.51

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.019 2 psig: 0.027 3 psig: 0.033 4 psig: 0.038 5 psig: 0.042 6 psig: 0.047 7 psig: 0.050 8 psig: 0.054 9 psig: 0.057 10 psig: 0.060 15 psig: 0.074 20 psig: 0.085 30 psig: 0.104 40 psig: 0.120 50 psig: 0.134 60 psig: 0.147 70 psig: 0.159 80 psig: 0.170 90 psig: 0.180 100 psig: 0.190

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.072 2 psig (13.8 kPag): 0.102 3 psig (20.7 kPag): 0.125 4 psig (27.6 kPag): 0.144 5 psig (34.5 kPag): 0.161 6 psig (41.4 kPag): 0.161 7 psig (48.3 kPag): 0.190 8 psig (55.2 kPag): 0.203 9 psig (62.1 kPag): 0.216 10 psig (69 kPag): 0.227 15 psig (103.4 kPag): 0.279 20 psig (137.9 kPag): 0.322 30 psig (206.9 kPag): 0.394 40 psig (275.8 kPag): 0.455 50 psig (344.8 kPag): 0.509 60 psig (413.7 kPag): 0.557 70 psig (482.7 kPag): 0.602 80 psig (551.6 kPag): 0.643 90 psig (620.6 kPag): 0.682 100 psig (689.5 kPag): 0.719

Flow Data Status

 N/A Generic