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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 25

CV

 N/A 0.014

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 0.025 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: 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