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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 303 SS

Nominal Orifice Size

 N/A 73

CV

 N/A 0.120

Maximum Operating Pressure

 N/A 4000 psig

Connection A

 N/A SAE 37 DEG #8 3/4"-16 Male

Connection B

 N/A SAE 37 DEG #8 3/4"-16 Female

Screened

 N/A None

Orifice Diameter

 N/A 0.0730 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 7/8 in

Total Length

 N/A 1.36 in

Hex Height

 N/A 0.710 in

N/A

    Type K4 is a 1/4" OD Tube and is suitable for use with a wide variety of compression fittings.Type K2 is for 1/8" OD Tube fittings.Types R4 and RG4 are suitable for use with face seal fittings. Types BFS and CFJ are used in hydraulic circuits, having SAE flare connections.

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: 35.9 5 psig: 76.5 10 psig: 103 15 psig: 125 20 psig: 146 25 psig: 168 30 psig: 190 40 psig: 233 50 psig: 278 60 psig: 320 70 psig: 362 80 psig: 405 90 psig: 447 100 psig: 496

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

 N/A 5 In. Hg.: 50.6 10 In. Hg.: 63.4

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

 N/A 15 In. Hg.: 66.1 20 In. Hg.: 66.1 30 In. Hg.: 66.1

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

 N/A 1 psig (6.9 kPag): 16.9 5 psig (34.5 kPag): 36.1 10 psig (69.0 kPag): 48.5 15 psig (103.4 kPag): 58.8 20 psig (137.9 kPag): 69 25 psig (172.4 kPag): 79.3 30 psig (206.9 kPag): 89.5 40 psig (275.8 kPag): 110 50 psig (344.8 kPag): 131 60 psig (413.7 kPag): 151 70 psig (482.7 kPag): 171 80 psig (551.6 kPag): 191 90 psig (620.6 kPag): 211 100 psig (689.5 kPag): 234

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

 N/A 5 In. Hg. (127 Mm. Hg.): 23.9 10 In. Hg. (254 Mm. Hg.): 29.9

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

 N/A 15 In. Hg. (381 Mm. Hg.): 31.2 20 In. Hg. (508 Mm. Hg.): 31.2 30 In. Hg. (762 Mm. Hg.): 31.2

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.120 2 psig: 0.170 3 psig: 0.208 4 psig: 0.240 5 psig: 0.268 6 psig: 0.294 7 psig: 0.317 8 psig: 0.339 9 psig: 0.360 10 psig: 0.379 15 psig: 0.465 20 psig: 0.537 30 psig: 0.657 40 psig: 0.759 50 psig: 0.849 60 psig: 0.930 70 psig: 1.004 80 psig: 1.073 90 psig: 1.138 100 psig: 1.200

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.454 2 psig (13.8 kPag): 0.642 3 psig (20.7 kPag): 0.787 4 psig (27.6 kPag): 0.908 5 psig (34.5 kPag): 1.016 6 psig (41.4 kPag): 1.113 7 psig (48.3 kPag): 1.202 8 psig (55.2 kPag): 1.285 9 psig (62.1 kPag): 1.363 10 psig (69 kPag): 1.436 15 psig (103.4 kPag): 1.759 20 psig (137.9 kPag): 2.031 30 psig (206.9 kPag): 2.488 40 psig (275.8 kPag): 2.873 50 psig (344.8 kPag): 3.212 60 psig (413.7 kPag): 3.519 70 psig (482.7 kPag): 3.801 80 psig (551.6 kPag): 4.063 90 psig (620.6 kPag): 4.309 100 psig (689.5 kPag): 4.542

Flow Data Status

 N/A Generic