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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 109

CV

 N/A 0.270

Maximum Operating Pressure

 N/A 4000 psig

Connection A

 N/A SAE 37 DEG #4 7/16"-20 Male

Connection B

 N/A SAE 37 DEG #4 7/16"-20 Female

Screened

 N/A None

Orifice Diameter

 N/A 0.1090 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 9/16 in

Total Length

 N/A 1.14 in

Hex Height

 N/A 0.600 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: 83.9 5 psig: 180 10 psig: 237 15 psig: 286 20 psig: 335 25 psig: 381 30 psig: 432 40 psig: 532 50 psig: 634 60 psig: 735 70 psig: 839 80 psig: 943 90 psig: 1042 100 psig: 1153

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

 N/A 5 In. Hg.: 114 10 In. Hg.: 142

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

 N/A 15 In. Hg.: 148 20 In. Hg.: 148 30 In. Hg.: 148

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

 N/A 1 psig (6.9 kPag): 39.6 5 psig (34.5 kPag): 84.8 10 psig (69.0 kPag): 112 15 psig (103.4 kPag): 135 20 psig (137.9 kPag): 158 25 psig (172.4 kPag): 180 30 psig (206.9 kPag): 204 40 psig (275.8 kPag): 251 50 psig (344.8 kPag): 299 60 psig (413.7 kPag): 347 70 psig (482.7 kPag): 396 80 psig (551.6 kPag): 445 90 psig (620.6 kPag): 492 100 psig (689.5 kPag): 544

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

 N/A 5 In. Hg. (127 Mm. Hg.): 53.9 10 In. Hg. (254 Mm. Hg.): 67.2

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

 N/A 15 In. Hg. (381 Mm. Hg.): 70.1 20 In. Hg. (508 Mm. Hg.): 70.1 30 In. Hg. (762 Mm. Hg.): 70.1

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.270 2 psig: 0.382 3 psig: 0.468 4 psig: 0.540 5 psig: 0.604 6 psig: 0.661 7 psig: 0.714 8 psig: 0.764 9 psig: 0.810 10 psig: 0.854 15 psig: 1.046 20 psig: 1.207 30 psig: 1.479 40 psig: 1.708 50 psig: 1.909 60 psig: 2.091 70 psig: 2.259 80 psig: 2.415 90 psig: 2.561 100 psig: 2.700

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 1.022 2 psig (13.8 kPag): 1.445 3 psig (20.7 kPag): 1.770 4 psig (27.6 kPag): 2.044 5 psig (34.5 kPag): 2.285 6 psig (41.4 kPag): 2.504 7 psig (48.3 kPag): 2.704 8 psig (55.2 kPag): 2.891 9 psig (62.1 kPag): 3.066 10 psig (69 kPag): 3.232 15 psig (103.4 kPag): 3.958 20 psig (137.9 kPag): 4.571 30 psig (206.9 kPag): 5.598 40 psig (275.8 kPag): 6.464 50 psig (344.8 kPag): 7.227 60 psig (413.7 kPag): 7.917 70 psig (482.7 kPag): 8.551 80 psig (551.6 kPag): 9.142 90 psig (620.6 kPag): 9.696 100 psig (689.5 kPag): 10.221

Flow Data Status

 N/A Generic