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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 70

CV

 N/A 0.110

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 0.0700 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: 33.6 5 psig: 71.6 10 psig: 96.6 15 psig: 117 20 psig: 138 25 psig: 158 30 psig: 179 40 psig: 220 50 psig: 261 60 psig: 301 70 psig: 343 80 psig: 384 90 psig: 424 100 psig: 468

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

 N/A 5 In. Hg.: 47.7 10 In. Hg.: 57.6

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

 N/A 15 In. Hg.: 60.2 20 In. Hg.: 60.2 30 In. Hg.: 60.2

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

 N/A 1 psig (6.9 kPag): 15.9 5 psig (34.5 kPag): 33.8 10 psig (69.0 kPag): 45.6 15 psig (103.4 kPag): 55.3 20 psig (137.9 kPag): 65 25 psig (172.4 kPag): 74.7 30 psig (206.9 kPag): 84.3 40 psig (275.8 kPag): 104 50 psig (344.8 kPag): 123 60 psig (413.7 kPag): 142 70 psig (482.7 kPag): 162 80 psig (551.6 kPag): 181 90 psig (620.6 kPag): 200 100 psig (689.5 kPag): 221

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

 N/A 5 In. Hg. (127 Mm. Hg.): 22.5 10 In. Hg. (254 Mm. Hg.): 27.2

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

 N/A 15 In. Hg. (381 Mm. Hg.): 28.4 20 In. Hg. (508 Mm. Hg.): 28.4 30 In. Hg. (762 Mm. Hg.): 28.4

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.110 2 psig: 0.156 3 psig: 0.191 4 psig: 0.220 5 psig: 0.246 6 psig: 0.269 7 psig: 0.291 8 psig: 0.311 9 psig: 0.330 10 psig: 0.348 15 psig: 0.426 20 psig: 0.492 30 psig: 0.602 40 psig: 0.696 50 psig: 0.778 60 psig: 0.852 70 psig: 0.920 80 psig: 0.984 90 psig: 1.044 100 psig: 1.100

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.416 2 psig (13.8 kPag): 0.589 3 psig (20.7 kPag): 0.721 4 psig (27.6 kPag): 0.833 5 psig (34.5 kPag): 0.931 6 psig (41.4 kPag): 1.020 7 psig (48.3 kPag): 1.102 8 psig (55.2 kPag): 1.178 9 psig (62.1 kPag): 1.249 10 psig (69 kPag): 1.317 15 psig (103.4 kPag): 1.613 20 psig (137.9 kPag): 1.862 30 psig (206.9 kPag): 2.281 40 psig (275.8 kPag): 2.634 50 psig (344.8 kPag): 2.944 60 psig (413.7 kPag): 3.225 70 psig (482.7 kPag): 3.484 80 psig (551.6 kPag): 3.724 90 psig (620.6 kPag): 3.95 100 psig (689.5 kPag): 4.164

Flow Data Status

 N/A Generic