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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 76

CV

 N/A 0.130

Maximum Operating Pressure

 N/A 4000 psig

Connection A

 N/A SAE 37 DEG #6 9/16"-18 Male

Connection B

 N/A SAE 37 DEG #6 9/16"-18 Female

Screened

 N/A None

Orifice Diameter

 N/A 0.0760 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 11/16 in

Total Length

 N/A 1.19 in

Hex Height

 N/A 0.625 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: 39.3 5 psig: 83.5 10 psig: 112 15 psig: 136 20 psig: 160 25 psig: 183 30 psig: 206 40 psig: 254 50 psig: 301 60 psig: 347 70 psig: 394 80 psig: 443 90 psig: 489 100 psig: 540

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

 N/A 5 In. Hg.: 55.1 10 In. Hg.: 68.9

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

 N/A 15 In. Hg.: 71.8 20 In. Hg.: 71.8 30 In. Hg.: 71.8

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

 N/A 1 psig (6.9 kPag): 18.5 5 psig (34.5 kPag): 39.4 10 psig (69.0 kPag): 52.9 15 psig (103.4 kPag): 64 20 psig (137.9 kPag): 75.3 25 psig (172.4 kPag): 86.4 30 psig (206.9 kPag): 97.4 40 psig (275.8 kPag): 120 50 psig (344.8 kPag): 142 60 psig (413.7 kPag): 164 70 psig (482.7 kPag): 186 80 psig (551.6 kPag): 209 90 psig (620.6 kPag): 231 100 psig (689.5 kPag): 255

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

 N/A 5 In. Hg. (127 Mm. Hg.): 26 10 In. Hg. (254 Mm. Hg.): 32.5

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

 N/A 15 In. Hg. (381 Mm. Hg.): 33.9 20 In. Hg. (508 Mm. Hg.): 33.9 30 In. Hg. (762 Mm. Hg.): 33.9

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.130 2 psig: 0.184 3 psig: 0.225 4 psig: 0.260 5 psig: 0.291 6 psig: 0.318 7 psig: 0.344 8 psig: 0.368 9 psig: 0.390 10 psig: 0.411 15 psig: 0.503 20 psig: 0.581 30 psig: 0.712 40 psig: 0.822 50 psig: 0.919 60 psig: 1.007 70 psig: 1.088 80 psig: 1.163 90 psig: 1.233 100 psig: 1.300

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.492 2 psig (13.8 kPag): 0.696 3 psig (20.7 kPag): 0.852 4 psig (27.6 kPag): 0.984 5 psig (34.5 kPag): 1.100 6 psig (41.4 kPag): 1.205 7 psig (48.3 kPag): 1.302 8 psig (55.2 kPag): 1.392 9 psig (62.1 kPag): 1.476 10 psig (69 kPag): 1.556 15 psig (103.4 kPag): 1.906 20 psig (137.9 kPag): 2.201 30 psig (206.9 kPag): 2.695 40 psig (275.8 kPag): 3.112 50 psig (344.8 kPag): 3.480 60 psig (413.7 kPag): 3.812 70 psig (482.7 kPag): 4.117 80 psig (551.6 kPag): 4.401 90 psig (620.6 kPag): 4.668 100 psig (689.5 kPag): 4.921

Flow Data Status

 N/A Generic