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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 47

CV

 N/A 0.048

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 0.047 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: 13.60 5 psig: 30.1 10 psig: 41.0 15 psig: 50.0 20 psig: 58.7 25 psig: 67.6 30 psig: 76.3 40 psig: 94.3 50 psig: 112 60 psig: 130 70 psig: 148 80 psig: 167 90 psig: 185 100 psig: 203

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

 N/A 5 In. Hg.: 19.2 10 In. Hg.: 23.6

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

 N/A 15 In. Hg.: 24.5 20 In. Hg.: 24.5 30 In. Hg.: 24.5

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

 N/A 1 psig (6.9 kPag): 6.43 5 psig (34.5 kPag): 14.2 10 psig (69.0 kPag): 19.4 15 psig (103.4 kPag): 23.6 20 psig (137.9 kPag): 27.7 25 psig (172.4 kPag): 31.9 30 psig (206.9 kPag): 36 40 psig (275.8 kPag): 44.5 50 psig (344.8 kPag): 52.9 60 psig (413.7 kPag): 61.5 70 psig (482.7 kPag): 70 80 psig (551.6 kPag): 78.6 90 psig (620.6 kPag): 87.2 100 psig (689.5 kPag): 95.8

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

 N/A 5 In. Hg. (127 Mm. Hg.): 9.08 10 In. Hg. (254 Mm. Hg.): 11.1

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

 N/A 15 In. Hg. (381 Mm. Hg.): 11.6 20 In. Hg. (508 Mm. Hg.): 11.6 30 In. Hg. (762 Mm. Hg.): 11.6

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.048 2 psig: 0.068 3 psig: 0.083 4 psig: 0.096 5 psig: 0.107 6 psig: 0.118 7 psig: 0.127 8 psig: 0.136 9 psig: 0.144 10 psig: 0.152 15 psig: 0.186 20 psig: 0.215 30 psig: 0.263 40 psig: 0.304 50 psig: 0.339 60 psig: 0.372 70 psig: 0.402 80 psig: 0.429 90 psig: 0.455 100 psig: 0.480

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.182 2 psig (13.8 kPag): 0.257 3 psig (20.7 kPag): 0.315 4 psig (27.6 kPag): 0.363 5 psig (34.5 kPag): 0.406 6 psig (41.4 kPag): 0.445 7 psig (48.3 kPag): 0.481 8 psig (55.2 kPag): 0.514 9 psig (62.1 kPag): 0.545 10 psig (69 kPag): 0.575 15 psig (103.4 kPag): 0.704 20 psig (137.9 kPag): 0.813 30 psig (206.9 kPag): 0.995 40 psig (275.8 kPag): 1.149 50 psig (344.8 kPag): 1.285 60 psig (413.7 kPag): 1.407 70 psig (482.7 kPag): 1.520 80 psig (551.6 kPag): 1.625 90 psig (620.6 kPag): 1.724 100 psig (689.5 kPag): 1.817

Flow Data Status

 N/A Generic