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    Precision orifice assemblies that adapt to common fittings used in process instruments and hydraulic systems are shown. Types K4, R4 and RG4 are used with nominal 1/4" tube fittings. Type BFS is for 45° flare fittings and Type CFJ is for 37° flare fittings. Type OD is a pipe adapter.
Unit of Measure

Orifice Diameter

 N/A 0.013 in

Outside Diameter

 N/A 0.50 in

Width

 N/A 0.030 in

Material

 N/A 316 SS

Nominal Orifice Size

 N/A 13

CV

 N/A 0.0038

Finish

 N/A Silver Plated

Maximum Operating Pressure

 N/A 100 psig

Connection A

 N/A 1/4" Face Seal

N/A

  • Types R4 and RG4 are suitable for use with face seal fittings.

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: 0.962 5 psig: 2.25 10 psig: 3.14 15 psig: 3.92 20 psig: 4.64 25 psig: 5.30 30 psig: 5.98 40 psig: 7.31 50 psig: 8.62 60 psig: 10.0 70 psig: 11.3 80 psig: 12.6 90 psig: 13.9 100 psig: 15.3

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

 N/A 5 In. Hg.: 1.4 10 In. Hg.: 1.77

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

 N/A 15 In. Hg.: 1.91 20 In. Hg.: 1.91 30 In. Hg.: 1.91

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

 N/A 1 psig (6.9 kPag): 0.45 5 psig (34.5 kPag): 1.06 10 psig (69.0 kPag): 1.48 15 psig (103.4 kPag): 1.85 20 psig (137.9 kPag): 2.19 25 psig (172.4 kPag): 2.50 30 psig (206.9 kPag): 2.82 40 psig (275.8 kPag): 3.45 50 psig (344.8 kPag): 4.07 60 psig (413.7 kPag): 4.70 70 psig (482.7 kPag): 5.32 80 psig (551.6 kPag): 5.95 90 psig (620.6 kPag): 6.58 100 psig (689.5 kPag): 7.22

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

 N/A 5 In. Hg. (127 Mm. Hg.): 0.661 10 In. Hg. (254 Mm. Hg.): 0.834

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

 N/A 15 In. Hg. (381 Mm. Hg.): 0.902 20 In. Hg. (508 Mm. Hg.): 0.902 30 In. Hg. (762 Mm. Hg.): 0.902

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.0038 2 psig: 0.0054 3 psig: 0.0066 4 psig: 0.0076 5 psig: 0.0085 6 psig: 0.0093 7 psig: 0.0101 8 psig: 0.0107 9 psig: 0.0114 10 psig: 0.0120 15 psig: 0.0147 20 psig: 0.0170 30 psig: 0.0208 40 psig: 0.0240 50 psig: 0.0269 60 psig: 0.0294 70 psig: 0.0318 80 psig: 0.0340 90 psig: 0.0360 100 psig: 0.0380

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.0144 2 psig (13.8 kPag): 0.0203 3 psig (20.7 kPag): 0.0249 4 psig (27.6 kPag): 0.0288 5 psig (34.5 kPag): 0.0322 6 psig (41.4 kPag): 0.0322 7 psig (48.3 kPag): 0.0381 8 psig (55.2 kPag): 0.0407 9 psig (62.1 kPag): 0.0432 10 psig (69 kPag): 0.0455 15 psig (103.4 kPag): 0.0557 20 psig (137.9 kPag): 0.0643 30 psig (206.9 kPag): 0.0788 40 psig (275.8 kPag): 0.0910 50 psig (344.8 kPag): 0.1017 60 psig (413.7 kPag): 0.1114 70 psig (482.7 kPag): 0.1203 80 psig (551.6 kPag): 0.1287 90 psig (620.6 kPag): 0.1365 100 psig (689.5 kPag): 0.1438

Flow Data Status

 N/A Generic