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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 10

CV

 N/A 0.0025

Maximum Operating Pressure

 N/A 4000 psig

Connection A

 N/A SAE 37 DEG #8 3/4"-16 Male

Connection B

 N/A SAE 37 DEG #8 3/4"-16 Female

Screened

 N/A None

Orifice Diameter

 N/A 0.0102 in

Orifice Diameter Accuracy

 N/A ±0.0005 in

Width Across Flats (Hex)

 N/A 7/8 in

Total Length

 N/A 1.36 in

Hex Height

 N/A 0.710 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: 0.593 5 psig: 1.37 10 psig: 1.97 15 psig: 2.48 20 psig: 2.92 25 psig: 3.37 30 psig: 3.81 40 psig: 4.68 50 psig: 5.55 60 psig: 6.40 70 psig: 7.27 80 psig: 8.12 90 psig: 8.96 100 psig: 9.81

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

 N/A 5 In. Hg.: 0.86 10 In. Hg.: 1.10

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

 N/A 15 In. Hg.: 1.20 20 In. Hg.: 1.20 30 In. Hg.: 1.20

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

 N/A 1 psig (6.9 kPag): 0.280 5 psig (34.5 kPag): 0.65 10 psig (69.0 kPag): 0.93 15 psig (103.4 kPag): 1.17 20 psig (137.9 kPag): 1.38 25 psig (172.4 kPag): 1.59 30 psig (206.9 kPag): 1.80 40 psig (275.8 kPag): 2.21 50 psig (344.8 kPag): 2.62 60 psig (413.7 kPag): 3.02 70 psig (482.7 kPag): 3.43 80 psig (551.6 kPag): 3.83 90 psig (620.6 kPag): 4.23 100 psig (689.5 kPag): 4.63

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

 N/A 5 In. Hg. (127 Mm. Hg.): 0.406 10 In. Hg. (254 Mm. Hg.): 0.519

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

 N/A 15 In. Hg. (381 Mm. Hg.): 0.566 20 In. Hg. (508 Mm. Hg.): 0.566 30 In. Hg. (762 Mm. Hg.): 0.566

Water Flow - Gallons/minute (GPM)

 N/A 1 psig: 0.0025 2 psig: 0.0035 3 psig: 0.0043 4 psig: 0.005 5 psig: 0.0056 6 psig: 0.0061 7 psig: 0.0066 8 psig: 0.0071 9 psig: 0.0075 10 psig: 0.0079 15 psig: 0.0097 20 psig: 0.0112 30 psig: 0.0137 40 psig: 0.0158 50 psig: 0.0177 60 psig: 0.0194 70 psig: 0.0209 80 psig: 0.0224 90 psig: 0.0237 100 psig: 0.0250

Water Flow - Liters/minute (LPM)

 N/A 1 psig (6.9 kPag): 0.0095 2 psig (13.8 kPag): 0.0134 3 psig (20.7 kPag): 0.0164 4 psig (27.6 kPag): 0.0189 5 psig (34.5 kPag): 0.0212 6 psig (41.4 kPag): 0.0212 7 psig (48.3 kPag): 0.0250 8 psig (55.2 kPag): 0.0268 9 psig (62.1 kPag): 0.0284 10 psig (69 kPag): 0.0299 15 psig (103.4 kPag): 0.0367 20 psig (137.9 kPag): 0.0423 30 psig (206.9 kPag): 0.0518 40 psig (275.8 kPag): 0.0599 50 psig (344.8 kPag): 0.0669 60 psig (413.7 kPag): 0.0733 70 psig (482.7 kPag): 0.0792 80 psig (551.6 kPag): 0.0846 90 psig (620.6 kPag): 0.0898 100 psig (689.5 kPag): 0.0946

Flow Data Status

 N/A Generic