Part Number K4-9-SS, Precision Metal Orifices - Compression Fittings, Tube Stubs On O'Keefe Controls Co.

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Precision orifice assemblies that adapt to common fittings used in process instruments and hydraulic systems are shown.

Unit of Measure

Orifice Diameter	N/A 0.0091 in
Total Length	N/A 1.75 in
Outside Diameter	N/A 0.250 in

Material	N/A 316 SS
Nominal Orifice Size	N/A 9
C_V	N/A 0.0019
Maximum Operating Pressure	N/A 4000 psig
Connection A	N/A 1/4" OD Tube
Connection B	N/A 1/4" OD Tube
Screened	N/A None

N/A

High Pressure Capability
Bi-directional Flow
Economical Precision Orifice
Repeatable Orifice Size and Shape
Predictable Flow Rate

N/A

Type K4 is a 1/4" OD Tube and is suitable for use with a wide variety of compression fittings.

Air Flow at Pressure - Standard Cu. Ft. Per Hour (SCFH)	N/A 1 psig: 0.479 5 psig: 1.10 10 psig: 1.57 15 psig: 1.97 20 psig: 2.33 25 psig: 2.69 30 psig: 3.03 40 psig: 3.75 50 psig: 4.45 60 psig: 5.13 70 psig: 5.83 80 psig: 6.53 90 psig: 7.20 100 psig: 7.88
Air Flow at Vacuum - Standard Cu. Ft. Per Hour (SCFH)	N/A 5 In. Hg.: 0.703 10 In. Hg.: 0.892
Air Flow at Vacuum, Choked Flow - Standard Cu. Ft. Per Hour (SCFH)	N/A 15 In. Hg.: 0.964 20 In. Hg.: 0.964 30 In. Hg.: 0.964
Air Flow at Pressure - Standard Liters Per Minute (SLPM)	N/A 1 psig (6.9 kPag): 0.226 5 psig (34.5 kPag): 0.52 10 psig (69.0 kPag): 0.74 15 psig (103.4 kPag): 0.93 20 psig (137.9 kPag): 1.10 25 psig (172.4 kPag): 1.27 30 psig (206.9 kPag): 1.43 40 psig (275.8 kPag): 1.77 50 psig (344.8 kPag): 2.10 60 psig (413.7 kPag): 2.42 70 psig (482.7 kPag): 2.75 80 psig (551.6 kPag): 3.08 90 psig (620.6 kPag): 3.40 100 psig (689.5 kPag): 3.72
Air Flow at Vacuum - Standard Liters Per Minute (SLPM)	N/A 5 In. Hg. (127 Mm. Hg.): 0.332 10 In. Hg. (254 Mm. Hg.): 0.421
Air Flow at Vacuum, Choked Flow - Standard Liters Per Minute (SCFH)	N/A 15 In. Hg. (381 Mm. Hg.): 0.455 20 In. Hg. (508 Mm. Hg.): 0.455 30 In. Hg. (762 Mm. Hg.): 0.455
Water Flow - Gallons/minute (GPM)	N/A 1 psig: 0.0019 2 psig: 0.0027 3 psig: 0.0033 4 psig: 0.0038 5 psig: 0.0042 6 psig: 0.0047 7 psig: 0.0050 8 psig: 0.0054 9 psig: 0.0057 10 psig: 0.0060 15 psig: 0.0074 20 psig: 0.0085 30 psig: 0.0104 40 psig: 0.0120 50 psig: 0.0134 60 psig: 0.0147 70 psig: 0.0159 80 psig: 0.0170 90 psig: 0.0180 100 psig: 0.0190
Water Flow - Liters/minute (LPM)	N/A 1 psig (6.9 kPag): 0.0072 2 psig (13.8 kPag): 0.0102 3 psig (20.7 kPag): 0.0125 4 psig (27.6 kPag): 0.0144 5 psig (34.5 kPag): 0.0161 6 psig (41.4 kPag): 0.0161 7 psig (48.3 kPag): 0.0190 8 psig (55.2 kPag): 0.0203 9 psig (62.1 kPag): 0.0216 10 psig (69 kPag): 0.0227 15 psig (103.4 kPag): 0.0279 20 psig (137.9 kPag): 0.0322 30 psig (206.9 kPag): 0.0394 40 psig (275.8 kPag): 0.0455 50 psig (344.8 kPag): 0.0509 60 psig (413.7 kPag): 0.0557 70 psig (482.7 kPag): 0.0602 80 psig (551.6 kPag): 0.0643 90 psig (620.6 kPag): 0.0682 100 psig (689.5 kPag): 0.0719
Flow Data Status	N/A Generic

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