Part Number W-39-SS, Precision Metal Orifices - Dual Barb, 1/16" & 1/8" On O'Keefe Controls Co.

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One-piece construction of solid metal is employed. Orifices are accurately machined, thoroughly cleaned, and flow tested to exacting standards. Sizes range from .004" to .063" orifice diameter. Special sizes can be made to order.

Unit of Measure

Material	N/A 303 SS
Nominal Orifice Size	N/A 39
C_V	N/A 0.033
Maximum Operating Pressure	N/A 100 psig
Connection A	N/A 1/8" ID Barb
Connection B	N/A 1/8" ID Barb
Screened	N/A None

Orifice Diameter	N/A 0.039 in
Orifice Diameter Accuracy	N/A ±0.0005 in
Width Across Flats (Hex)	N/A 1/4 in
Total Length	N/A 0.800 in

N/A

Precision Flow Control - Gases or Liquids
Speed Controls - Cylinders and Actuators
Accurate Timing in Pneumatic or Hydraulic Circuits
Flow Restriction
Accurate Throttling
Snubbers - Gages and Instruments

Air Flow at Pressure - Standard Cu. Ft. Per Hour (SCFH)	N/A 1 psig: 9.45 5 psig: 20.6 10 psig: 28.8 15 psig: 35.4 20 psig: 41.5 25 psig: 47.9 30 psig: 54.2 40 psig: 67.0 50 psig: 79.7 60 psig: 92.8 70 psig: 106 80 psig: 119 90 psig: 132 100 psig: 146
Air Flow at Vacuum - Standard Cu. Ft. Per Hour (SCFH)	N/A 5 In. Hg.: 13.3 10 In. Hg.: 16.6
Air Flow at Vacuum, Choked Flow - Standard Cu. Ft. Per Hour (SCFH)	N/A 15 In. Hg.: 17.4 20 In. Hg.: 17.4 30 In. Hg.: 17.4
Air Flow at Pressure - Standard Liters Per Minute (SLPM)	N/A 1 psig (6.9 kPag): 4.46 5 psig (34.5 kPag): 9.7 10 psig (69.0 kPag): 13.6 15 psig (103.4 kPag): 16.7 20 psig (137.9 kPag): 19.6 25 psig (172.4 kPag): 22.6 30 psig (206.9 kPag): 25.6 40 psig (275.8 kPag): 31.6 50 psig (344.8 kPag): 37.6 60 psig (413.7 kPag): 43.8 70 psig (482.7 kPag): 50 80 psig (551.6 kPag): 56.2 90 psig (620.6 kPag): 62.4 100 psig (689.5 kPag): 68.7
Air Flow at Vacuum - Standard Liters Per Minute (SLPM)	N/A 5 In. Hg. (127 Mm. Hg.): 6.29 10 In. Hg. (254 Mm. Hg.): 7.85
Air Flow at Vacuum, Choked Flow - Standard Liters Per Minute (SCFH)	N/A 15 In. Hg. (381 Mm. Hg.): 8.22 20 In. Hg. (508 Mm. Hg.): 8.22 30 In. Hg. (762 Mm. Hg.): 8.22
Water Flow - Gallons/minute (GPM)	N/A 1 psig: 0.033 2 psig: 0.047 3 psig: 0.057 4 psig: 0.066 5 psig: 0.074 6 psig: 0.081 7 psig: 0.087 8 psig: 0.093 9 psig: 0.099 10 psig: 0.104 15 psig: 0.128 20 psig: 0.148 30 psig: 0.181 40 psig: 0.209 50 psig: 0.233 60 psig: 0.256 70 psig: 0.276 80 psig: 0.295 90 psig: 0.313 100 psig: 0.330
Water Flow - Liters/minute (LPM)	N/A 1 psig (6.9 kPag): 0.125 2 psig (13.8 kPag): 0.177 3 psig (20.7 kPag): 0.216 4 psig (27.6 kPag): 0.250 5 psig (34.5 kPag): 0.279 6 psig (41.4 kPag): 0.306 7 psig (48.3 kPag): 0.331 8 psig (55.2 kPag): 0.353 9 psig (62.1 kPag): 0.375 10 psig (69 kPag): 0.395 15 psig (103.4 kPag): 0.484 20 psig (137.9 kPag): 0.559 30 psig (206.9 kPag): 0.684 40 psig (275.8 kPag): 0.79 50 psig (344.8 kPag): 0.883 60 psig (413.7 kPag): 0.968 70 psig (482.7 kPag): 1.045 80 psig (551.6 kPag): 1.117 90 psig (620.6 kPag): 1.185 100 psig (689.5 kPag): 1.249
Flow Data Status	N/A Generic

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