Part Number FF-37-SS, Precision Metal Orifices - 10-32 UNF Coupler On O'Keefe Controls Co.

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Orifices are accurately machined, thoroughly cleaned, and flow tested to exacting standards. Sizes range from .004" to as large as .063" orifice diameter. Special sizes can be made to order.

Unit of Measure

Material	N/A 303 SS
Nominal Orifice Size	N/A 37
C_V	N/A 0.031
Maximum Operating Pressure	N/A 100 psig
Connection A	N/A 10-32 UNF Female
Connection B	N/A 10-32 UNF Female
Screened	N/A None

Orifice Diameter	N/A 0.037 in
Orifice Diameter Accuracy	N/A ±0.0005 in
Total Length	N/A 0.50 in
Outside Diameter	N/A 0.312 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: 8.12 5 psig: 18.0 10 psig: 25.0 15 psig: 30.7 20 psig: 36.0 25 psig: 41.5 30 psig: 47.0 40 psig: 58.1 50 psig: 69.1 60 psig: 80.5 70 psig: 91.7 80 psig: 103 90 psig: 115 100 psig: 126
Air Flow at Vacuum - Standard Cu. Ft. Per Hour (SCFH)	N/A 5 In. Hg.: 11.4 10 In. Hg.: 14.4
Air Flow at Vacuum, Choked Flow - Standard Cu. Ft. Per Hour (SCFH)	N/A 15 In. Hg.: 15.2 20 In. Hg.: 15.2 30 In. Hg.: 15.2
Air Flow at Pressure - Standard Liters Per Minute (SLPM)	N/A 1 psig (6.9 kPag): 3.83 5 psig (34.5 kPag): 8.48 10 psig (69.0 kPag): 11.8 15 psig (103.4 kPag): 14.5 20 psig (137.9 kPag): 17 25 psig (172.4 kPag): 19.6 30 psig (206.9 kPag): 22.2 40 psig (275.8 kPag): 27.4 50 psig (344.8 kPag): 32.6 60 psig (413.7 kPag): 38 70 psig (482.7 kPag): 43.3 80 psig (551.6 kPag): 48.7 90 psig (620.6 kPag): 54.2 100 psig (689.5 kPag): 59.6
Air Flow at Vacuum - Standard Liters Per Minute (SLPM)	N/A 5 In. Hg. (127 Mm. Hg.): 5.4 10 In. Hg. (254 Mm. Hg.): 6.78
Air Flow at Vacuum, Choked Flow - Standard Liters Per Minute (SCFH)	N/A 15 In. Hg. (381 Mm. Hg.): 7.17 20 In. Hg. (508 Mm. Hg.): 7.17 30 In. Hg. (762 Mm. Hg.): 7.17
Water Flow - Gallons/minute (GPM)	N/A 1 psig: 0.031 2 psig: 0.044 3 psig: 0.054 4 psig: 0.062 5 psig: 0.069 6 psig: 0.076 7 psig: 0.082 8 psig: 0.088 9 psig: 0.093 10 psig: 0.098 15 psig: 0.120 20 psig: 0.139 30 psig: 0.170 40 psig: 0.196 50 psig: 0.219 60 psig: 0.240 70 psig: 0.259 80 psig: 0.277 90 psig: 0.294 100 psig: 0.310
Water Flow - Liters/minute (LPM)	N/A 1 psig (6.9 kPag): 0.117 2 psig (13.8 kPag): 0.166 3 psig (20.7 kPag): 0.203 4 psig (27.6 kPag): 0.235 5 psig (34.5 kPag): 0.262 6 psig (41.4 kPag): 0.287 7 psig (48.3 kPag): 0.310 8 psig (55.2 kPag): 0.332 9 psig (62.1 kPag): 0.352 10 psig (69 kPag): 0.371 15 psig (103.4 kPag): 0.454 20 psig (137.9 kPag): 0.525 30 psig (206.9 kPag): 0.643 40 psig (275.8 kPag): 0.742 50 psig (344.8 kPag): 0.83 60 psig (413.7 kPag): 0.909 70 psig (482.7 kPag): 0.982 80 psig (551.6 kPag): 1.050 90 psig (620.6 kPag): 1.113 100 psig (689.5 kPag): 1.173
Flow Data Status	N/A Generic

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