O’Keefe Controls Co.
O’Keefe Controls Co.
4 Maple Drive
Monroe, CT 06468
Phone: 203.261.6711
Email: info@okeefecontrols.com • Website: www.okeefecontrols.com
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    Checked orifices are a series arrangement of a precision orifice, a ball check valve and an optional screen. The all metal assemblies are made of brass or stainless steel. Gas or liquid can flow in one direction only, at a rate established by the metering orifice. Reverse pressure differential does not result in reverse flow. Standard sizes are 10-32, 1/8" NPT and 1/4" NPT. Custom requirements will be reviewed for large quantity applications.
Checked Orifices, Ball Type, Coupling
Check Valves, Ball Type - 10-32 UNF Connection; Coupling, Adapter - Line Drawing
Unit of Measure
Items Checked Orifices, Ball Type, Coupling
FIFLC-10-0-BR
Checked Orifices, Ball Type, Coupling 		Checked Orifices, Ball Type, Coupling
FIFLC-11-0-BR
Checked Orifices, Ball Type, Coupling 		Checked Orifices, Ball Type, Coupling
FIFLC-12-0-BR
Checked Orifices, Ball Type, Coupling 		Checked Orifices, Ball Type, Coupling
FIFLC-13-0-BR
Checked Orifices, Ball Type, Coupling 		Checked Orifices, Ball Type, Coupling
FIFLC-14-0-BR
Checked Orifices, Ball Type, Coupling
Orifice Diameter N/A 0.0102 in N/A 0.011 in N/A 0.0122 in N/A 0.013 in N/A 0.0142 in
Material N/A Brass
Nominal Orifice Size N/A 10 N/A 11 N/A 12 N/A 13 N/A 14
CV N/A 0.0025 N/A 0.0028 N/A 0.0034 N/A 0.0038 N/A 0.0043
Ball Material N/A 304 SS
Maximum Temperature N/A 300 ºF
Maximum Operating Pressure N/A 200 psig
Cracking Pressure N/A 0 psig
Total Length N/A 0.78 in
Air Flow at 25 psig N/A 3.37 ft³/h N/A 3.62 ft³/h N/A 4.66 ft³/h N/A 5.3 ft³/h N/A 6.06 ft³/h
Air Flow at 100 psig N/A 9.81 ft³/h N/A 10.5 ft³/h N/A 13.4 ft³/h N/A 15.3 ft³/h N/A 17.4 ft³/h
Connection A N/A 10-32 UNF Female
Connection B N/A 10-32 UNF Female
Screened N/A None