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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    The restrictors incorporate a precision synthetic sapphire orifice which is fitted within a main body. The sapphire orifice is a stable, accurate flow restrictor. Standard sizes range from .0012" to .0252" orifice diameter in 32 increments.
Precision Sapphire Orifices Barb x NPT thread
Precision Sapphire Orifices - Barb x NPT thread - Line Drawing
Unit of Measure
Items Precision Sapphire Orifices Barb x NPT thread
BTF-3-SS
Precision Sapphire Orifices - Barb x NPT thread 		Precision Sapphire Orifices Barb x NPT thread
BTF-4-SS
Precision Sapphire Orifices - Barb x NPT thread 		Precision Sapphire Orifices Barb x NPT thread
BTF-5-SS
Precision Sapphire Orifices - Barb x NPT thread 		Precision Sapphire Orifices Barb x NPT thread
BTF-6-SS
Precision Sapphire Orifices - Barb x NPT thread 		Precision Sapphire Orifices Barb x NPT thread
BTF-7-SS
Precision Sapphire Orifices - Barb x NPT thread
Orifice Material N/A Sapphire/Nylon Sleeve
Seal Material N/A
Orifice Diameter N/A 0.0012 in N/A 0.0016 in N/A 0.002 in N/A 0.0024 in N/A 0.0028 in
Material N/A 303 SS
Nominal Orifice Size N/A 3 N/A 4 N/A 5 N/A 6 N/A 7
CV N/A 0.00003 N/A 0.000053 N/A 0.00009 N/A 0.00012 N/A 0.00017
Orifice Diameter Accuracy N/A ±0.0003 in
Maximum Operating Pressure N/A 100 psig
Width Across Flats (Hex) N/A 7/16 in
Total Length N/A 0.875 in
Connection A N/A 1/8" NPT Male
Connection B N/A 1/16" ID Barb
Screened N/A None