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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    Fixed flow controls are a parallel arrangement of a ball check valve and a precision orifice. Free flow occurs in one direction and metered flow occurs in the opposite direction. Suitable for both liquids and gases the fixed flow controls are available in brass or stainless steel.
Fixed Flow Controls, Ball Type NPT Nipple
Fixed Flow Controls, Ball Type - NPT Nipple - Line Drawing
Unit of Measure
Items OKC-1668-BR-ORTHO
BLF-10-0-BR
Fixed Flow Controls - Ball Type NPT Nipple 		OKC-1668-BR-ORTHO
BLF-11-0-BR
Fixed Flow Controls - Ball Type NPT Nipple 		OKC-1668-BR-ORTHO
BLF-13-0-BR
Fixed Flow Controls - Ball Type NPT Nipple 		OKC-1668-BR-ORTHO
BLF-14-0-BR
Fixed Flow Controls - Ball Type NPT Nipple 		OKC-1668-BR-ORTHO
BLF-15-0-BR
Fixed Flow Controls - Ball Type NPT Nipple
Orifice Diameter N/A 0.0102 in N/A 0.011 in N/A 0.013 in N/A 0.0142 in N/A 0.015 in
Material N/A Brass
Ball Material N/A 304 SS
Flow Control Orifice Material N/A
Nominal Orifice Size N/A 10 N/A 11 N/A 13 N/A 14 N/A 15
Cracking Pressure N/A 0 psig
Orifice CV (return) N/A 0.0025 N/A 0.0028 N/A 0.0038 N/A 0.0043 N/A 0.0050
Width Across Flats (Hex) N/A 9/16 in
Total Length N/A 1.4 in
Air Flow at 100 psig N/A 346 to 662 ft³/h
Water Flow at 100 psig N/A 0.8 to 1.6 gpm
Maximum Operating Pressure Gauge N/A 200 psig
Check Valve CV N/A 0.081
Assembly Forward CV N/A 0.084 N/A 0.084 N/A 0.085 N/A 0.085 N/A 0.086
CV Ratio Forward CV Return CV N/A 33.40 N/A 29.93 N/A 22.32 N/A 19.84 N/A 17.20
Connection A N/A 1/8" NPT Male
Connection B N/A 1/8" NPT Male
Screened N/A None