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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    These checked orifices consist of a precision orifice in a series with a ball check valve. The flow rate of the restricted flow is set by the orifice size. Reverse flow is checked by the ball. The assembly provides a selectable flow rate in one direction and checked flow in the opposite direction.
Checked Orifices, Adapter
Checked Orifices, Adapter - Line Drawing
Unit of Measure
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Part Number

Orifice Diameter

Material

CV

Maximum Fitting PRESSURE

DIFFERENTIAL CRACK PRESSURE

Screened

FMCR-18-0-10/32-SS-SS N/A 0.018 in N/A 303 SS N/A 0.005 N/A 125 psig N/A 0 psig N/A None
FMCR-19-0-10/32-SS-SS N/A 0.019 in N/A 303 SS N/A 0.008 N/A 125 psig N/A 0 psig N/A None
FMCR-20-0-10/32-SS-SS N/A 0.02 in N/A 303 SS N/A 0.009 N/A 125 psig N/A 0 psig N/A None
FMCR-21-0-10/32-SS-SS N/A 0.021 in N/A 303 SS N/A 0.01 N/A 125 psig N/A 0 psig N/A None
FMCR-22-0-10/32-SS-SS N/A 0.022 in N/A 303 SS N/A 0.011 N/A 125 psig N/A 0 psig N/A None
FMCR-23-0-10/32-SS-SS N/A 0.023 in N/A 303 SS N/A 0.012 N/A 125 psig N/A 0 psig N/A None
FMCR-24-0-10/32-SS-SS N/A 0.024 in N/A 303 SS N/A 0.013 N/A 125 psig N/A 0 psig N/A None
FMCR-25-0-10/32-SS-SS N/A 0.025 in N/A 303 SS N/A 0.014 N/A 125 psig N/A 0 psig N/A None
FMCR-26-0-10/32-SS-SS N/A 0.026 in N/A 303 SS N/A 0.016 N/A 125 psig N/A 0 psig N/A None
FMCR-27-0-10/32-SS-SS N/A 0.027 in N/A 303 SS N/A 0.017 N/A 125 psig N/A 0 psig N/A None
FMCR-28-0-10/32-SS-SS N/A 0.028 in N/A 303 SS N/A 0.018 N/A 125 psig N/A 0 psig N/A None
FMCR-29-0-10/32-SS-SS N/A 0.029 in N/A 303 SS N/A 0.019 N/A 125 psig N/A 0 psig N/A None
FMCR-30-0-10/32-SS-SS N/A 0.030 in N/A 303 SS N/A 0.02 N/A 125 psig N/A 0 psig N/A None
FMMCR-4-0-M5-BR-BN N/A 0.1 mm N/A Brass N/A 4 N/A N/A 0 psig N/A None
FMMCR-5-0-M5-BR-BN N/A 0.13 mm N/A Brass N/A 5 N/A N/A 0 psig N/A None
FMMCR-6-0-M5-BR-BN N/A 0.15 mm N/A Brass N/A 6 N/A N/A 0 psig N/A None
FMMCR-7-0-M5-BR-BN N/A 0.18 mm N/A Brass N/A 7 N/A N/A 0 psig N/A None
FMMCR-8-0-M5-BR-BN N/A 0.2 mm N/A Brass N/A 8 N/A N/A 0 psig N/A None
FMMCR-9-0-M5-BR-BN N/A 0.23 mm N/A Brass N/A 9 N/A N/A 0 psig N/A None
FMMCR-10-0-M5-BR-BN N/A 0.25 mm N/A Brass N/A 10 N/A N/A 0 psig N/A None
FMMCR-11-0-M5-BR-BN N/A 0.28 mm N/A Brass N/A 11 N/A N/A 0 psig N/A None
FMMCR-12-0-M5-BR-BN N/A 0.3 mm N/A Brass N/A 12 N/A N/A 0 psig N/A None
FMMCR-13-0-M5-BR-BN N/A 0.33 mm N/A Brass N/A 13 N/A N/A 0 psig N/A None
FMMCR-14-0-M5-BR-BN N/A 0.36 mm N/A Brass N/A 14 N/A N/A 0 psig N/A None
FMMCR-15-0-M5-BR-BN N/A 0.38 mm N/A Brass N/A 15 N/A N/A 0 psig N/A None
Unit of Measure
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