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

FMMCR-15-0-M5-SS-BN N/A 0.38 mm N/A 303 SS N/A 15 N/A N/A 0 psig N/A None
FMMCR-16-0-M5-SS-BN N/A 0.41 mm N/A 303 SS N/A 16 N/A N/A 0 psig N/A None
FMMCR-17-0-M5-SS-BN N/A 0.43 mm N/A 303 SS N/A 17 N/A N/A 0 psig N/A None
FMMCR-18-0-M5-SS-BN N/A 0.46 mm N/A 303 SS N/A 18 N/A N/A 0 psig N/A None
FMMCR-19-0-M5-SS-BN N/A 0.48 mm N/A 303 SS N/A 19 N/A N/A 0 psig N/A None
FMMCR-20-0-M5-SS-BN N/A 0.51 mm N/A 303 SS N/A 20 N/A N/A 0 psig N/A None
FMMCR-21-0-M5-SS-BN N/A 0.53 mm N/A 303 SS N/A 21 N/A N/A 0 psig N/A None
FMMCR-22-0-M5-SS-BN N/A 0.56 mm N/A 303 SS N/A 22 N/A N/A 0 psig N/A None
FMMCR-23-0-M5-SS-BN N/A 0.58 mm N/A 303 SS N/A 23 N/A N/A 0 psig N/A None
FMMCR-24-0-M5-SS-BN N/A 0.61 mm N/A 303 SS N/A 24 N/A N/A 0 psig N/A None
FMMCR-25-0-M5-SS-BN N/A 0.64 mm N/A 303 SS N/A 25 N/A N/A 0 psig N/A None
FMMCR-26-0-M5-SS-BN N/A 0.66 mm N/A 303 SS N/A 26 N/A N/A 0 psig N/A None
FMMCR-27-0-M5-SS-BN N/A 0.69 mm N/A 303 SS N/A 27 N/A N/A 0 psig N/A None
FMMCR-28-0-M5-SS-BN N/A 0.71 mm N/A 303 SS N/A 28 N/A N/A 0 psig N/A None
FMMCR-29-0-M5-SS-BN N/A 0.74 mm N/A 303 SS N/A 29 N/A N/A 0 psig N/A None
FMMCR-4-0-M5-SS-SS N/A 0.1 mm N/A 303 SS N/A 4 N/A N/A 0 psig N/A None
FMMCR-5-0-M5-SS-SS N/A 0.13 mm N/A 303 SS N/A 5 N/A N/A 0 psig N/A None
FMMCR-6-0-M5-SS-SS N/A 0.15 mm N/A 303 SS N/A 6 N/A N/A 0 psig N/A None
FMMCR-7-0-M5-SS-SS N/A 0.18 mm N/A 303 SS N/A 7 N/A N/A 0 psig N/A None
FMMCR-8-0-M5-SS-SS N/A 0.2 mm N/A 303 SS N/A 8 N/A N/A 0 psig N/A None
FMMCR-9-0-M5-SS-SS N/A 0.23 mm N/A 303 SS N/A 9 N/A N/A 0 psig N/A None
FMMCR-10-0-M5-SS-SS N/A 0.25 mm N/A 303 SS N/A 10 N/A N/A 0 psig N/A None
FMMCR-11-0-M5-SS-SS N/A 0.28 mm N/A 303 SS N/A 11 N/A N/A 0 psig N/A None
FMMCR-12-0-M5-SS-SS N/A 0.3 mm N/A 303 SS N/A 12 N/A N/A 0 psig N/A None
FMMCR-13-0-M5-SS-SS N/A 0.33 mm N/A 303 SS N/A 13 N/A N/A 0 psig N/A None
Unit of Measure
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