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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    This type precision orifice includes an o-ring for sealing against a flat surface. The set screw style can be installed in fittings, manifolds and custom parts for accurate flow rate control of liquids or gases.
Inch Threaded Inserts, Nose Seals, 6-32 UNC, 10-32 UNF, 1/4"-20 UNC, 5/16"-18 UNC
Inch Threaded Inserts, Nose Seals, 6-32 UNC, 10-32 UNF, 1/4"-20 UNC, 5/16"-18 UNC - Line Drawing
Unit of Measure
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Part Number

Orifice Diameter

Material

CV

Maximum Fitting PRESSURE

Screened

ZNS-25-5/16/18-SS-V N/A 0.025 in N/A 303 SS N/A 0.014 N/A 200 psig N/A None
ZNS-26-5/16/18-SS-V N/A 0.026 in N/A 303 SS N/A 0.016 N/A 200 psig N/A None
ZNS-27-5/16/18-SS-V N/A 0.027 in N/A 303 SS N/A 0.017 N/A 200 psig N/A None
ZNS-28-5/16/18-SS-V N/A 0.028 in N/A 303 SS N/A 0.018 N/A 200 psig N/A None
ZNS-29-5/16/18-SS-V N/A 0.029 in N/A 303 SS N/A 0.019 N/A 200 psig N/A None
ZNS-31-5/16/18-SS-V N/A 0.031 in N/A 303 SS N/A 0.022 N/A 200 psig N/A None
ZNS-32-5/16/18-SS-V N/A 0.032 in N/A 303 SS N/A 0.024 N/A 200 psig N/A None
ZNS-33-5/16/18-SS-V N/A 0.033 in N/A 303 SS N/A 0.025 N/A 200 psig N/A None
ZNS-35-5/16/18-SS-V N/A 0.035 in N/A 303 SS N/A 0.028 N/A 200 psig N/A None
ZNS-37-5/16/18-SS-V N/A 0.037 in N/A 303 SS N/A 0.031 N/A 200 psig N/A None
ZNS-38-5/16/18-SS-V N/A 0.038 in N/A 303 SS N/A 0.032 N/A 200 psig N/A None
ZNS-39-5/16/18-SS-V N/A 0.039 in N/A 303 SS N/A 0.033 N/A 200 psig N/A None
ZNS-40-5/16/18-SS-V N/A 0.04 in N/A 303 SS N/A 0.036 N/A 200 psig N/A None
ZNS-41-5/16/18-SS-V N/A 0.041 in N/A 303 SS N/A 0.038 N/A 200 psig N/A None
ZNS-42-5/16/18-SS-V N/A 0.042 in N/A 303 SS N/A 0.039 N/A 200 psig N/A None
ZNS-43-5/16/18-SS-V N/A 0.043 in N/A 303 SS N/A 0.041 N/A 200 psig N/A None
ZNS-47-5/16/18-SS-V N/A 0.047 in N/A 303 SS N/A 0.048 N/A 200 psig N/A None
ZNS-52-5/16/18-SS-V N/A 0.052 in N/A 303 SS N/A 0.059 N/A 200 psig N/A None
ZNS-55-5/16/18-SS-V N/A 0.055 in N/A 303 SS N/A 0.068 N/A 200 psig N/A None
ZNS-60-5/16/18-SS-V N/A 0.06 in N/A 303 SS N/A 0.081 N/A 200 psig N/A None
ZNS-63-5/16/18-SS-V N/A 0.063 in N/A 303 SS N/A 0.088 N/A 200 psig N/A None
ZNS-67-5/16/18-SS-V N/A 0.0670 in N/A 303 SS N/A 0.100 N/A 200 psig N/A None
ZNS-70-5/16/18-SS-V N/A 0.0700 in N/A 303 SS N/A 0.110 N/A 200 psig N/A None
ZNS-73-5/16/18-SS-V N/A 0.0730 in N/A 303 SS N/A 0.120 N/A 200 psig N/A None
ZNS-76-5/16/18-SS-V N/A 0.0760 in N/A 303 SS N/A 0.130 N/A 200 psig N/A None
Unit of Measure
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