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-41-1/4/20-BR-V N/A 0.041 in N/A Brass N/A 0.038 N/A 200 psig N/A None
ZNS-42-1/4/20-BR-V N/A 0.042 in N/A Brass N/A 0.039 N/A 200 psig N/A None
ZNS-43-1/4/20-BR-V N/A 0.043 in N/A Brass N/A 0.041 N/A 200 psig N/A None
ZNS-47-1/4/20-BR-V N/A 0.047 in N/A Brass N/A 0.048 N/A 200 psig N/A None
ZNS-52-1/4/20-BR-V N/A 0.052 in N/A Brass N/A 0.059 N/A 200 psig N/A None
ZNS-55-1/4/20-BR-V N/A 0.055 in N/A Brass N/A 0.068 N/A 200 psig N/A None
ZNS-60-1/4/20-BR-V N/A 0.06 in N/A Brass N/A 0.081 N/A 200 psig N/A None
ZNS-63-1/4/20-BR-V N/A 0.063 in N/A Brass N/A 0.088 N/A 200 psig N/A None
ZNS-67-1/4/20-BR-V N/A 0.0670 in N/A Brass N/A 0.100 N/A 200 psig N/A None
ZNS-70-1/4/20-BR-V N/A 0.0700 in N/A Brass N/A 0.110 N/A 200 psig N/A None
ZNS-73-1/4/20-BR-V N/A 0.0730 in N/A Brass N/A 0.120 N/A 200 psig N/A None
ZNS-76-1/4/20-BR-V N/A 0.0760 in N/A Brass N/A 0.130 N/A 200 psig N/A None
ZNS-79-1/4/20-BR-V N/A 0.0790 in N/A Brass N/A 0.140 N/A 200 psig N/A None
ZNS-81-1/4/20-BR-V N/A 0.0810 in N/A Brass N/A 0.150 N/A 200 psig N/A None
ZNS-4-5/16/18-BR-V N/A 0.0039 in N/A Brass N/A 0.00035 N/A 200 psig N/A None
ZNS-5-5/16/18-BR-V N/A 0.0051 in N/A Brass N/A 0.00061 N/A 200 psig N/A None
ZNS-6-5/16/18-BR-V N/A 0.0059 in N/A Brass N/A 0.00086 N/A 200 psig N/A None
ZNS-7-5/16/18-BR-V N/A 0.0071 in N/A Brass N/A 0.0012 N/A 200 psig N/A None
ZNS-8-5/16/18-BR-V N/A 0.0079 in N/A Brass N/A 0.0015 N/A 200 psig N/A None
ZNS-9-5/16/18-BR-V N/A 0.0091 in N/A Brass N/A 0.0019 N/A 200 psig N/A None
ZNS-10-5/16/18-BR-V N/A 0.0102 in N/A Brass N/A 0.0025 N/A 200 psig N/A None
ZNS-11-5/16/18-BR-V N/A 0.011 in N/A Brass N/A 0.0028 N/A 200 psig N/A None
ZNS-12-5/16/18-BR-V N/A 0.0122 in N/A Brass N/A 0.0034 N/A 200 psig N/A None
ZNS-13-5/16/18-BR-V N/A 0.013 in N/A Brass N/A 0.0038 N/A 200 psig N/A None
ZNS-14-5/16/18-BR-V N/A 0.0142 in N/A Brass N/A 0.0043 N/A 200 psig N/A None
Unit of Measure
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