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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    The restrictors incorporate a precision synthetic sapphire orifice which is fitted within a main body. The sapphire orifice is a stable, accurate flow restrictor. Standard sizes range from .0012" to .0252" orifice diameter in 32 increments.
Precision Sapphire Orifices 10-32 UNF connections
Precision Sapphire Orifices - 10-32 UNF connections - Line Drawing
Unit of Measure
1 2 

Part Number

Orifice Diameter

Material

CV

Maximum Fitting PRESSURE

Connection A

Screened

P-3-BR N/A 0.0012 in0.03 mm N/A Brass N/A 0.00003 N/A 100 psig N/A Straight Thread N/A None
P-4-BR N/A 0.0016 in0.04 mm N/A Brass N/A 0.000053 N/A 100 psig N/A Straight Thread N/A None
P-5-BR N/A 0.002 in0.05 mm N/A Brass N/A 0.00009 N/A 100 psig N/A Straight Thread N/A None
P-6-BR N/A 0.0024 in0.06 mm N/A Brass N/A 0.00012 N/A 100 psig N/A Straight Thread N/A None
P-7-BR N/A 0.0028 in0.07 mm N/A Brass N/A 0.00017 N/A 100 psig N/A Straight Thread N/A None
P-8-BR N/A 0.0031 in0.08 mm N/A Brass N/A 0.00022 N/A 100 psig N/A Straight Thread N/A None
P-9-BR N/A 0.0035 in0.09 mm N/A Brass N/A 0.00028 N/A 100 psig N/A Straight Thread N/A None
P-10-BR N/A 0.0039 in0.1 mm N/A Brass N/A 0.00035 N/A 100 psig N/A Straight Thread N/A None
P-11-BR N/A 0.0043 in0.11 mm N/A Brass N/A 0.00042 N/A 100 psig N/A Straight Thread N/A None
P-12-BR N/A 0.0047 in0.12 mm N/A Brass N/A 0.0005 N/A 100 psig N/A Straight Thread N/A None
P-13-BR N/A 0.0051 in0.13 mm N/A Brass N/A 0.00061 N/A 100 psig N/A Straight Thread N/A None
P-14-BR N/A 0.0055 in0.14 mm N/A Brass N/A 0.00071 N/A 100 psig N/A Straight Thread N/A None
P-15-BR N/A 0.0059 in0.15 mm N/A Brass N/A 0.00084 N/A 100 psig N/A Straight Thread N/A None
P-16-BR N/A 0.0063 in0.16 mm N/A Brass N/A 0.00094 N/A 100 psig N/A Straight Thread N/A None
P-17-BR N/A 0.0067 in0.17 mm N/A Brass N/A 0.0011 N/A 100 psig N/A Straight Thread N/A None
P-18-BR N/A 0.0071 in0.18 mm N/A Brass N/A 0.0012 N/A 100 psig N/A Straight Thread N/A None
P-20-BR N/A 0.0079 in0.2 mm N/A Brass N/A 0.0015 N/A 100 psig N/A Straight Thread N/A None
P-22-BR N/A 0.0087 in0.22 mm N/A Brass N/A 0.0018 N/A 100 psig N/A Straight Thread N/A None
P-24-BR N/A 0.0094 in0.24 mm N/A Brass N/A 0.0021 N/A 100 psig N/A Straight Thread N/A None
P-26-BR N/A 0.0102 in0.26 mm N/A Brass N/A 0.0024 N/A 100 psig N/A Straight Thread N/A None
P-28-BR N/A 0.011 in0.28 mm N/A Brass N/A 0.0028 N/A 100 psig N/A Straight Thread N/A None
P-30-BR N/A 0.0118 in0.3 mm N/A Brass N/A 0.0032 N/A 100 psig N/A Straight Thread N/A None
P-32-BR N/A 0.0126 in0.32 mm N/A Brass N/A 0.0036 N/A 100 psig N/A Straight Thread N/A None
P-34-BR N/A 0.0134 in0.34 mm N/A Brass N/A 0.004 N/A 100 psig N/A Straight Thread N/A None
P-36-BR N/A 0.0142 in0.36 mm N/A Brass N/A 0.0046 N/A 100 psig N/A Straight Thread N/A None
Unit of Measure
1 2