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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    Disk type check valves are available in both brass and stainless steel and are suitable for use with liquids or gases. Free flow occurs in one direction only; reverse flow is prevented.
Check Valves, Disk Type NPT Connection; NPT Adapter, NPT Coupling
Check Valves, Disk Type - NPT Connection; NPT Adapter, NPT Coupling - Line Drawing
Unit of Measure
Items OKC-1262-BR-ORTHO
DOC-0-BR-BR
Check Valves, Disk Type - 1/8" Adapter, Type DOC 		OKC-1262-BR-ORTHO
DOC-0-BR-DE
Check Valves, Disk Type - 1/8" Adapter, Type DOC 		Check Valves, Disk Type NPT Connection; NPT Adapter, NPT Coupling
DOC-0-SS-SS
Check Valves, Disk Type - 1/8" Adapter, Type DOC 		Check Valves, Disk Type NPT Connection; NPT Adapter, NPT Coupling
DOC-0-SS-DE
Check Valves, Disk Type - 1/8" Adapter, Type DOC 		OKC-1262-BR-ORTHO
GOC-0-BR-BR
Check Valves, Disk Type - 1/4" Adapter, Type GOC
Body Material N/A Brass N/A Brass N/A 303 SS N/A 303 SS N/A Brass
Disk Material N/A Brass N/A Delrin N/A 303 SS N/A Delrin N/A Brass
Seal Material N/A Viton
CV N/A 0.43 N/A 0.43 N/A 0.43 N/A 0.43 N/A 0.61
Cracking Pressure N/A 0.25 psig
Maximum Temperature N/A 225 ºF N/A 120 ºF N/A 225 ºF N/A 120 ºF N/A 225 ºF
Maximum Operating Pressure N/A 150 psig
Width Across Flats (Hex) N/A 11/16 in N/A 11/16 in N/A 11/16 in N/A 11/16 in N/A 3/4 in
Total Length N/A 1.72 in N/A 1.72 in N/A 1.72 in N/A 1.72 in N/A 2.11 in
Connection A N/A 1/8" NPT Female N/A 1/8" NPT Female N/A 1/8" NPT Female N/A 1/8" NPT Female N/A 1/4" NPT Female
Connection B N/A 1/8" NPT Male N/A 1/8" NPT Male N/A 1/8" NPT Male N/A 1/8" NPT Male N/A 1/4" NPT Male
Seat Leakage N/A 6 SCCM (max.) air flow at greater than 50 psi differential