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Parker CPI™/A-LOK® Instrumentation Tube Fittings are designed as leak-free connections for process, power and instrumentation applications. The CPI tube fittings utilize a single ferrule for easy make-up and excellent performance in vibration applications. The “spring loaded” effect of the single ferrule creates a constant tension between the fitting body and fitting nut. The A-LOK two ferrule compression tube fittings are designed to provide reliable leak-free connections for applications that specify a two ferrule system. These single and two ferrule fitting designs are manufactured to the highest quality standards and are available in a broad range of sizes, materials and configurations.

NOTE:
  • Dimensions for reference only, subject to change.
  • Low dead volume fitting adapter for connection to compression fitting tubes.
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    Unit of Measure
    Items
    Union Connector - Low Dead Volume for fractional tube

    Union Connector - Low Dead Volume for fractional tube
    Union Connector - Low Dead Volume for fractional tube

    Union Connector - Low Dead Volume for fractional tube
    Union Connector - Low Dead Volume for fractional tube

    Union Connector - Low Dead Volume for fractional tube
    Union Connector - Low Dead Volume for fractional tube

    Union Connector - Low Dead Volume for fractional tube
    Union Connector - Low Dead Volume for fractional tube

    Union Connector - Low Dead Volume for fractional tube
    Connection Type N/A CPI™ to CPI™ N/A CPI™ to CPI™ N/A CPI™ to CPI™ N/A A-LOK® to A-LOK® N/A A-LOK® to A-LOK®
    T1 Tube O.D. N/A 1/16 in N/A 1/8 in N/A 1/8 in N/A 1/16 in N/A 1/8 in
    T2 Tube O.D. N/A 1/16 in N/A 1/16 in N/A 1/8 in N/A 1/16 in N/A 1/16 in
    A N/A 1.26 in N/A 1.53 in N/A 1.81 in N/A 1.26 in N/A 1.53 in
    B N/A .21 in N/A .31 in N/A .31 in N/A .21 in N/A .31 in
    C N/A .21 in N/A .21 in N/A .31 in N/A .21 in N/A .21 in
    D1 N/A .41 in N/A .56 in N/A .56 in N/A .41 in N/A .56 in
    D2 N/A .41 in N/A .41 in N/A .56 in N/A .41 in N/A .41 in
    E Internal Opening N/A .01 in N/A .01 in N/A .05 in N/A .01 in N/A .01 in
    G1 N/A .25 in N/A .38 in N/A .38 in N/A .25 in N/A .38 in
    G2 N/A .25 in N/A .25 in N/A .38 in N/A .25 in N/A .25 in
    H N/A .84 in N/A 1.01 in N/A 1.19 in N/A .84 in N/A 1.01 in
    W HEX N/A 1/4 in N/A 7/16 in N/A 7/16 in N/A 1/4 in N/A 7/16 in
    Internal Volume N/A 8.7 x 10-5cc N/A 8.7 x 10-5cc N/A 9.7 x 10-2cc N/A 8.7 x 10-5cc N/A 8.7 x 10-5cc