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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:
  • A and C dimensions are typical finger-tight.
  • Dimensions for reference only, subject to change.
  • Inverted 1/16" end substantially
  • No frit for use with G.C. columns or L.C. columns with screens
  • Can be used as a low volume reducing union
  • Low dead volume fitting adapter for connection to compression fitting tubes.

    • G.C. = Gas Chromatograph
    L.C. = Liquid Chromatograph
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    Unit of Measure
    Items
    Column End Fitting - Low Internal Volume (without Frit) for fractional tube

    Column End Fitting - Low Internal Volume (without Frit) for fractional tube
    Column End Fitting - Low Internal Volume (without Frit) for fractional tube

    Column End Fitting - Low Internal Volume (without Frit) for fractional tube
    Column End Fitting - Low Internal Volume (without Frit) for fractional tube

    Column End Fitting - Low Internal Volume (without Frit) for fractional tube
    Column End Fitting - Low Internal Volume (without Frit) for fractional tube

    Column End Fitting - Low Internal Volume (without Frit) for fractional tube
    Column End Fitting - Low Internal Volume (without Frit) for fractional tube

    Column End Fitting - Low Internal Volume (without Frit) 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 1/8 in N/A 1/4 in N/A 3/8 in N/A 1/8 in N/A 1/4 in
    T2 Tube O.D. N/A 1/16 in
    A N/A 1.16 in N/A 1.24 in N/A 1.35 in N/A 1.16 in N/A 1.24 in
    C N/A .60 in N/A .70 in N/A .76 in N/A .60 in N/A .70 in
    W HEX N/A 7/16 in N/A 1/2 in N/A 5/8 in N/A 7/16 in N/A 1/2 in
    Internal Opening N/A .01 in
    Internal Volume N/A 1.0 x 10-4cc N/A 1.1 x 10-4cc N/A 1.3 x 10-4cc N/A 1.0 x 10-4cc N/A 1.1 x 10-4cc