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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.
    • Hose Connector Sleeve for fractional tube
    Unit of Measure
    1 

    Item #

    Connection Type

    Hose I.D.

    Hose O.D.

    L

    W HEX

    HCS 2-4 N/A Socket x Socket N/A 1/8 in N/A 1/4 in N/A .41 in N/A 3/8 in
    HCS 4-6 N/A Socket x Socket N/A 1/4 in N/A 3/8 in N/A .78 in N/A 9/16 in
    HCS 4-7 N/A Socket x Socket N/A 1/4 in N/A 7/16 in N/A .78 in N/A 5/8 in
    HCS 4-8 N/A Socket x Socket N/A 1/4 in N/A 1/2 in N/A .78 in N/A 11/16 in
    HCS 4-9 N/A Socket x Socket N/A 1/4 in N/A 9/16 in N/A .78 in N/A 3/4 in
    HCS 5-7 N/A Socket x Socket N/A 5/16 in N/A 7/16 in N/A .88 in N/A 5/8 in
    HCS 6-8 N/A Socket x Socket N/A 3/8 in N/A 1/2 in N/A .88 in N/A 11/16 in
    HCS 6-9 N/A Socket x Socket N/A 3/8 in N/A 9/16 in N/A .88 in N/A 3/4 in
    HCS 8-11 N/A Socket x Socket N/A 1/2 in N/A 11/16 in N/A .94 in N/A 7/8 in
    HCS 12-16 N/A Socket x Socket N/A 3/4 in N/A 1 in N/A 1.06 in N/A 1.25 in
    Unit of Measure
    1