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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.
  • C dimension is typical finger-tight.
    • Union Elbow for metric tube
    Unit of Measure
    1 2 

    Item #

    Connection Type

    Tube O.D.

    C

    L

    W HEX

    EBZ 3-3 N/A CPI™ to CPI™ N/A 3.0 mm N/A 22.3 mm N/A 15.7 mm N/A 3/8 in
    EBZ 4-4 N/A CPI™ to CPI™ N/A 4.0 mm N/A 25.4 mm N/A 18.8 mm N/A 1/2 in
    EBZ 6-6 N/A CPI™ to CPI™ N/A 6.0 mm N/A 27.0 mm N/A 19.6 mm N/A 1/2 in
    EBZ 8-8 N/A CPI™ to CPI™ N/A 8.0 mm N/A 28.8 mm N/A 21.3 mm N/A 9/16 in
    EBZ 10-10 N/A CPI™ to CPI™ N/A 10.0 mm N/A 31.5 mm N/A 23.9 mm N/A 11/16 in
    EBZ 12-12 N/A CPI™ to CPI™ N/A 12.0 mm N/A 36.0 mm N/A 25.9 mm N/A 13/16 in
    EBZ 14-14 N/A CPI™ to CPI™ N/A 14.0 mm N/A 38.1 mm N/A 28.0 mm N/A 15/16 in
    EBZ 15-15 N/A CPI™ to CPI™ N/A 15.0 mm N/A 38.0 mm N/A 27.9 mm N/A 15/16 in
    EBZ 16-16 N/A CPI™ to CPI™ N/A 16.0 mm N/A 38.0 mm N/A 27.9 mm N/A 15/16 in
    EBZ 18-18 N/A CPI™ to CPI™ N/A 18.0 mm N/A 39.8 mm N/A 29.7 mm N/A 1 1/16 in
    EBZ 20-20 N/A CPI™ to CPI™ N/A 20.0 mm N/A 44.6 mm N/A 34.5 mm N/A 1 3/8 in
    EBZ 22-22 N/A CPI™ to CPI™ N/A 22.0 mm N/A 44.6 mm N/A 34.5 mm N/A 1 3/8 in
    EBZ 25-25 N/A CPI™ to CPI™ N/A 25.0 mm N/A 49.1 mm N/A 36.8 mm N/A 1 3/8 in
    EEM3 N/A A-LOK® to A-LOK® N/A 3.0 mm N/A 22.3 mm N/A 15.7 mm N/A 3/8 in
    EEM4 N/A A-LOK® to A-LOK® N/A 4.0 mm N/A 25.4 mm N/A 18.8 mm N/A 1/2 in
    EEM6 N/A A-LOK® to A-LOK® N/A 6.0 mm N/A 27.0 mm N/A 19.6 mm N/A 1/2 in
    EEM8 N/A A-LOK® to A-LOK® N/A 8.0 mm N/A 28.8 mm N/A 21.3 mm N/A 9/16 in
    EEM10 N/A A-LOK® to A-LOK® N/A 10.0 mm N/A 31.5 mm N/A 23.9 mm N/A 11/16 in
    EEM12 N/A A-LOK® to A-LOK® N/A 12.0 mm N/A 36.0 mm N/A 25.9 mm N/A 13/16 in
    EEM14 N/A A-LOK® to A-LOK® N/A 14.0 mm N/A 38.1 mm N/A 28.0 mm N/A 15/16 in
    EEM15 N/A A-LOK® to A-LOK® N/A 15.0 mm N/A 38.0 mm N/A 27.9 mm N/A 15/16 in
    EEM16 N/A A-LOK® to A-LOK® N/A 16.0 mm N/A 38.0 mm N/A 27.9 mm N/A 15/16 in
    EEM18 N/A A-LOK® to A-LOK® N/A 18.0 mm N/A 39.8 mm N/A 29.7 mm N/A 1 1/16 in
    EEM20 N/A A-LOK® to A-LOK® N/A 20.0 mm N/A 44.6 mm N/A 34.5 mm N/A 1 3/8 in
    EEM22 N/A A-LOK® to A-LOK® N/A 22.0 mm N/A 44.6 mm N/A 34.5 mm N/A 1 3/8 in
    Unit of Measure
    1 2