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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.
  • A and C dimensions are typical finger-tight.
  • Sizes 20, 24, 32 require additional lubrication prior to assembly.
    • Union Tee for fractional tube
    Unit of Measure
    1 2 

    Item #

    Connection Type

    A

    C

    L

    W HEX

    1-1-1 JBZ N/A CPI™ x CPI™ x CPI™ N/A 1.42 in N/A .71 in N/A .55 in N/A 3/8 in
    2-2-2 JBZ N/A CPI™ x CPI™ x CPI™ N/A 1.76 in N/A .88 in N/A .62 in N/A 3/8 in
    3-3-3 JBZ N/A CPI™ x CPI™ x CPI™ N/A 1.94 in N/A .97 in N/A .70 in N/A 7/16 in
    4-4-4 JBZ N/A CPI™ x CPI™ x CPI™ N/A 2.12 in N/A 1.06 in N/A .77 in N/A 1/2 in
    5-5-5 JBZ N/A CPI™ x CPI™ x CPI™ N/A 2.34 in N/A 1.17 in N/A .88 in N/A 5/8 in
    6-6-6 JBZ N/A CPI™ x CPI™ x CPI™ N/A 2.40 in N/A 1.20 in N/A .91 in N/A 5/8 in
    8-8-8 JBZ N/A CPI™ x CPI™ x CPI™ N/A 2.84 in N/A 1.42 in N/A 1.02 in N/A 13/16 in
    10-10-10 JBZ N/A CPI™ x CPI™ x CPI™ N/A 3.06 in N/A 1.53 in N/A 1.13 in N/A 1 in
    12-12-12 JBZ N/A CPI™ x CPI™ x CPI™ N/A 3.14 in N/A 1.57 in N/A 1.17 in N/A 1 1/16 in
    14-14-14 JBZ N/A CPI™ x CPI™ x CPI™ N/A 3.52 in N/A 1.76 in N/A 1.36 in N/A 1 3/8 in
    16-16-16 JBZ N/A CPI™ x CPI™ x CPI™ N/A 3.88 in N/A 1.94 in N/A 1.45 in N/A 1 3/8 in
    20-20-20 JBZ N/A CPI™ x CPI™ x CPI™ N/A 5.22 in N/A 2.61 in N/A 1.75 in N/A 1 5/8 in
    24-24-24 JBZ N/A CPI™ x CPI™ x CPI™ N/A 6.12 in N/A 3.06 in N/A 2.00 in N/A 1 7/8 in
    32-32-32 JBZ N/A CPI™ x CPI™ x CPI™ N/A 8.42 in N/A 4.21 in N/A 2.75 in N/A 2 13/16 in
    1ET1 N/A A-LOK® x A-LOK® x A-LOK® N/A 1.42 in N/A .71 in N/A .55 in N/A 3/8 in
    2ET2 N/A A-LOK® x A-LOK® x A-LOK® N/A 1.76 in N/A .88 in N/A .62 in N/A 3/8 in
    3ET3 N/A A-LOK® x A-LOK® x A-LOK® N/A 1.94 in N/A .97 in N/A .70 in N/A 7/16 in
    4ET4 N/A A-LOK® x A-LOK® x A-LOK® N/A 2.12 in N/A 1.06 in N/A .77 in N/A 1/2 in
    5ET5 N/A A-LOK® x A-LOK® x A-LOK® N/A 2.34 in N/A 1.17 in N/A .88 in N/A 5/8 in
    6ET6 N/A A-LOK® x A-LOK® x A-LOK® N/A 2.40 in N/A 1.20 in N/A .91 in N/A 5/8 in
    8ET8 N/A A-LOK® x A-LOK® x A-LOK® N/A 2.84 in N/A 1.42 in N/A 1.02 in N/A 13/16 in
    10ET10 N/A A-LOK® x A-LOK® x A-LOK® N/A 3.06 in N/A 1.53 in N/A 1.13 in N/A 1 in
    12ET12 N/A A-LOK® x A-LOK® x A-LOK® N/A 3.14 in N/A 1.57 in N/A 1.17 in N/A 1 1/16 in
    14ET14 N/A A-LOK® x A-LOK® x A-LOK® N/A 3.52 in N/A 1.76 in N/A 1.36 in N/A 1 3/8 in
    16ET16 N/A A-LOK® x A-LOK® x A-LOK® N/A 3.88 in N/A 1.94 in N/A 1.45 in N/A 1 3/8 in
    Unit of Measure
    1 2