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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.
  • Connecting non-metal tubing to pipe connections.
    • Barbed Connector to Male Pipe for fractional tube
    Unit of Measure
    1 

    Item #

    Connection Type

    T1 Hose I.D.

    T2 Male Pipe Size

    A

    E Bore

    K

    W HEX

    2-2 B2HF N/A Barbed Connector to NPT N/A 1/8 in N/A 1/8 N/A 1.00 in N/A .08 in N/A .41 in N/A 7/16 in
    2-4 B2HF N/A Barbed Connector to NPT N/A 1/8 in N/A 1/4 N/A 1.22 in N/A .08 in N/A .41 in N/A 9/16 in
    4-2 B2HF N/A Barbed Connector to NPT N/A 1/4 in N/A 1/8 N/A 1.41 in N/A .19 in N/A .75 in N/A 7/16 in
    4-4 B2HF N/A Barbed Connector to NPT N/A 1/4 in N/A 1/4 N/A 1.59 in N/A .19 in N/A .78 in N/A 9/16 in
    5-2 B2HF N/A Barbed Connector to NPT N/A 5/16 in N/A 1/8 N/A 1.50 in N/A .19 in N/A .88 in N/A 7/16 in
    5-4 B2HF N/A Barbed Connector to NPT N/A 5/16 in N/A 1/4 N/A 1.69 in N/A .25 in N/A .88 in N/A 9/16 in
    6-4 B2HF N/A Barbed Connector to NPT N/A 3/8 in N/A 1/4 N/A 1.72 in N/A .28 in N/A .88 in N/A 9/16 in
    6-6 B2HF N/A Barbed Connector to NPT N/A 3/8 in N/A 3/8 N/A 1.72 in N/A .30 in N/A .88 in N/A 11/16 in
    8-6 B2HF N/A Barbed Connector to NPT N/A 1/2 in N/A 3/8 N/A 1.81 in N/A .38 in N/A .94 in N/A 3/4 in
    8-8 B2HF N/A Barbed Connector to NPT N/A 1/2 in N/A 1/2 N/A 2.00 in N/A .38 in N/A .94 in N/A 7/8 in
    12-12 B2HF N/A Barbed Connector to NPT N/A 3/4 in N/A 3/4 N/A 2.13 in N/A .63 in N/A 1.03 in N/A 1 1/16 in
    Unit of Measure
    1