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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.
    • NPT Male Run Tee for fractional tube
    Unit of Measure
    1 2 

    Item #

    Connection Type

    NPT Pipe Thread

    A

    C

    H

    L

    R

    W HEX

    8MRT6N N/A A-LOK® x NPT x A-LOK® N/A 3/8 N/A 2.54 in N/A 1.42 in N/A 1.12 in N/A 1.02 in N/A .56 in N/A 13/16 in
    8MRT8N N/A A-LOK® x NPT x A-LOK® N/A 1/2 N/A 2.73 in N/A 1.42 in N/A 1.31 in N/A 1.02 in N/A .76 in N/A 7/8 in
    10MRT8N N/A A-LOK® x NPT x A-LOK® N/A 1/2 N/A 2.89 in N/A 1.50 in N/A 1.39 in N/A 1.10 in N/A .76 in N/A 15/16 in
    12MRT12N N/A A-LOK® x NPT x A-LOK® N/A 3/4 N/A 3.03 in N/A 1.57 in N/A 1.46 in N/A 1.17 in N/A .75 in N/A 1 1/16 in
    14MRT12N N/A A-LOK® x NPT x A-LOK® N/A 3/4 N/A 3.41 in N/A 1.76 in N/A 1.65 in N/A 1.36 in N/A .75 in N/A 1 3/8 in
    16MRT12N N/A A-LOK® x NPT x A-LOK® N/A 3/4 N/A 3.59 in N/A 1.94 in N/A 1.65 in N/A 1.45 in N/A .75 in N/A 1 3/8 in
    16MRT16N N/A A-LOK® x NPT x A-LOK® N/A 1 N/A 3.78 in N/A 1.94 in N/A 1.84 in N/A 1.45 in N/A .94 in N/A 1 3/8 in
    Unit of Measure
    1 2