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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.
  • Copper washer must be used for this design.
  • Tube stub is pre-grooved as standard.
  • Add -Z6 for assembly of nuts and ferrules on the tube stub end.
  • BSPP Female Adapter for metric tube
    Unit of Measure
    1 2 

    Item #

    Connection Type

    Tube O.D.

    BSPP Thread

    A

    K

    W HEX

    Bore

    M18FA3/4R N/A Tube to FBSPP N/A 18.0 mm N/A 3/4 N/A 53.2 mm N/A 24.6 mm N/A 33.0 mm N/A 14.0 mm
    M20FA3/4R N/A Tube to FBSPP N/A 20.0 mm N/A 3/4 N/A 54.0 mm N/A 25.4 mm N/A 33.0 mm N/A 15.1 mm
    M25FA1R N/A Tube to FBSPP N/A 25.0 mm N/A 1 N/A 67.5 mm N/A 31.8 mm N/A 41.0 mm N/A 19.8 mm
    Unit of Measure
    1 2