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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.
  • Tube stub is pre-grooved as standard.
  • Add -Z6 for assembly of nuts and ferrules on the tube stub end.
  • Tube End NPT Female Adapter for metric tube
    Unit of Measure
    Items Tube End NPT Female Adapter for metric tube
    T2HG 3-1/8
    Tube End NPT Female Adapter for metric tube
    Tube End NPT Female Adapter for metric tube
    T2HG 4-1/8
    Tube End NPT Female Adapter for metric tube
    Tube End NPT Female Adapter for metric tube
    T2HG 6-1/8
    Tube End NPT Female Adapter for metric tube
    Tube End NPT Female Adapter for metric tube
    T2HG 6-1/4
    Tube End NPT Female Adapter for metric tube
    Tube End NPT Female Adapter for metric tube
    T2HG 8-1/8
    Tube End NPT Female Adapter for metric tube
    Connection Type N/A Tube to FNPT
    Tube O.D. N/A 3.0 mm N/A 4.0 mm N/A 6.0 mm N/A 6.0 mm N/A 8.0 mm
    NPT Thread N/A 1/8 N/A 1/8 N/A 1/8 N/A 1/4 N/A 1/8
    A N/A 31.3 mm N/A 29.4 mm N/A 29.4 mm N/A 34.1 mm N/A 35.5 mm
    K N/A 13.5 mm N/A 14.3 mm N/A 15.9 mm N/A 15.9 mm N/A 16.7 mm
    W HEX N/A 14.0 mm N/A 14.0 mm N/A 14.0 mm N/A 19.0 mm N/A 14.0 mm
    Bore N/A 1.3 mm N/A 2.0 mm N/A 4.0 mm N/A 4.0 mm N/A 6.4 mm