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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.
  • Tube stub is pre-grooved as standard.
  • Add -Z6 for assembly of nuts and ferrules on the tube stub end.
    • Tube End Reducer for metric tube
    Unit of Measure
    Items Tube End Reducer for metric tube
    TRBZ 6-3
    Tube End Reducer for metric tube     		Tube End Reducer for metric tube
    TRBZ 6-10
    Tube End Reducer for metric tube     		Tube End Reducer for metric tube
    TRBZ 8-6
    Tube End Reducer for metric tube     		Tube End Reducer for metric tube
    TRBZ 10-6
    Tube End Reducer for metric tube     		Tube End Reducer for metric tube
    TRBZ 10-8
    Tube End Reducer for metric tube
    Connection Type N/A Tube to CPI™
    T1 Turned End Tube O.D. N/A 6.0 mm N/A 6.0 mm N/A 8.0 mm N/A 10.0 mm N/A 10.0 mm
    T2 Machined End Tube O.D. N/A 3.0 mm N/A 10.0 mm N/A 6.0 mm N/A 6.0 mm N/A 8.0 mm
    A N/A 36.1 mm N/A 42.4 mm N/A 42.0 mm N/A 45.6 mm N/A 46.5 mm
    C N/A 15.3 mm N/A 19.5 mm N/A 17.7 mm N/A 17.7 mm N/A 18.6 mm
    K N/A 17.9 mm N/A 17.9 mm N/A 16.7 mm N/A 21.0 mm N/A 21.0 mm
    W HEX N/A 12.0 mm N/A 18.0 mm N/A 14.0 mm N/A 14.0 mm N/A 15.0 mm
    Bore N/A 2.4 mm N/A 4.0 mm N/A 4.8 mm N/A 4.8 mm N/A 6.4 mm