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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.
  • Fittings of this group may be back-drilled to larger I.D. at pipe end.
  • A and C dimensions are typical finger-tight.
  • Pipe Buttweld end will conform to Schedule 80 unless otherwise noted.
  • E dimension is minimum opening.
  • Adapter fitting for connection of compression fittings to welded systems.
  • Buttweld Connector for metric tube
    Unit of Measure
    Items Buttweld Connector for metric tube
    ZHBW2 3-1/8
    Buttweld Connector for metric tube
    Buttweld Connector for metric tube
    ZHBW2 4-1/8
    Buttweld Connector for metric tube
    Buttweld Connector for metric tube
    ZHBW2 6-1/8
    Buttweld Connector for metric tube
    Buttweld Connector for metric tube
    ZHBW2 6-1/4
    Buttweld Connector for metric tube
    Buttweld Connector for metric tube
    ZHBW2 8-1/8
    Buttweld Connector for metric tube
    Connection Type N/A CPI™ x Buttweld
    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
    Buttweld Pipe N.B. N/A 1/8 mm N/A 1/8 mm N/A 1/8 mm N/A 1/4 mm N/A 1/8 mm
    A N/A 29.7 mm N/A 30.7 mm N/A 32.9 mm N/A 37.7 mm N/A 34.2 mm
    C N/A 15.3 mm N/A 16.1 mm N/A 17.7 mm N/A 17.7 mm N/A 18.6 mm
    R N/A 9.7 mm N/A 9.7 mm N/A 9.7 mm N/A 14.2 mm N/A 9.7 mm
    X N/A 10.3 mm N/A 10.3 mm N/A 10.3 mm N/A 13.7 mm N/A 10.3 mm
    E Bore N/A 2.4 mm N/A 2.4 mm N/A 4.8 mm N/A 4.8 mm N/A 5.1 mm
    W HEX N/A 12.0 mm N/A 12.0 mm N/A 14.0 mm N/A 14.0 mm N/A 15.0 mm