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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.
  • Pipe Buttweld end will conform to Schedule 80 unless otherwise noted.
  • See Catalog Welded Fittings, for additional sizes.
  • Adapter fitting for connection of compression fittings to welded systems.
  • Buttweld Connector for fractional tube
    Unit of Measure
    Items Buttweld Connector for fractional tube
    2-1/8 ZHBW2
    Buttweld Connector for fractional tube
    Buttweld Connector for fractional tube
    3-1/8 ZHBW2
    Buttweld Connector for fractional tube
    Buttweld Connector for fractional tube
    4-1/8 ZHBW2
    Buttweld Connector for fractional tube
    Buttweld Connector for fractional tube
    4-1/4 ZHBW2
    Buttweld Connector for fractional tube
    Buttweld Connector for fractional tube
    5-1/8 ZHBW2
    Buttweld Connector for fractional tube
    Connection Type N/A CPI™ x Buttweld
    Tube O.D. N/A 1/8 in N/A 3/16 in N/A 1/4 in N/A 1/4 in N/A 5/16 in
    Buttweld Pipe Size N/A 1/8 in N/A 1/8 in N/A 1/8 in N/A 1/4 in N/A 1/8 in
    A N/A 1.20 in N/A 1.24 in N/A 1.29 in N/A 1.46 in N/A 1.48 in
    C N/A .60 in N/A .64 in N/A .70 in N/A .70 in N/A .73 in
    R N/A .38 in N/A .38 in N/A .38 in N/A .56 in N/A .38 in
    X Buttweld O.D. N/A .41 in N/A .41 in N/A .41 in N/A .54 in N/A .41 in
    W HEX N/A 7/16 in N/A 7/16 in N/A 1/2 in N/A 9/16 in N/A 1/2 in