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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.
  • For bulkhead hole drill size and maximum bulkhead thickness, see page 32, Part BC..
  • NPT Female Bulkhead Connector for fractional tube
    Unit of Measure
    Items NPT Female Bulkhead Connector for fractional tube
    2-2 GH2BZ
    NPT Female Bulkhead Connector for fractional tube
    NPT Female Bulkhead Connector for fractional tube
    3-2 GH2BZ
    NPT Female Bulkhead Connector for fractional tube
    NPT Female Bulkhead Connector for fractional tube
    4-2 GH2BZ
    NPT Female Bulkhead Connector for fractional tube
    NPT Female Bulkhead Connector for fractional tube
    4-4 GH2BZ
    NPT Female Bulkhead Connector for fractional tube
    NPT Female Bulkhead Connector for fractional tube
    5-2 GH2BZ
    NPT Female Bulkhead Connector for fractional tube
    Connection Type N/A CPI™ to FNPT
    NPT Pipe Thread N/A 1/8 N/A 1/8 N/A 1/8 N/A 1/4 N/A 1/8
    A N/A 1.76 in N/A 1.79 in N/A 1.85 in N/A 2.04 in N/A 1.96 in
    C N/A 1.23 in N/A 1.26 in N/A 1.31 in N/A 1.31 in N/A 1.42 in
    L N/A .97 in N/A 1.00 in N/A 1.02 in N/A 1.02 in N/A 1.12 in
    W HEX N/A 9/16 in N/A 9/16 in N/A 5/8 in N/A 3/4 in N/A 11/16 in