Parker 4-4 GH2BZ-SS Bulkhead Female Connector 1/4 in Ss

Product Description

The PARKER 4-4 GH2BZ-SS is a stainless steel compression tube bulkhead female connector designed to route tubing through a panel or wall while maintaining a secure, leak-resistant seal. One end accepts a 1/4-inch OD compression tube; the other end threads into a female NPT port. Rated to 10,300 psi maximum working pressure, this fitting is built for demanding fluid and instrumentation systems where pressure integrity is critical. Its stainless steel construction meets ASME-SB75 and ASTM-B75 standards, making it suitable for corrosive or high-purity service environments. Plumbers, pipefitters, and instrumentation technicians install this fitting in process lines, pneumatic systems, and HVAC refrigerant or fluid circuits.

This fitting is intended for applications where a 1/4-inch OD tube must pass through a bulkhead, enclosure panel, or manifold wall with a female NPT connection on the through-side. Typical use cases include industrial process instrumentation, hydraulic and pneumatic panels, chemical distribution lines, and commercial HVAC fluid circuits. The compression-by-FNPT configuration allows a direct tube-to-threaded-port transition at the bulkhead, reducing the need for additional fittings or adapters in the assembly.

Key Features

• Rated to 10,300 psi maximum working pressure for high-pressure service
• Stainless steel construction conforming to ASME-SB75 and ASTM-B75 standards
• Compression x FNPT end connections for tube-to-threaded-port bulkhead routing
• 1/4-inch OD tube outside diameter on the compression end
• 2.04-inch overall length for standard panel installations
• Corrosion-resistant material suitable for aggressive or high-purity media

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems using 1/4-inch OD compression tubing with female NPT bulkhead connections in process, instrumentation, pneumatic, or fluid-handling applications.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or qualified instrumentation technician familiar with compression fittings and threaded connections. Depressurize and isolate the system fully before removing or installing any fitting. Apply an appropriate thread sealant to the FNPT threads in accordance with the system fluid compatibility requirements and applicable codes such as ASME B31.3 for process piping. Do not overtighten the compression nut, as excessive torque can deform the ferrule and compromise the seal.