Parker 4-2 GH2BZ-B Bulkhead Female Connector Brass

Product Description

The PARKER 4-2 GH2BZ-B is a brass bulkhead female connector designed to pass a compression tube through a panel or bulkhead and terminate with a female NPT thread on the other side. It accepts a 1/4 inch outside diameter tube on the compression end and connects to a 1/8 inch female NPT port. Rated to 3500 psi maximum working pressure and manufactured to ASME-SB75 and ASTM-B75 standards, this fitting is built for high-pressure instrumentation, pneumatic, and fluid system applications. It is installed by plumbers, pipefitters, and instrumentation technicians in industrial and commercial environments.

This fitting is suited for applications where tubing must pass through a wall, panel, or enclosure and connect to a threaded port on the opposite side. Common uses include compressed air distribution panels, hydraulic control systems, refrigeration instrumentation lines, and HVAC equipment with panel-mounted tubing. The compression end allows for a secure, leak-resistant connection without soldering, and the brass construction provides corrosion resistance in moderate-duty fluid and gas service.

Key Features

• Bulkhead design allows tube pass-through mounting in panels and enclosures
• 1/4 inch OD compression inlet paired with 1/8 inch FNPT outlet
• 3500 psi maximum working pressure for high-pressure system compatibility
• Brass construction meets ASME-SB75 and ASTM-B75 material standards
• No-solder compression connection reduces installation time
• Overall length of 1.85 inches for compact panel installations

Compatibility

Designed as an OEM-style replacement or direct-use fitting for compression tube bulkhead applications requiring a 1/4 inch OD tube and 1/8 inch FNPT thread interface. Cross-reference Swagelok part number B-400-71-2 for equivalent fitment.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified instrumentation technician. Depressurize and isolate the system completely before removing or installing any compression fittings. Use appropriate thread sealant on the FNPT connection and ensure the compression ferrule is properly seated before torquing. Follow applicable codes including ASME B31.1 or B31.3 for pressure piping systems.