Parker 4-8 Gbz-ss Compression Tube Connector 1/2 in Ss

Product Description

The PARKER 4-8 GBZ-SS is a stainless steel compression tube connector designed to join tubing to female NPT threaded ports in high-pressure fluid and gas systems. It features a 1/2 inch thread size with a compression-to-FNPT end configuration, allowing a secure, leak-resistant mechanical connection without soldering or brazing. Rated to a maximum working pressure of 10,300 psi, this fitting is built for demanding service conditions. Licensed plumbers, pipefitters, and instrumentation technicians commonly install this type of connector in process piping, instrumentation lines, and hydraulic or pneumatic control systems.

This connector is suited for both commercial and industrial applications where stainless steel corrosion resistance and high-pressure integrity are required. Typical installations include instrumentation tubing runs, HVAC hydronic systems, compressed gas lines, and chemical process piping where a reliable compression-to-threaded transition is needed. The FNPT port end threads into standard female NPT fittings or valves, making it a versatile transition fitting across a wide range of plumbing and mechanical system builds.

Key Features

• Maximum working pressure rated at 10,300 psi for high-pressure service
• Stainless steel construction provides corrosion resistance in harsh or wet environments
• Compression x FNPT end connections allow tubing-to-threaded-port transitions without soldering
• 1/2 inch thread size conforms to FPT thread standard
• Sold individually — package quantity of 1

Compatibility

Designed as an OEM-style replacement or new-installation fitting for compression-to-FNPT tube connector applications in plumbing, instrumentation, and process piping systems requiring a 1/2 inch FPT thread interface.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or relevant process piping standards. Depressurize and isolate the line completely before removing or installing any compression fitting. Use the appropriate tube preparation tools to ensure a clean, square tube cut before seating the compression ferrule. Do not overtighten the compression nut, as this can deform the ferrule and compromise the seal.