Parker 3-4 Fbz-ss Compression Tube Connector 1/4 Inch Mnpt

Product Description

The PARKER 3-4 FBZ-SS is a stainless steel compression tube connector designed to join tubing to a male NPT threaded port in fluid and gas distribution systems. It uses a compression-style end connection on one side and a 1/4-inch MNPT thread on the other, creating a secure, leak-resistant joint without welding or soldering. Rated to 10,300 psi maximum working pressure, this fitting is built for demanding applications where pressure integrity and corrosion resistance are non-negotiable. Plumbers, pipefitters, and instrumentation technicians install this type of fitting in hydraulic, pneumatic, and process piping systems.

This fitting is suited for both residential and commercial installations where a compression-to-male-NPT transition is required. Typical applications include instrumentation tubing runs, refrigeration lines, hydraulic control circuits, and process fluid handling systems. The stainless steel construction makes it appropriate for environments with exposure to moisture, corrosive media, or elevated pressure cycles. It connects standard compression tubing directly to any 1/4-inch male NPT port on valves, manifolds, or equipment.

Key Features

• Compression x MNPT end connections for tool-free tube insertion on one end
• 1/4-inch thread size with MPT thread standard
• 10,300 psi maximum working pressure rating
• Stainless steel construction for corrosion resistance in harsh environments
• 1.43-inch overall length suits tight installation spaces
• Weighs 0.06 pounds, minimizing added load on tubing assemblies

Compatibility

Designed as an OEM-style replacement or new-installation compression tube connector for systems requiring a 1/4-inch MNPT compression fitting in stainless steel construction.

Installation Notes

This fitting is typically installed by licensed plumbers, pipefitters, or instrumentation technicians following applicable IPC or system-specific piping codes. Before installation, depressurize and isolate the line completely. Ensure tubing is cut square and deburred before seating it into the compression end to achieve a proper seal. Do not overtighten the compression nut, as this can deform the ferrule and compromise the connection.