Parker A4RD6-MG Push-to-connect Plug-in Reducer 1/4 in

Product Description

The PARKER A4RD6-MG is a push-to-connect plug-in reducer tube fitting designed for pneumatic and fluid tubing systems where a quick, tool-free connection is required. Constructed from polyoxymethylene (POM), a rigid engineering-grade thermoplastic, this reducer accepts 1/4-inch outside-diameter tubing and allows for a size reduction within a run of tubing without threading or soldering. Rated to 300 psi, it is suited for compressed air and compatible fluid applications in light industrial, instrumentation, and general pneumatic circuits. The tan POM body resists many chemicals and maintains dimensional stability under moderate-pressure service conditions.

This fitting is intended for use in pneumatic control systems, instrumentation panels, and general-purpose fluid distribution lines where compact, push-in fittings are the specified connection method. Typical installation scenarios include OEM equipment assemblies, machine tool pneumatics, and process instrumentation tubing. The reducer style allows a transition between two different tubing sizes inline, making it useful when routing between components with differing port sizes.

Key Features

• Push-to-connect design allows tool-free tube insertion and secure retention
• Polyoxymethylene (POM) construction provides rigidity, chemical resistance, and dimensional stability
• Rated to 300 psi for use in compressed air and compatible fluid systems
• Plug-in reducer style enables inline transition between tubing sizes
• Compact form factor suitable for panel and OEM equipment installations
• Tan color for easy visual identification in multi-line pneumatic assemblies

Compatibility

Designed as an OEM-style push-to-connect replacement or addition for pneumatic and fluid tubing systems using 1/4-inch outside-diameter tubing with standard push-in fitting connections.

Installation Notes

Depressurize and isolate the tubing circuit completely before removing or installing any push-to-connect fitting. Verify tubing is cut squarely and cleanly with no burrs, as irregular cuts can compromise the internal collet seal and cause leakage. Ensure the tubing outside diameter matches the fitting specification before insertion. This fitting is typically installed by pneumatic technicians, instrumentation mechanics, or maintenance personnel following applicable system pressure and material compatibility requirements.