Parker PPB4UC4-MG Push-to-connect Union Fitting 1/4 in

Product Description

The PARKER PPB4UC4-MG is a push-to-connect union tube fitting designed to join two lengths of tubing with a tool-free, hand-inserted connection. Constructed from polypropylene with a black finish, this fitting accepts 1/4 inch OD tubing on both ends and is rated for 150 psi service. It is suited for use in low-pressure fluid, pneumatic, and instrumentation line applications where a quick, reliable tube-to-tube union is required. HVAC technicians, plumbers, and equipment service technicians typically install this fitting when reconnecting or extending tubing runs in control, condensate, or pneumatic signal lines.

This fitting is appropriate for residential and light commercial applications wherever 1/4 inch OD tubing unions are needed. Common install scenarios include condensate drain line repairs, pneumatic control tubing, and low-pressure water or fluid transfer systems. The push-to-connect design eliminates the need for tools, solvents, or clamps at the connection point, making it practical for in-field repairs and retrofits where access may be limited.

Key Features

• Push-to-connect design allows tool-free tube insertion for fast field installation
• Polypropylene body offers resistance to many common chemicals and fluids
• Accepts 1/4 inch OD tubing on both ends for a straight inline union
• Rated to 150 psi for reliable low-pressure service
• Black color allows straightforward visual identification in mixed-fitting installations
• Compact form factor fits tight spaces in equipment enclosures and panels

Compatibility

Designed as an OEM-style replacement or add-on union fitting for systems using 1/4 inch OD tubing in low-pressure pneumatic, fluid, or instrumentation line applications.

Installation Notes

Installation should be performed by a qualified technician following applicable codes for the system type. Before installing, isolate and depressurize the tubing line and verify the tubing OD matches the fitting specification. Cut tubing squarely and deburr the end before inserting into the push-to-connect port until it seats fully. To release tubing, depress the collet ring evenly before pulling the tube free.