Parker PP4TMC4 Tube Stem Adapter 1/4 in Od Nptf

Product Description

The PARKER PP4TMC4 is a push-to-connect tube stem adapter designed to create a quick, tool-free connection between tubing and a threaded port. The fitting accepts 1/4 inch outside diameter tubing and threads into a 1/4 inch NPTF female port. Constructed from polypropylene, this adapter is rated to 150 psi and carries a tan color finish. It is commonly installed by plumbers, HVAC technicians, and industrial service professionals in fluid handling and pneumatic systems where a fast, reliable tube-to-thread transition is needed without additional compression hardware.

This adapter is suited for use in residential and light commercial applications involving water, air, or compatible fluid lines. The push-to-connect mechanism allows tubing to be inserted and locked in place without tools, reducing installation time and simplifying field repairs. Its polypropylene construction makes it appropriate for corrosion-resistant installations in environments where metal fittings may not be preferred. Typical install scenarios include equipment tie-ins, instrumentation lines, and low-pressure pneumatic or fluid distribution systems.

Key Features

• Push-to-connect design allows tool-free tubing insertion and secure locking
• 1/4 inch OD tubing compatibility with 1/4 inch NPTF threaded port connection
• Polypropylene construction provides corrosion resistance for compatible fluid and air service
• 150 psi pressure rating suitable for low-pressure pneumatic and fluid handling applications
• Tan color for easy visual identification in mixed-fitting installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems using 1/4 inch OD tubing with 1/4 inch NPTF threaded ports in low-pressure pneumatic or fluid handling applications.

Installation Notes

Installation is typically performed by licensed plumbers or HVAC technicians. Before servicing any fluid or pneumatic line, depressurize the system completely and verify the line is de-energized if associated with any powered equipment. Ensure tubing is cut cleanly and squarely for a proper push-to-connect seal, and confirm NPTF thread engagement is tight and leak-free before returning the system to service. Thread sealant tape or compound may be used on the male NPTF thread per the applicable installation code.