Parker PP4TMC2 Push-to-connect Tube Stem Adapter

Product Description

The PARKER PP4TMC2 is a push-to-connect tube stem adapter designed to join 1/4 inch OD tubing to a 1/8 inch NPTF threaded port. Constructed from polypropylene, this fitting delivers a rated working pressure of 150 psi and is available in a tan finish. The push-to-connect mechanism allows for fast, tool-free tube insertion without the need for ferrules, nuts, or sealant tape on the tube end. It is well-suited for pneumatic control lines, fluid transfer systems, and instrumentation tubing runs where quick assembly and a secure, leak-resistant connection are required. The fitting weighs 0.01 pounds.

This adapter is used in residential and light commercial HVAC, plumbing, and fluid handling applications where polypropylene construction is compatible with the working fluid or gas. Typical installation scenarios include connecting small-bore tubing to threaded ports on control valves, manifolds, solenoids, and similar components. The NPTF thread form provides a dry-seal mechanical connection at the threaded end, reducing reliance on thread sealant for pressure integrity.

Key Features

• Push-to-connect design allows fast, tool-free tube insertion and release
• 1/4 inch OD tube connection with 1/8 inch NPTF threaded male end
• Polypropylene construction resists corrosion and many common chemicals
• Rated to 150 psi working pressure
• Tan color for visual identification in multi-line installations
• Lightweight at 0.01 pounds per fitting

Compatibility

Designed as an OEM-style push-to-connect fitting for use with 1/4 inch OD tubing and 1/8 inch NPTF threaded ports in pneumatic and fluid transfer systems.

Installation Notes

Installation is performed by qualified plumbing, HVAC, or instrumentation technicians. Depressurize and isolate the line before removing or installing any fitting. Ensure the tube end is cut cleanly and squarely with no burrs before insertion into the push-to-connect port. Verify that the working fluid and pressure are compatible with polypropylene before placing in service.