Midland Industries 20057P Push-in Mip Adapter Polypropylene

Product Description

The MIDLAND INDUSTRIES 20057P is a polypropylene push-in to male iron pipe adapter designed for use in pneumatic and fluid transfer applications. One end accepts 3/8-inch push-in tubing for a tool-free, instant connection, while the other end threads into a 1/8-inch MIP port with a 1/8-27 thread form. Rated to 170 psi, this fitting handles typical working pressures found in compressed air and light fluid systems. Its polypropylene construction provides resistance to many common chemicals and corrosion, making it suitable for applications where metal fittings may not be ideal. Plumbers, HVAC technicians, and pneumatic system installers are the primary users of this fitting.

This adapter is used in residential and light commercial installations where push-in tubing lines connect to threaded equipment ports. Common applications include compressed air distribution, pneumatic control circuits, and water or fluid transfer lines using poly or nylon tubing. The 1/8-inch MIP thread makes it compatible with manifolds, solenoid valves, pressure switches, and other components that use standard 1/8-inch NPT female ports. Its compact dimensions make it practical in tight equipment enclosures or panel installations.

Key Features

• 3/8-inch push-in connection allows tool-free tubing insertion and removal
• 1/8-inch MIP (1/8-27 thread) threads directly into standard NPT female ports
• Rated to 170 psi for reliable performance in compressed air and fluid systems
• Polypropylene construction resists corrosion and many common chemicals
• Compact profile at 1.2 inches length and 0.75 inches height for use in confined spaces

Compatibility

Designed as an OEM-style replacement or new-installation push-in fitting for pneumatic and fluid systems using 3/8-inch tubing and equipment with 1/8-inch NPT female threaded ports.

Installation Notes

This fitting is typically installed by HVAC technicians, plumbers, or pneumatic system technicians. Depressurize and isolate the system completely before removing any existing fittings or connecting new ones. Apply appropriate thread sealant to the MIP threads per standard practice; do not overtighten, as polypropylene threads can crack under excessive torque. Ensure tubing is cut cleanly and squarely before inserting into the push-in end to achieve a proper seal.