Midland Industries 18192 Brass Compression Adapter

Product Description

The MIDLAND INDUSTRIES 18192 is a brass male adapter fitting that transitions a 7/16-inch compression connection to a 1/4-inch male NPTF threaded port. It is used to join soft tubing systems to threaded fittings in plumbing, refrigeration, and fluid-handling applications. The fitting features a 5/8-24 compression thread on one end and a 1/4-18 NPTF thread on the other, with a 0.62-inch hex for wrench engagement. Rated to 200 psi and a temperature range of -65 to 250 degrees F, it is suited for a wide variety of low-pressure and medium-pressure service environments. Licensed plumbers and HVAC technicians are the primary installers.

This adapter is designed for use with copper, aluminum, and thermoplastic tubing in residential and light commercial installations. Common applications include refrigeration line connections, fuel gas instrument lines, pneumatic control circuits, and plumbing supply tie-ins where a compression tubing run terminates at a threaded component. The 1.06-inch center-to-end dimension makes it compatible with tight-clearance installations. Its all-brass construction resists corrosion in both wet and dry service environments.

Key Features

• 7/16-inch compression inlet to 1/4-inch male NPTF outlet transition
• Rated to 200 psi working pressure
• Operating temperature range of -65 to 250 degrees F
• Compatible with copper, aluminum, and thermoplastic tubing
• 0.62-inch hex flat for standard wrench installation
• All-brass construction for corrosion resistance in fluid and gas service

Compatibility

Designed for use with copper, aluminum, and thermoplastic tubing in compression-to-NPTF threaded fitting applications.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with applicable local codes and the IPC or IFGC as appropriate. Shut off system pressure and relieve any residual pressure before disassembling existing fittings. Use a wrench on the hex flat only - do not grip the compression nut body to avoid deforming the fitting. Apply thread sealant or PTFE tape to the male NPTF threads per standard practice; do not over-torque.