Midland Industries 38134 Brass Male Branch Tee 1/2x3/8x3/8

Product Description

The MIDLAND INDUSTRIES 38134 is a brass NAB male branch tee fitting designed for use in DOT air brake nylon tubing systems. It connects 1/2 inch tube OD and 3/8 inch tube OD compression-style ports to a 3/8 inch MNPTF threaded outlet, allowing a single line to branch into two directions within a pneumatic circuit. Rated at 150 psi and suitable for temperatures from -40 to 200 degrees F, this fitting is built for the pressure and vibration demands of commercial vehicle and industrial air brake plumbing. Licensed plumbers, fleet mechanics, and pneumatic system technicians are the primary installers.

The 38134 is specified for use with SAE J844 Type A and Type B NT nylon tubing, which are the standard tube materials found in DOT-compliant air brake lines on trucks, trailers, and related heavy equipment. Its three-port configuration makes it suitable for tee-off applications where a main air supply line must feed a secondary branch circuit without additional adapters. The fitting measures approximately 2.7 inches in length, 1.4 inches in width, and 0.8 inches in height, making it compact enough for tight under-chassis installations.

Key Features

• Three-port branch tee: 1/2 inch tube OD, 3/8 inch tube OD, and 3/8 inch MNPTF connections
• Rated to 150 psi for DOT air brake circuit applications
• Operating temperature range: -40 to 200 degrees F
• Compatible with SAE J844 Type A and Type B NT nylon tubing
• Solid brass construction for corrosion resistance in pneumatic systems
• Thread specification: 11/16-20 x 3/8-18

Compatibility

Designed for use with SAE J844 Type A and Type B NT nylon tubing in DOT air brake nylon tubing systems.

Installation Notes

Installation should be performed by a qualified mechanic or plumber familiar with DOT air brake system requirements. Depressurize the entire air brake system before removing or installing any fittings. Inspect tubing ends for clean, square cuts before inserting into compression ports to ensure a proper seal. Verify the completed assembly holds rated pressure before returning the vehicle or system to service.