Midland Industries 540808S 45-degree Swivel Elbow Brass

Product Description

The MIDLAND INDUSTRIES 540808S is a 45-degree swivel elbow fitting designed to connect 1/2-inch tube OD to a 1/2-inch male pipe thread (MPT) port. Constructed from brass, it is rated for up to 150 psi working pressure and a temperature range of -40 to 200 degrees F. The swivel design allows the tube side to rotate during installation, reducing the risk of tube twist and simplifying routing in tight spaces. A 5/8-inch hex flat provides a standard wrench grip. This fitting is installed by plumbers and mechanical technicians in compressed air, fuel, refrigeration, and fluid distribution systems.

The 540808S is suited for residential and light commercial applications where a push-to-connect or compression tube connection must transition to a male threaded port at a 45-degree angle. It is commonly used in D.O.T.-compliant brass fitting assemblies, air brake lines, and general fluid handling systems where a reliable brass body fitting is required at a direction change point. The swivel elbow is also appropriate for HVAC and plumbing rough-in work where tube routing flexibility is needed near threaded ports.

Key Features

• 45-degree swivel elbow allows tube-side rotation for easier routing and reduced tube stress during assembly
• Rated to 150 psi working pressure for reliable performance in compressed air and fluid systems
• Wide service temperature range of -40 to 200 degrees F suits both refrigeration and heated fluid applications
• Brass construction provides corrosion resistance and durability in plumbing and pneumatic environments
• 1/2-14 thread pitch on the MPT end ensures compatibility with standard pipe thread ports
• 5/8-inch hex flat allows secure tightening with a standard open-end or adjustable wrench

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/2-inch tube OD to 1/2-inch MPT connections in D.O.T. brass push-to-connect fitting assemblies and general compressed air or fluid distribution systems.

Installation Notes

This fitting is installed by licensed plumbers or mechanical technicians. Shut off system pressure and depressurize the line completely before removing or installing any fitting. Use thread sealant or PTFE tape on the MPT threads and tighten to the hex flat with a wrench - do not overtighten. Follow applicable IPC and local plumbing codes for fitting installation in pressurized fluid systems.