Midland Industries 18229B 90 Deg Barstock Elbow Brass

Product Description

The MIDLAND INDUSTRIES 18229B is a 90-degree barstock elbow fitting designed for compression-style tube connections in fluid and gas line systems. It transitions a 5/16-inch tube OD to a 1/4-inch male NPTF threaded port, making it a common choice for routing tubing around corners while maintaining a leak-resistant seal. Machined from brass, this fitting is rated to 300 psi and handles temperatures from -65 to 250 degrees F. The 1/2-24 x 1/4-18 thread specification ensures compatibility with standard NPTF fittings. Plumbers, HVAC technicians, and refrigeration or instrumentation installers work with this type of fitting during new installs and service repairs.

This fitting is suited for residential and light commercial plumbing, HVAC, and pneumatic or instrumentation tubing applications. It is designed for use with copper, aluminum, and thermoplastic tubing. The 90-degree angle allows directional changes in tight spaces without bending tubing, which reduces stress on lines and keeps routing clean. The compact barstock body measures 0.57 inches in body size with a center-to-end dimension of 0.69 x 0.84 inches, making it practical in confined panel or equipment enclosures.

Key Features

• 90-degree elbow configuration for directional tubing changes without tube bending
• 5/16-inch tube OD compression inlet by 1/4-inch male NPTF threaded outlet
• Rated to 300 psi for reliable performance in pressurized systems
• Operating temperature range of -65 to 250 degrees F
• Compatible with copper, aluminum, and thermoplastic tubing
• Brass barstock construction resists corrosion and withstands moderate system pressures

Compatibility

Designed for use with copper, aluminum, and thermoplastic tubing in compression fitting systems. Suitable for plumbing, HVAC, pneumatic, and instrumentation tubing lines requiring a 5/16-inch tube OD to 1/4-inch male NPTF connection.

Installation Notes

Installation is typically performed by licensed plumbers or HVAC technicians. Shut off and depressurize the system completely before disconnecting any fittings or tubing. Ensure the tube end is cut cleanly and deburred before seating it into the compression fitting to prevent leaks. Thread connections should be made hand-tight first, then tightened with the appropriate wrench, following applicable IPC or IFGC guidelines for compression fitting assemblies.