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The MIDLAND INDUSTRIES 77145 is a 90-degree long-turn elbow designed for copper sweat (solder) connections in pressurized plumbing and hydronic systems. Manufactured from wrot copper, this fitting directs flow through a gradual 90-degree bend, reducing turbulence and pressure drop compared to standard short-turn elbows. It accepts 3/4-inch copper tubing on both ends using standard sweat connection method. Rated to 500 psi and suitable for service temperatures ranging from 32 degrees F to 200 degrees F, this elbow is well-suited for domestic water supply, hot and cold distribution lines, and low-pressure hydronic heating loops. Licensed plumbers and HVAC technicians are the primary installers.
This fitting is used in residential and light commercial plumbing installations wherever a long-radius 90-degree direction change is needed in a 3/4-inch copper line. The long-turn geometry is preferred in applications where maintaining flow velocity and minimizing friction loss is a priority, such as recirculation loops, hydronic supply and return lines, and domestic hot water distribution systems. It is installed using standard sweat-soldering technique with lead-free solder per code requirements.
Designed as an OEM-style sweat fitting compatible with standard 3/4-inch copper tubing in residential and commercial plumbing and hydronic heating systems.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the IPC. Shut off and drain the water supply before cutting into an existing line. Clean and flux all mating surfaces before soldering, and use lead-free solder as required by potable water system codes. Allow the joint to cool fully before restoring system pressure.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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