Midland Industries 77511 Copper Reducing Tee 1-1/4x1x1

Product Description

The MIDLAND INDUSTRIES 77511 is a copper reducing tee designed for sweat (solder) connections in pressurized plumbing and HVAC hydronic systems. It features a 1-1/4 inch run on the first connection, reducing to 1 inch on both the second and third connections, allowing branch or main-line diameter changes within a single fitting. Rated to 500 psi and suitable for operating temperatures from 32 degrees F to 200 degrees F, this fitting is built for reliable service in residential and light commercial water distribution, radiant heating, and refrigeration piping where copper sweat fittings are specified.

This reducing tee is used wherever a copper sweat piping system requires a branch takeoff with a diameter step-down from a 1-1/4 inch main to 1 inch branch or run lines. Typical applications include domestic water supply distribution, hydronic heating loops, chilled water systems, and other closed-loop fluid circuits. It is installed by licensed plumbers and HVAC technicians working with Type L or Type M copper tubing in both new construction and retrofit projects.

Key Features

• Copper construction for corrosion resistance and long service life in wet systems
• Sweat (solder) connection type on all three ports for secure, leak-tight joints
• 500 psi pressure rating suitable for pressurized domestic and hydronic systems
• Temperature range of 32 degrees F to 200 degrees F covers standard water service conditions
• Reducing geometry - 1-1/4 inch C x 1 inch C x 1 inch C - consolidates diameter transitions in a single fitting

Compatibility

Designed as an OEM-style sweat fitting for copper tubing systems; compatible with standard 1-1/4 inch and 1 inch copper tubing conforming to ASTM B88 in Type K, L, or M wall designations.

Installation Notes

Installation should be performed by a licensed plumber following applicable local plumbing codes and IPC guidelines. Shut off and depressurize the system and drain all water from the affected lines before cutting and fitting. Clean all mating tube ends and fitting sockets thoroughly, apply flux, and solder using lead-free solder as required by potable water codes. Allow joints to cool completely before repressurizing the system and checking for leaks.