Description
Mueller Industries AU17864 7/8″ 3-Way Ball Valve
The Mueller Industries AU17864 is a 7/8″ 3-Way Ball Valve engineered for demanding HVAC and refrigeration applications. Designed to provide precise flow control, diversion, and isolation, this valve is a trusted solution for technicians and contractors who require reliable performance in refrigerant lines, hydronic systems, and other fluid-handling circuits.
Key Features
- 7/8″ port size for compatibility with standard HVAC and refrigeration line configurations
- 3-way design enables flow diversion, mixing, or isolation in a single compact valve body
- Durable ball valve construction for long service life and low-torque operation
- Manufactured by Mueller Industries, a trusted name in HVAC valves and fittings
- Suitable for use in refrigerant lines, hydronic piping, and related fluid systems
- Compact form factor simplifies installation in tight spaces
Why Choose Mueller Industries?
Mueller Industries is a globally recognized manufacturer of copper, brass, and plastic fittings and valves. Their products are built to meet the rigorous demands of professional HVAC and refrigeration installations, ensuring consistent quality and reliability on every job.
Typical Applications
- Refrigerant flow diversion and isolation
- Hydronic heating and cooling systems
- Commercial and residential HVAC installations
- Service and maintenance valve applications







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