Description
The Belimo Z3100Q-J is a 1-inch, 3-way zone valve engineered for reliable flow control in hydronic heating and cooling applications. Featuring a Cv flow coefficient of 4.4, this valve delivers precise modulating or on/off control of water, glycol solutions, and other compatible hydronic fluids — making it an ideal choice for fan coil units, air handling units, and terminal equipment in commercial and light commercial HVAC systems.
Belimo’s Z-series zone valves are renowned for their robust construction, tight shut-off performance, and long service life. The 3-way configuration allows for mixing or diverting flow, providing flexible system design options. Designed to pair with Belimo actuators, the Z3100Q-J integrates seamlessly into building automation and zone control systems for optimized comfort and energy efficiency.
Key Features
- 1-inch valve body for standard hydronic piping connections
- 3-way configuration supports mixing or diverting applications
- Cv 4.4 flow coefficient for accurate, application-matched flow control
- Designed for use with compatible Belimo actuators
- Suitable for heating and cooling hydronic systems
- Ideal for fan coil units, air handlers, and terminal equipment
- Durable construction for long-term, low-maintenance operation
- Compatible with water and glycol-based hydronic fluids
Typical Applications
- Commercial and light commercial HVAC hydronic systems
- Fan coil unit (FCU) flow control
- Air handling unit (AHU) coil control
- Zone-level heating and cooling control
- Building automation system (BAS) integration
Why Choose Belimo?
Belimo is a globally recognized leader in actuator and valve technology, trusted by HVAC professionals for precision, reliability, and ease of installation. The Z3100Q-J upholds that standard, delivering consistent performance across a wide range of hydronic system configurations.







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