Description
The Siemens Building Technology 599-10302 is a precision-engineered two-way ball valve designed for reliable flow control in commercial HVAC and building automation hydronic systems. Featuring an equal percentage flow characteristic, this valve delivers highly accurate and responsive modulating control, making it an ideal choice for heating and cooling coil applications where tight temperature regulation is essential.
Durable, High-Quality Construction
Built for long-term performance in demanding environments, the 599-10302 combines a robust brass body with a chrome-plated brass ball and brass stem. This all-brass construction provides excellent corrosion resistance and durability, ensuring reliable operation across a wide range of hydronic media and system pressures.
Key Specifications
- SKU: 599-10302
- Brand: Siemens Building Technology
- Valve Type: Two-Way Ball Valve
- Connection Size: 1/2″ NPT
- Flow Coefficient (Cv): 1.0
- Flow Characteristic: Equal Percentage
- Body Material: Brass
- Ball Material: Chrome-Plated Brass
- Stem Material: Brass
Equal Percentage Flow Characteristic
The equal percentage flow characteristic ensures that equal increments of valve travel produce equal percentage changes in flow rate. This non-linear response provides superior controllability at low flow conditions and smooth, stable modulation across the full operating range — a critical advantage in variable-flow hydronic systems.
Designed for Building Automation
As part of the Siemens Building Technology valve portfolio, the 599-10302 is engineered to pair seamlessly with Siemens actuators for fully integrated building automation and energy management applications. Its 1/2″ NPT connections allow for straightforward installation into standard piping configurations.
Typical Applications
- Commercial HVAC heating and cooling coils
- Hydronic terminal units and fan coil units
- Building automation and energy management systems
- Variable flow hydronic distribution systems







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