Description
The Siemens 259-02032 is a complete 2-way normally open valve assembly engineered for precise hydronic and HVAC flow control in commercial building automation systems. Combining a forged brass valve body with a non-spring return floating actuator, this assembly delivers reliable, repeatable performance in heating and cooling applications.
Key Features
- 2-way, normally open (N/O) configuration for fail-safe flow control
- 1/2″ NPT pipe connection for easy installation into standard piping systems
- 24Vac actuator power supply — compatible with standard BAS and DDC control systems
- 0.63 Cv flow coefficient for accurate, low-flow hydronic circuit sizing
- Equal percentage flow characteristic for superior modulating control across the full stroke range
- Forged brass valve body with brass trim for durability and corrosion resistance
- Non-spring return floating actuator — holds last position on power loss
- Pre-assembled valve and actuator combination for simplified installation and commissioning
Application
The Siemens 259-02032 is ideal for terminal unit control in fan coil units, air handling units, and hydronic heating and cooling coil applications. The equal percentage flow characteristic ensures stable control loop performance, while the forged brass body withstands the demands of continuous commercial duty. The non-spring return floating actuator is well-suited for applications where valve position retention on power loss is preferred over fail-open or fail-closed spring return action.
Specifications
- SKU: 259-02032
- Brand: Siemens Building Technology
- Valve Configuration: 2-Way, Normally Open
- Connection Size: 1/2″ NPT
- Actuator Voltage: 24Vac
- Flow Coefficient (Cv): 0.63
- Flow Characteristic: Equal Percentage
- Valve Body Material: Forged Brass
- Trim Material: Brass
- Actuator Type: Non-Spring Return, Floating
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