Description
Overview
The Siemens Building Technology 257-02032 is a 2-way, normally open valve assembly engineered for precise flow control in commercial HVAC and building automation systems. Combining a forged brass body with brass trim and a factory-matched pneumatic actuator, this assembly delivers reliable, repeatable performance in hydronic heating and cooling applications.
Key Features
- 2-way, normally open (N/O) configuration for fail-safe operation
- 1/2″ NPT end connections for straightforward installation into standard piping
- 0.63 Cv flow coefficient with equal percentage flow characteristic for accurate modulating control
- Forged brass valve body with brass trim for durability and corrosion resistance
- Integrated pneumatic actuator with 3–8 PSI spring range for direct compatibility with standard pneumatic control systems
- Factory-assembled valve and actuator for simplified installation and reduced commissioning time
Specifications
- SKU: 257-02032
- Brand: Siemens Building Technology
- Valve Type: 2-Way, Normally Open
- Connection Size: 1/2″ NPT
- Flow Coefficient (Cv): 0.63
- Flow Characteristic: Equal Percentage
- Body Material: Forged Brass
- Trim Material: Brass
- Actuator Type: Pneumatic
- Spring Range: 3–8 PSI
Applications
- Commercial HVAC hydronic heating and cooling coil control
- Building automation and pneumatic control systems
- Fan coil units, air handling units, and terminal equipment
- Modulating flow control in small-diameter piping systems
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