Description
Overview
The Siemens Building Technology 268-03167 is a factory-assembled 2-way, normally open control valve engineered for precise hydronic flow regulation in commercial HVAC and building automation systems. The valve features an equal percentage flow characteristic, making it ideal for applications that require accurate modulation across a wide range of load conditions. A bronze body with brass trim provides excellent corrosion resistance and long service life in water and glycol systems.
Pneumatic Actuator
The integrated pneumatic actuator operates on a 3–8 PSI spring range, delivering reliable, fail-safe normally open operation. The pneumatic design is well-suited for building automation environments where compressed air control signals are already present, offering smooth and repeatable valve positioning without the need for electrical power at the actuator.
Key Specifications
- SKU / Part Number: 268-03167
- Configuration: 2-Way, Normally Open (N.O.)
- Connection Type: 1″ NPT
- Flow Coefficient (Cv): 10
- Flow Characteristic: Equal Percentage
- Body Material: Bronze
- Trim Material: Brass
- Actuator Type: Pneumatic
- Spring Range: 3–8 PSI
Features & Benefits
- Pre-assembled valve and actuator for quick installation
- Equal percentage flow characteristic for precise load-matched control
- Normally open, spring-return fail-safe operation
- Bronze body and brass trim for durability in hydronic applications
- 1″ NPT connections for straightforward pipe integration
- Pneumatic actuation compatible with standard building automation control air systems
- Compact, factory-tested assembly reduces commissioning time
Typical Applications
- Commercial HVAC hydronic heating and cooling coil control
- Air handling unit (AHU) hot water and chilled water coils
- Fan coil unit flow control
- Building automation systems utilizing pneumatic control signals
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