Description
The Siemens Building Technology 257-02069B is a complete 3-way mixing valve assembly engineered for precision flow control in commercial HVAC hydronic and pneumatic systems. Combining a robust forged brass valve body with a factory-matched pneumatic actuator, this assembly delivers reliable, repeatable performance in demanding building automation applications.
Valve Body Features
- 3-way mixing configuration for blending or diverting fluid streams
- 1/2″ NPT end connections for straightforward pipe installation
- 4.0 Cv flow coefficient for accurate flow capacity sizing
- Linear flow characteristic for proportional, stable control response
- Forged brass body construction for durability and corrosion resistance
- Brass trim components for long service life in hydronic applications
Pneumatic Actuator Features
- Factory-assembled pneumatic actuator for plug-and-play installation
- 3–8 PSI spring range for direct compatibility with standard pneumatic control systems
- Designed to interface with pneumatic building automation controllers and air-handling systems
Applications
- Commercial and industrial HVAC hydronic systems
- Chilled water and hot water mixing or diverting circuits
- Pneumatically controlled air handling units (AHUs) and fan coil units
- Building automation and energy management systems requiring precise valve modulation
Why Choose the Siemens 257-02069B?
As a factory-assembled valve and actuator package, the 257-02069B eliminates field-matching guesswork and ensures optimal performance from day one. The forged brass body and brass trim provide superior resistance to corrosion and wear, while the linear flow characteristic allows building automation systems to maintain precise temperature and flow control. The 3–8 PSI spring range actuator integrates seamlessly into existing pneumatic control infrastructure, making this assembly an ideal drop-in solution for retrofit or new construction projects.
Reviews
There are no reviews yet.