Siemens Building Technology 259-02062 2-Way Normally Open Valve Assembly 3/4" 6.3 Cv Stainless Steel

The Siemens Building Technology 259-02062 is a 2-way normally open zone valve assembly designed for HVAC building automation and control applications. This complete valve assembly features a 3/4-inch line size with a flow coefficient (Cv) rating of 6.3, making it suitable for medium-flow hydronic heating and cooling systems.

Key Features:

• 2-way normally open (N/O) configuration for fail-safe operation
• 3/4-inch female NPT x union male (FxUM) connection type
• Stainless steel trim construction for corrosion resistance and durability
• 6.3 Cv flow coefficient for efficient water flow control
• Electronic actuator with floating control and fail-in-place operation
• Part of the Powermite MT Series for terminal unit applications
• Suitable for use with water in hydronic HVAC systems

This valve assembly combines a precision globe valve body with an integrated electronic actuator, providing reliable zone control in building automation systems. The normally open design ensures water flow continues in the event of power loss, making it ideal for critical heating applications where flow must be maintained for system protection.