Siemens Building Technology 279-05980 2.5" Flanged Normally Open Control Valve 63 Cv

The Siemens Building Technology 279-05980 is a 2.5-inch flanged control valve designed for commercial HVAC and building automation applications. This normally open (N/O) valve features a flow coefficient (Cv) of 63, providing excellent flow capacity for medium to large hydronic systems.

Key Specifications:

• Port size: 2.5 inches with flanged connections for secure installation
• Valve configuration: Normally open (N/O) - valve is open when de-energized
• Flow coefficient (Cv): 63 for optimal flow control
• Pressure span: 5 PSI spring range for precise modulating control
• Flanged end connections for permanent piping installations

This control valve is engineered for integration with Siemens building automation systems, providing reliable modulating control of hot water, chilled water, or glycol solutions in heating and cooling applications. The flanged design ensures a secure, leak-free connection in professional hydronic systems, while the 5 PSI spring span allows for accurate control across varying system pressures.