Description
The Siemens Building Technology 658-0012 is a 1-inch normally open (N/O) pneumatic angle valve engineered for reliable flow control in commercial HVAC and building automation systems. With a Cv flow coefficient of 10 and a pneumatic spring range of 2–6 lbs, this angle valve delivers accurate, responsive modulation to meet the demands of hydronic heating, cooling, and process control applications.
Designed to integrate seamlessly with pneumatic control systems, the 658-0012 features an angle-body configuration that minimizes pressure drop and simplifies piping in tight mechanical spaces. The normally open fail-safe action ensures that flow is maintained in the event of air supply loss, providing an added layer of system protection.
Key Features
- 1-inch angle valve body for efficient flow and compact installation
- Normally open (N/O) fail-safe action — opens on loss of pneumatic signal
- Pneumatic spring range: 2–6 lbs for precise modulating control
- Cv flow coefficient of 10 for accurate flow capacity sizing
- Angle-body design reduces pressure drop and simplifies piping layouts
- Engineered for commercial HVAC, hydronic, and building automation applications
- Siemens Building Technology quality construction for long-term reliability
Specifications
- SKU: 658-0012
- Brand: Siemens Building Technology
- Valve Size: 1 inch
- Valve Type: Angle Valve
- Fail-Safe Action: Normally Open (N/O)
- Pneumatic Spring Range: 2–6 lbs
- Cv (Flow Coefficient): 10
Applications
- Commercial HVAC hydronic heating and cooling systems
- Building automation and pneumatic control systems
- Fan coil units, air handling units, and terminal equipment
- Process control applications requiring modulating flow regulation
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