Description
The Siemens Building Technology 656-0019 is a 1/2-inch normally open (N/O) angle-body control valve engineered for reliable flow regulation in commercial HVAC, hydronic, and building automation systems. With a Cv rating of 2.1 and a 5/10 PSI pressure range, this valve delivers accurate and repeatable control performance in demanding building mechanical applications.
Key Features
- 1/2″ angle-body valve configuration for space-efficient piping installations
- Normally Open (N/O) operation — defaults to open position on loss of signal or power
- Cv flow coefficient of 2.1 for precise flow capacity management
- 5/10# (5–10 PSI) pressure rating suitable for low-to-medium pressure hydronic and steam systems
- Designed for integration with Siemens Building Technology control systems
- Angle body design reduces pressure drop and simplifies piping layouts
- Built to Siemens’ commercial-grade quality standards for long service life
Applications
- Commercial HVAC hydronic heating and cooling systems
- Building automation and direct digital control (DDC) systems
- Low-pressure steam and hot water distribution
- Fan coil units, air handling units, and terminal equipment
Specifications
- SKU: 656-0019
- Brand: Siemens Building Technology
- Pipe Size: 1/2″
- Valve Action: Normally Open (N/O)
- Body Style: Angle
- Cv Rating: 2.1
- Pressure Range: 5/10# (5–10 PSI)
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