Description
The Siemens Building Technology 277-03188 is a complete valve and actuator assembly engineered for precise flow control in commercial HVAC hydronic and pneumatic systems. This factory-matched assembly pairs a 2-way, normally closed control valve with a heavy-duty 8-inch pneumatic actuator, delivering reliable, fail-safe operation right out of the box.
Valve Features
- 2-Way, Normally Closed (NC) configuration — fails closed on loss of air signal for inherent system protection
- 2-inch NPT end connections for straightforward pipe installation
- 40 Cv flow coefficient for high-capacity flow applications
- Equal Percentage flow characteristic for precise, stable modulating control across the full operating range
- Bronze valve body with brass trim — corrosion-resistant construction suited for chilled water, hot water, and steam service
Pneumatic Actuator Features
- 8-inch pneumatic actuator for high-force, reliable valve positioning
- 5 PSI spring span with adjustable spring range for flexible system calibration
- Compatible with standard pneumatic control signals (3–13 PSI or 5–10 PSI depending on field adjustment)
- Adjustable spring range allows field tuning to match specific control system requirements
Applications
- Commercial building HVAC hydronic systems
- Chilled water and hot water coil control
- Air handling unit (AHU) and fan coil unit (FCU) valve control
- Pneumatic building automation and control systems
Why Choose Siemens 277-03188
Siemens Building Technology is a globally recognized leader in HVAC controls and building automation. The 277-03188 assembly is factory-matched and tested, eliminating compatibility guesswork and reducing installation time. The equal percentage flow characteristic ensures smooth, linear control response, minimizing hunting and improving system efficiency. The bronze body and brass trim construction provide long service life in demanding hydronic environments.
Reviews
There are no reviews yet.