Description
The Utica-Dunkirk 28654 is a complete 2-way, normally closed valve assembly engineered for reliable flow control in commercial HVAC and hydronic systems. Combining a durable bronze body globe valve with a responsive spring return pneumatic actuator, this assembly delivers precise, equal-percentage flow modulation to meet demanding building automation and control requirements.
Valve Specifications
- Configuration: 2-Way, Normally Closed (N/C)
- Connection Size: 3/4″ NPT
- Flow Coefficient: 7.5 Cv
- Flow Characteristic: Equal Percentage
- Body Material: Bronze
- Trim Material: Brass
- Valve Type: Globe Valve
Actuator Specifications
- Actuator Type: Spring Return Pneumatic
- Spring Range: 5–10 PSI
- Action: Normally Closed — spring returns valve to closed position on air loss
Key Features & Benefits
- Equal percentage flow characteristic ensures smooth, stable control across the full valve stroke
- Bronze body construction provides excellent corrosion resistance for water and steam service
- Brass trim delivers long-lasting sealing performance and durability
- Spring return pneumatic actuator provides fail-safe, normally closed operation — valve closes automatically on loss of control air pressure
- 5–10 PSI spring range compatible with standard pneumatic control systems
- Globe valve design offers tight shutoff and accurate throttling control
- Pre-assembled valve and actuator combination simplifies installation and reduces field labor
Typical Applications
- Commercial HVAC air handling unit coil control
- Hydronic heating and cooling systems
- Fan coil unit water flow regulation
- Pneumatically controlled building automation systems
- Chilled water and hot water distribution
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