Johnson Controls V47AA-1C Pneumatic Valve Actuator Positioner - High Precision Flow Control for HVAC, Industrial Automation & Process Control Systems

The V47 is a temperature actuated modulating valve that regulates the flow of water or glycol to maintain a desired temperature. Three temperature ranges for each valve size are available. Many valves come with a removable bypass plug that can be replaced by the bypass orifice provided separately with each valve. Valve action is open on temperature increase. For open on temperature decrease models, contact Application Engineering.

No close fitting sliding parts in water passages

Range spring does not come in contact with the cooling water

Easy manual flushing, if required

Valve design minimizes chatter and water hammer