Description
Honeywell VP522B1003 Pneumatic Sequencing Water Valve
The Honeywell VP522B1003 is a pneumatically operated sequencing water valve engineered for precise, reliable flow control in commercial HVAC hydronic systems. Featuring a 1/2″ O.D. / 3/8″ nominal body with an adjustable spring range, this valve is designed to sequence heating and cooling operations in response to pneumatic control signals — making it an ideal solution for fan coil units, unit ventilators, and other pneumatically controlled hydronic applications.
Key Features
- 1/2″ O.D. / 3/8″ nominal valve body for easy integration into existing hydronic piping
- Pneumatic sequencing operation with adjustable spring range for flexible setpoint configuration
- Port A flow coefficient: 1.5 Cv
- Port B flow coefficient: 1.5 Cv
- 1/8″ NPT air connections for pneumatic signal input
- Suitable for use with both hot and cold water systems
- Designed for commercial HVAC hydronic control applications
Applications
- Fan coil unit water flow control
- Unit ventilator heating and cooling sequencing
- Pneumatically controlled hydronic systems
- Two-pipe and four-pipe changeover systems
Specifications
- SKU: VP522B1003
- Valve Size: 1/2″ O.D. / 3/8″ Nominal
- Port A Cv: 1.5
- Port B Cv: 1.5
- Air Connection: 1/8″ NPT
- Spring Range: Adjustable
- Media: Hot and Cold Water
- Actuation Type: Pneumatic
- Brand: Honeywell
