Description
The Honeywell VP522A1047 is a pneumatic sequencing water valve engineered for precise, pressure-actuated control of hot and cold water in commercial HVAC hydronic systems. With a 7/8″ O.D. / 3/4″ nominal body and a 2–13 PSI spring range, this valve delivers reliable sequenced operation across a wide range of pneumatic control applications.
Key Features
- 7/8″ O.D. / 3/4″ nominal valve body for standard hydronic piping compatibility
- 2–13 PSI spring range for accurate pneumatic sequencing control
- Port A flow coefficient: Cv 4.0 for high-flow capacity
- Port B flow coefficient: Cv 2.5 for secondary circuit control
- Suitable for both hot and cold water service
- 1/8″ NPT air connections for easy pneumatic line hookup
- Designed for use in pneumatic control systems requiring sequenced valve operation
Application
The VP522A1047 is ideal for commercial and industrial HVAC systems where pneumatic sequencing of heating and cooling water circuits is required. The dual-port design with differing Cv values allows precise balancing of flow between two circuits, making it well-suited for fan coil units, air handling units, and other hydronic terminal equipment controlled by pneumatic building automation systems.
Specifications
- Brand: Honeywell
- SKU / Part Number: VP522A1047
- Valve Body Size: 7/8″ O.D. / 3/4″ Nominal
- Spring Range: 2–13 PSI
- Port A Cv: 4.0
- Port B Cv: 2.5
- Media: Hot Water / Cold Water
- Air Connection: 1/8″ NPT
- Valve Type: Pneumatic Sequencing Water Valve
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