Description
Product Overview
The Honeywell VP527A1059 is a 1/2″ O.D. (3/8″ nominal) two-way, straight-through pneumatic water valve engineered for precise proportional control in commercial and industrial HVAC hydronic systems. With a 0.63 Cv flow coefficient and a 2–5 psi spring range, this normally open valve delivers reliable modulating performance for both hot and cold water applications.
Key Features
- Pipe size: 1/2″ O.D. / 3/8″ nominal straight-through body
- Valve configuration: Two-way, straight-through flow path
- Flow coefficient: 0.63 Cv for accurate proportional flow control
- Spring range: 2–5 psi pneumatic actuation
- Valve action: Proportional, normally open (N.O.)
- Air connections: Push-on fittings compatible with 1/4″ O.D. plastic tubing
- Media compatibility: Hot or cold water service
- Maximum working pressure: 30 psi
Application
The VP527A1059 is ideal for use in pneumatically controlled HVAC systems where modulating water flow is required. The normally open valve action ensures water flow is maintained in the event of air supply loss, making it a reliable choice for heating and cooling coil control in commercial buildings. Its push-on air connections simplify installation with standard 1/4″ O.D. plastic pneumatic tubing.
Specifications
- Brand: Honeywell
- SKU / Part Number: VP527A1059
- Nominal Pipe Size: 3/8″
- Tube O.D.: 1/2″
- Valve Type: Two-way, straight-through
- Cv: 0.63
- Spring Range: 2–5 psi
- Control Action: Proportional, Normally Open
- Air Connection: Push-on for 1/4″ O.D. plastic tubing
- Media: Hot or cold water
- Maximum Working Pressure: 30 psi
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