Description
The Wayne Combustion 61803 is a two-way, normally closed modulating zone valve engineered for precise hydronic and HVAC system flow control. Featuring a 3/4″ sweat connection and a 4.0 Cv flow coefficient, this valve delivers reliable, proportional modulation across a wide range of building automation and zone control applications.
Built with a spring-return actuator mechanism, the 61803 automatically returns to the normally closed position upon loss of power, providing a fail-safe operation that protects your system. The 24VAC power supply is compatible with standard HVAC control systems, and the valve accepts multiple industry-standard control signal inputs, making it highly versatile for integration with virtually any building automation or zone control platform.
Key Features
- Two-way, normally closed valve assembly
- 3/4″ sweat (solder) end connections for easy copper pipe installation
- 4.0 Cv flow coefficient for reliable flow capacity
- 24VAC operating voltage — compatible with standard HVAC controls
- Spring return actuator — fails safely to the closed position on power loss
- Proportional modulating control for precise flow regulation
Compatible Control Signal Inputs
- 0–10 VDC
- 0–5 VDC
- 5–10 VDC
- 4–20 mA
Specifications
- SKU: 61803
- Brand: Wayne Combustion
- Valve Type: Two-Way, Normally Closed
- Connection Type: 3/4″ Sweat (Solder)
- Flow Coefficient (Cv): 4.0
- Control Voltage: 24VAC
- Control Signal: 0–10 VDC, 0–5 VDC, 5–10 VDC, or 4–20 mA Proportional
- Actuator Type: Spring Return
- Operation: Modulating
Applications
- Hydronic heating and cooling systems
- Zone control in commercial and residential HVAC systems
- Building automation system (BAS) integration
- Fan coil unit control
- Radiant heating systems
