Wayne Combustion 61803 3/4″ Sweat 2-Way NC Modulating Zone Valve, 24VAC

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