Description
The Honeywell V8043G1125 is a reliable, hydronic zone valve engineered for precise flow control in residential and light commercial hot water heating systems. Featuring a 1/2″ inverted flare connection, this normally closed valve opens on a call for heat and spring-returns to the closed position when power is removed — ensuring fail-safe operation and protecting your system at all times.
Key Features
- 1/2″ inverted flare connections for easy, leak-resistant installation
- 24 VAC operating voltage for compatibility with standard low-voltage control systems
- Normally closed (NC) operation — opens on power, spring-returns to close on power loss
- 15-second nominal opening time for responsive zone control
- 3.5 Cv flow coefficient for efficient water flow management
- 20 PSI maximum differential pressure (close-off) for dependable sealing
- 18″ lead wires for flexible wiring connections in tight installations
- Spring return to close mechanism ensures fail-safe, power-off closure
- Normally open SPST auxiliary switch for end-switch signaling to boiler or pump controls
- Manual opener allows valve actuation without power for system testing and commissioning
Specifications
- SKU: V8043G1125
- Brand: Honeywell
- Connection Type: 1/2″ Inverted Flare
- Voltage: 24 VAC
- Valve Action: Normally Closed
- Opening Time: 15 Seconds (Nominal)
- Flow Coefficient (Cv): 3.5
- Maximum Differential Pressure (Close-Off): 20 PSI
- Lead Wire Length: 18″
- Return Mechanism: Spring Return to Close
- Auxiliary Switch: Normally Open SPST
- Manual Opener: Included
Applications
- Residential and light commercial hydronic heating systems
- Hot water baseboard and radiant floor heating zone control
- Multi-zone boiler systems requiring end-switch control
- Systems requiring fail-safe, spring-return valve operation
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