Description
The Honeywell V8043F1135 is a reliable, hydronic zone valve engineered for precise flow control in residential and light commercial heating and cooling systems. Featuring a 3/4″ sweat connection and a 24 VAC power supply, this normally closed valve delivers consistent, dependable performance in zoned hydronic applications.
Key Features
- 3/4″ sweat (solder) end connections for secure, leak-free installation
- 24 VAC operating voltage with screw terminal block wiring for simplified field connections
- Normally closed operation — valve closes automatically upon power loss for fail-safe system protection
- Spring return to close mechanism ensures reliable shutoff without auxiliary power
- 15-second nominal opening time for smooth, controlled flow transitions
- 3.5 Cv flow coefficient for optimized hydronic system performance
- 20 PSI maximum differential pressure (closeoff) rating
- Normally open SPST auxiliary switch for end-switch wiring to boilers, circulators, or zone panels
- Manual open feature allows valve operation during system commissioning or power outages
Specifications
- SKU: V8043F1135
- Brand: Honeywell
- Connection Type: 3/4″ Sweat (Solder)
- Voltage: 24 VAC
- Valve Action: Normally Closed
- Return Mechanism: Spring Return to Close
- Opening Time: 15 Seconds (Nominal)
- Flow Coefficient (Cv): 3.5
- Maximum Differential Pressure (Closeoff): 20 PSI
- Auxiliary Switch: Normally Open SPST
- Wiring: Screw Terminal Block
- Manual Open: Yes
Applications
- Residential and light commercial hydronic heating systems
- Zoned hot water baseboard and radiant floor heating
- Multi-zone boiler systems requiring end-switch control
- Chilled water cooling coil applications
The V8043F1135’s built-in SPST auxiliary switch makes it easy to wire directly to a boiler or circulator pump, enabling the heating source to fire only when a zone calls for heat — improving system efficiency and equipment longevity. The manual open lever is an added convenience for startup, balancing, and service scenarios.
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