Resideo - Honeywell Home V4043A1002

V4043A1002 is a 120V, 1/2 inch flare, 2‑way normally closed zone valve with Cv=3.5 and no auxiliary switch. Designed for residential HVAC zoning, this valve delivers consistent flow and dependable shutoff, helping balance comfort across multiple zones.

Manufactured by Resideo Honeywell Home, this valve combines rugged construction with easy installation. The 1/2" flare fittings simplify piping, while the 2‑way N.C. design provides a fail-safe path when a zone is not requesting heat or cooling. With a 120V coil, it links directly to standard control panels and boiler circuits, offering reliable performance in both new builds and retrofits. The compact footprint and durable materials ensure long service life in demanding residential environments.

• 2‑way normally closed zone valve for efficient zoning
• 1/2" flare connections for quick, secure installation
• 120V coil voltage compatible with standard control circuits
• Cv=3.5 delivers reliable flow across zones
• No auxiliary switch included to reduce upfront cost

Ideal for hydronic heating and cooling systems, the V4043A1002 supports balanced flow, system reliability, and energy-conscious operation across residential applications.