
Resideo V8043E1129 Valve
The Resideo V8043E1129 is a heavy-duty, 2-way normally closed zone valve designed for precision flow control in closed-loop hydronic systems. Engineered for reliability in residential and light commercial applications, this 24V motorized zone valve features a 1/2-inch inverted flare connection, making it a drop-in replacement for aged or failing actuators in tight baseboard enclosures. The spring return mechanism ensures the valve defaults to a closed position upon power loss, while the integrated manual opener allows for system filling or emergency operation without electrical signal.
Built with a forged brass body, stainless steel stem, and a high-tolerance brass seat, the V8043E1129 is rated for a 3.5 Cv flow capacity and a maximum close-off pressure of 20 psi. The inclusion of a normally open SPST auxiliary end switch allows for seamless integration with circulator pumps or boiler controllers, completing the call-for-heat circuit once the valve is fully articulated. With 18-inch lead wires and a compact powerhead that can be serviced without breaking plumbing lines, this low voltage zone valve is the industry standard for contractors prioritizing rapid installation and long-term system performance.
Key Benefits for HVAC Professionals- Serviceable Design: The entire powerhead and drive motor can be replaced without draining the hydronic system, significantly reducing billable hours on maintenance calls.
- Inverted Flare Fittings: Designed specifically for 1/2-inch inverted flare tubing, ensuring a leak-proof mechanical seal without the need for additional adapters.
- Integrated End Switch: Features a built-in SPST switch to automate boiler and pump cycling, optimizing energy efficiency across multiple heating zones.
- Manual Override: The manual lever provides immediate flow control during power outages or system commissioning, automatically resetting to 'auto' mode once 24V power is restored.
What is the maximum fluid temperature for this zone valve?
The Resideo V8043E1129 is rated for fluid temperatures ranging from 50°F to 200°F (10°C to 93°C), making it suitable for standard hot water heating loops.
Can the motor be replaced separately from the valve body?
Yes, the actuator motor (typically part number 802360JA) can be swapped out by removing a single screw, allowing for fast repairs without disturbing the brass valve body or the plumbing connections.
Is this valve suitable for potable water systems?
No, this hydronic zone valve is intended for closed-loop heating systems. It should not be used in open-loop or potable water applications where dissolved oxygen is present, as this can lead to premature corrosion.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $135.12
-65%$135.12
$47.29Resideo V8043E1129 Valve
The Resideo V8043E1129 is a heavy-duty, 2-way normally closed zone valve designed for precision flow control in closed-loop hydronic systems. Engineered for reliability in residential and light commercial applications, this 24V motorized zone valve features a 1/2-inch inverted flare connection, making it a drop-in replacement for aged or failing actuators in tight baseboard enclosures. The spring return mechanism ensures the valve defaults to a closed position upon power loss, while the integrated manual opener allows for system filling or emergency operation without electrical signal.
Built with a forged brass body, stainless steel stem, and a high-tolerance brass seat, the V8043E1129 is rated for a 3.5 Cv flow capacity and a maximum close-off pressure of 20 psi. The inclusion of a normally open SPST auxiliary end switch allows for seamless integration with circulator pumps or boiler controllers, completing the call-for-heat circuit once the valve is fully articulated. With 18-inch lead wires and a compact powerhead that can be serviced without breaking plumbing lines, this low voltage zone valve is the industry standard for contractors prioritizing rapid installation and long-term system performance.
Key Benefits for HVAC Professionals- Serviceable Design: The entire powerhead and drive motor can be replaced without draining the hydronic system, significantly reducing billable hours on maintenance calls.
- Inverted Flare Fittings: Designed specifically for 1/2-inch inverted flare tubing, ensuring a leak-proof mechanical seal without the need for additional adapters.
- Integrated End Switch: Features a built-in SPST switch to automate boiler and pump cycling, optimizing energy efficiency across multiple heating zones.
- Manual Override: The manual lever provides immediate flow control during power outages or system commissioning, automatically resetting to 'auto' mode once 24V power is restored.
What is the maximum fluid temperature for this zone valve?
The Resideo V8043E1129 is rated for fluid temperatures ranging from 50°F to 200°F (10°C to 93°C), making it suitable for standard hot water heating loops.
Can the motor be replaced separately from the valve body?
Yes, the actuator motor (typically part number 802360JA) can be swapped out by removing a single screw, allowing for fast repairs without disturbing the brass valve body or the plumbing connections.
Is this valve suitable for potable water systems?
No, this hydronic zone valve is intended for closed-loop heating systems. It should not be used in open-loop or potable water applications where dissolved oxygen is present, as this can lead to premature corrosion.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Resideo V8043E1129 is a heavy-duty, 2-way normally closed zone valve designed for precision flow control in closed-loop hydronic systems. Engineered for reliability in residential and light commercial applications, this 24V motorized zone valve features a 1/2-inch inverted flare connection, making it a drop-in replacement for aged or failing actuators in tight baseboard enclosures. The spring return mechanism ensures the valve defaults to a closed position upon power loss, while the integrated manual opener allows for system filling or emergency operation without electrical signal.
Built with a forged brass body, stainless steel stem, and a high-tolerance brass seat, the V8043E1129 is rated for a 3.5 Cv flow capacity and a maximum close-off pressure of 20 psi. The inclusion of a normally open SPST auxiliary end switch allows for seamless integration with circulator pumps or boiler controllers, completing the call-for-heat circuit once the valve is fully articulated. With 18-inch lead wires and a compact powerhead that can be serviced without breaking plumbing lines, this low voltage zone valve is the industry standard for contractors prioritizing rapid installation and long-term system performance.
Key Benefits for HVAC Professionals- Serviceable Design: The entire powerhead and drive motor can be replaced without draining the hydronic system, significantly reducing billable hours on maintenance calls.
- Inverted Flare Fittings: Designed specifically for 1/2-inch inverted flare tubing, ensuring a leak-proof mechanical seal without the need for additional adapters.
- Integrated End Switch: Features a built-in SPST switch to automate boiler and pump cycling, optimizing energy efficiency across multiple heating zones.
- Manual Override: The manual lever provides immediate flow control during power outages or system commissioning, automatically resetting to 'auto' mode once 24V power is restored.
What is the maximum fluid temperature for this zone valve?
The Resideo V8043E1129 is rated for fluid temperatures ranging from 50°F to 200°F (10°C to 93°C), making it suitable for standard hot water heating loops.
Can the motor be replaced separately from the valve body?
Yes, the actuator motor (typically part number 802360JA) can be swapped out by removing a single screw, allowing for fast repairs without disturbing the brass valve body or the plumbing connections.
Is this valve suitable for potable water systems?
No, this hydronic zone valve is intended for closed-loop heating systems. It should not be used in open-loop or potable water applications where dissolved oxygen is present, as this can lead to premature corrosion.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












