
Resideo V8043F1051 Valve
The Resideo V8043F1051 is a 1-inch low voltage zone valve designed for hydronic heating systems, featuring a 2-way normally closed configuration with a 3.5 Cv flow capacity. Built with a brass body and high-grade stainless steel stem, this unit maintains a 20 PSI close-off pressure, ensuring reliable flow control in high-head applications. The 24VAC motor utilizes a spring return mechanism to provide a secure seal upon power loss. This model includes a normally open SPST auxiliary switch (end switch) for direct boiler or circulator relay activation. Contractors will appreciate the sweat connection and screwed terminal block for simplified field wiring. For system maintenance or initial filling, the manual opener allows for operation without power. This 1-inch sweat zone valve is engineered for high-demand residential and light commercial hydronic loops where durability and hydronic heating control precision are non-negotiable.
- Efficient System Balancing: The 3.5 Cv rating and high 20 PSI close-off pressure prevent ghost flows and ensure precise individual zone control.
- Simplified Installation: Features a sweat connection and integrated terminal block for fast, reliable wiring to 24V controllers.
- Manual Override Capability: Built-in manual lever facilitates system air purging and manual operation during power outages.
- Integrated End Switch: The SPST auxiliary switch allows for seamless communication with the circular pump or boiler burner circuit.
Common Questions
Can the actuator be replaced without draining the hydronic system?
Yes, the power head can be removed and replaced without breaking the plumbing line or draining the loop, reducing downtime during service calls.
What is the maximum fluid temperature rating for this valve?
The V8043F1051 is rated for standard hydronic applications with a maximum ambient temperature of 125°F and fluid temperatures up to 200°F.
How do I wire the V8043F end switch for a circulator pump?
The SPST auxiliary switch is used to close the circuit to your relay or boiler T-T terminals once the valve is fully open, ensuring the pump only runs when flow is clear.
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: $162.55
-65%$162.55
$56.89Resideo V8043F1051 Valve
The Resideo V8043F1051 is a 1-inch low voltage zone valve designed for hydronic heating systems, featuring a 2-way normally closed configuration with a 3.5 Cv flow capacity. Built with a brass body and high-grade stainless steel stem, this unit maintains a 20 PSI close-off pressure, ensuring reliable flow control in high-head applications. The 24VAC motor utilizes a spring return mechanism to provide a secure seal upon power loss. This model includes a normally open SPST auxiliary switch (end switch) for direct boiler or circulator relay activation. Contractors will appreciate the sweat connection and screwed terminal block for simplified field wiring. For system maintenance or initial filling, the manual opener allows for operation without power. This 1-inch sweat zone valve is engineered for high-demand residential and light commercial hydronic loops where durability and hydronic heating control precision are non-negotiable.
- Efficient System Balancing: The 3.5 Cv rating and high 20 PSI close-off pressure prevent ghost flows and ensure precise individual zone control.
- Simplified Installation: Features a sweat connection and integrated terminal block for fast, reliable wiring to 24V controllers.
- Manual Override Capability: Built-in manual lever facilitates system air purging and manual operation during power outages.
- Integrated End Switch: The SPST auxiliary switch allows for seamless communication with the circular pump or boiler burner circuit.
Common Questions
Can the actuator be replaced without draining the hydronic system?
Yes, the power head can be removed and replaced without breaking the plumbing line or draining the loop, reducing downtime during service calls.
What is the maximum fluid temperature rating for this valve?
The V8043F1051 is rated for standard hydronic applications with a maximum ambient temperature of 125°F and fluid temperatures up to 200°F.
How do I wire the V8043F end switch for a circulator pump?
The SPST auxiliary switch is used to close the circuit to your relay or boiler T-T terminals once the valve is fully open, ensuring the pump only runs when flow is clear.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Resideo V8043F1051 is a 1-inch low voltage zone valve designed for hydronic heating systems, featuring a 2-way normally closed configuration with a 3.5 Cv flow capacity. Built with a brass body and high-grade stainless steel stem, this unit maintains a 20 PSI close-off pressure, ensuring reliable flow control in high-head applications. The 24VAC motor utilizes a spring return mechanism to provide a secure seal upon power loss. This model includes a normally open SPST auxiliary switch (end switch) for direct boiler or circulator relay activation. Contractors will appreciate the sweat connection and screwed terminal block for simplified field wiring. For system maintenance or initial filling, the manual opener allows for operation without power. This 1-inch sweat zone valve is engineered for high-demand residential and light commercial hydronic loops where durability and hydronic heating control precision are non-negotiable.
- Efficient System Balancing: The 3.5 Cv rating and high 20 PSI close-off pressure prevent ghost flows and ensure precise individual zone control.
- Simplified Installation: Features a sweat connection and integrated terminal block for fast, reliable wiring to 24V controllers.
- Manual Override Capability: Built-in manual lever facilitates system air purging and manual operation during power outages.
- Integrated End Switch: The SPST auxiliary switch allows for seamless communication with the circular pump or boiler burner circuit.
Common Questions
Can the actuator be replaced without draining the hydronic system?
Yes, the power head can be removed and replaced without breaking the plumbing line or draining the loop, reducing downtime during service calls.
What is the maximum fluid temperature rating for this valve?
The V8043F1051 is rated for standard hydronic applications with a maximum ambient temperature of 125°F and fluid temperatures up to 200°F.
How do I wire the V8043F end switch for a circulator pump?
The SPST auxiliary switch is used to close the circuit to your relay or boiler T-T terminals once the valve is fully open, ensuring the pump only runs when flow is clear.
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.












