Resideo V8043E5020 Valve
The Resideo V8043E5020 is a heavy-duty 1-inch sweat hydronic zone valve engineered for precision flow control in closed-loop heating systems. This two-way normally closed valve utilizes a reliable 24VAC motorized actuator with a spring-return mechanism, ensuring positive shut-off upon power loss. Built for durability in demanding mechanical rooms, it features a forged brass body, a corrosion-resistant stainless steel stem, and a sector-shaped rubber plug for tight sealing. With a 3.5 Cv flow coefficient and a high close-off pressure rating of 20 psi, this low-voltage zone valve manages high-velocity circulation without chatter. The integrated end switch (normally open auxiliary switch) allows for seamless boiler pump sequencing, while the manual opener lever facilitates system filling and air purging during initial commissioning or troubleshooting. This model includes 18-inch lead wires for fast electrical termination and is compatible with standard 24V thermostat controls.
- Optimized Hydronic Control: Designed for high-head circulating systems requiring a 1-inch sweat connection and high close-off capacity.
- Reliable Actuation: The synchronous motor and spring return provide consistent performance across thousands of cycles.
- System Integration: Built-in end switch allows for direct wiring to circulate pumps or boiler controllers for efficient staging.
- Contractor Friendly: The quick-fit motor head can be replaced without breaking the plumbing line, reducing downtime.
Common Installation Questions
Can this valve be installed in a horizontal or vertical orientation?
The V8043E5020 can be mounted in any orientation except with the actuator head below the horizontal plane to prevent moisture buildup within the motor housing.
What is the maximum ambient temperature for the actuator?
The actuator is rated for ambient temperatures up to 125°F (52°C), making it suitable for tight mechanical spaces and near-boiler piping.
How do I use the manual lever for system purging?
The manual lever should be moved to the "MAN. OPEN" position to lock the valve open during filling or draining; it will automatically reset to the "AUTO" position once the motor is energized.
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: $158.46
-65%$158.46
$55.46Resideo V8043E5020 Valve
The Resideo V8043E5020 is a heavy-duty 1-inch sweat hydronic zone valve engineered for precision flow control in closed-loop heating systems. This two-way normally closed valve utilizes a reliable 24VAC motorized actuator with a spring-return mechanism, ensuring positive shut-off upon power loss. Built for durability in demanding mechanical rooms, it features a forged brass body, a corrosion-resistant stainless steel stem, and a sector-shaped rubber plug for tight sealing. With a 3.5 Cv flow coefficient and a high close-off pressure rating of 20 psi, this low-voltage zone valve manages high-velocity circulation without chatter. The integrated end switch (normally open auxiliary switch) allows for seamless boiler pump sequencing, while the manual opener lever facilitates system filling and air purging during initial commissioning or troubleshooting. This model includes 18-inch lead wires for fast electrical termination and is compatible with standard 24V thermostat controls.
- Optimized Hydronic Control: Designed for high-head circulating systems requiring a 1-inch sweat connection and high close-off capacity.
- Reliable Actuation: The synchronous motor and spring return provide consistent performance across thousands of cycles.
- System Integration: Built-in end switch allows for direct wiring to circulate pumps or boiler controllers for efficient staging.
- Contractor Friendly: The quick-fit motor head can be replaced without breaking the plumbing line, reducing downtime.
Common Installation Questions
Can this valve be installed in a horizontal or vertical orientation?
The V8043E5020 can be mounted in any orientation except with the actuator head below the horizontal plane to prevent moisture buildup within the motor housing.
What is the maximum ambient temperature for the actuator?
The actuator is rated for ambient temperatures up to 125°F (52°C), making it suitable for tight mechanical spaces and near-boiler piping.
How do I use the manual lever for system purging?
The manual lever should be moved to the "MAN. OPEN" position to lock the valve open during filling or draining; it will automatically reset to the "AUTO" position once the motor is energized.
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 V8043E5020 is a heavy-duty 1-inch sweat hydronic zone valve engineered for precision flow control in closed-loop heating systems. This two-way normally closed valve utilizes a reliable 24VAC motorized actuator with a spring-return mechanism, ensuring positive shut-off upon power loss. Built for durability in demanding mechanical rooms, it features a forged brass body, a corrosion-resistant stainless steel stem, and a sector-shaped rubber plug for tight sealing. With a 3.5 Cv flow coefficient and a high close-off pressure rating of 20 psi, this low-voltage zone valve manages high-velocity circulation without chatter. The integrated end switch (normally open auxiliary switch) allows for seamless boiler pump sequencing, while the manual opener lever facilitates system filling and air purging during initial commissioning or troubleshooting. This model includes 18-inch lead wires for fast electrical termination and is compatible with standard 24V thermostat controls.
- Optimized Hydronic Control: Designed for high-head circulating systems requiring a 1-inch sweat connection and high close-off capacity.
- Reliable Actuation: The synchronous motor and spring return provide consistent performance across thousands of cycles.
- System Integration: Built-in end switch allows for direct wiring to circulate pumps or boiler controllers for efficient staging.
- Contractor Friendly: The quick-fit motor head can be replaced without breaking the plumbing line, reducing downtime.
Common Installation Questions
Can this valve be installed in a horizontal or vertical orientation?
The V8043E5020 can be mounted in any orientation except with the actuator head below the horizontal plane to prevent moisture buildup within the motor housing.
What is the maximum ambient temperature for the actuator?
The actuator is rated for ambient temperatures up to 125°F (52°C), making it suitable for tight mechanical spaces and near-boiler piping.
How do I use the manual lever for system purging?
The manual lever should be moved to the "MAN. OPEN" position to lock the valve open during filling or draining; it will automatically reset to the "AUTO" position once the motor is energized.
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.
