Resideo V8043A1003 Valve
The Resideo V8043A1003 Valve is a robust, 2-way normally closed zone valve designed for hydronic heating systems requiring reliable flow control. Featuring a 1/2 inch flare connection, this 24Vac motorized valve utilizes a high-torque spring return mechanism to ensure positive closure. The V8043A1003 is engineered with a forged brass body, a stainless steel stem, and a brass seat to provide maximum corrosion resistance and longevity in high-demand residential or commercial applications. With a 3.5 Cv flow coefficient and a 20 PSI close-off pressure rating, this motor-actuated valve handles standard circulator pump head pressures without bypass leakage. The unit includes 18-inch lead wires for simplified field wiring and a manual opener lever to facilitate system filling and air purging during initial commissioning. This low-voltage zone control valve is a standard replacement for maintaining hydronic equilibrium and precise temperature regulation in multi-zone boiler configurations.
Key Technical Benefits
- Fail-Safe Closure: Mechanical spring return ensures the valve closes immediately upon power loss to prevent overheating or ghost flows.
- Durable Construction: The forged brass body and stainless steel actuator stem minimize mineral buildup and seat wear.
- Manual Override: Integrated manual opener allows technicians to lock the valve open for system drainage or troubleshooting without 24V power.
- Standard Compatibility: Designed for seamless integration with standard 24Vac thermostats and zone control panels.
- Optimized Flow: A 3.5 Cv rating ensures minimal pressure drop across the valve, maintaining system efficiency.
Common Installation Questions
Will this valve work in a high-head pressure system?
The V8043A1003 is rated for a 20 PSI maximum close-off pressure. If your circulator pump generates head pressure exceeding this value, the valve may experience "lift-off" or leakage when closed.
Does this unit come with the end switch?
No, the V8043A model is the standard 2-wire configuration without an integrated end switch for boiler firing. For applications requiring an end switch, the V8043G series is typically necessary.
Can the actuator head be replaced without draining the system?
Yes, the Resideo zone valve features a twist-lock or screw-on power head design, allowing for electrical component replacement without breaking the 1/2 inch flare plumbing connections.
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: $135.20
-65%$135.20
$47.32Resideo V8043A1003 Valve
The Resideo V8043A1003 Valve is a robust, 2-way normally closed zone valve designed for hydronic heating systems requiring reliable flow control. Featuring a 1/2 inch flare connection, this 24Vac motorized valve utilizes a high-torque spring return mechanism to ensure positive closure. The V8043A1003 is engineered with a forged brass body, a stainless steel stem, and a brass seat to provide maximum corrosion resistance and longevity in high-demand residential or commercial applications. With a 3.5 Cv flow coefficient and a 20 PSI close-off pressure rating, this motor-actuated valve handles standard circulator pump head pressures without bypass leakage. The unit includes 18-inch lead wires for simplified field wiring and a manual opener lever to facilitate system filling and air purging during initial commissioning. This low-voltage zone control valve is a standard replacement for maintaining hydronic equilibrium and precise temperature regulation in multi-zone boiler configurations.
Key Technical Benefits
- Fail-Safe Closure: Mechanical spring return ensures the valve closes immediately upon power loss to prevent overheating or ghost flows.
- Durable Construction: The forged brass body and stainless steel actuator stem minimize mineral buildup and seat wear.
- Manual Override: Integrated manual opener allows technicians to lock the valve open for system drainage or troubleshooting without 24V power.
- Standard Compatibility: Designed for seamless integration with standard 24Vac thermostats and zone control panels.
- Optimized Flow: A 3.5 Cv rating ensures minimal pressure drop across the valve, maintaining system efficiency.
Common Installation Questions
Will this valve work in a high-head pressure system?
The V8043A1003 is rated for a 20 PSI maximum close-off pressure. If your circulator pump generates head pressure exceeding this value, the valve may experience "lift-off" or leakage when closed.
Does this unit come with the end switch?
No, the V8043A model is the standard 2-wire configuration without an integrated end switch for boiler firing. For applications requiring an end switch, the V8043G series is typically necessary.
Can the actuator head be replaced without draining the system?
Yes, the Resideo zone valve features a twist-lock or screw-on power head design, allowing for electrical component replacement without breaking the 1/2 inch flare plumbing connections.
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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Product Information
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Description
The Resideo V8043A1003 Valve is a robust, 2-way normally closed zone valve designed for hydronic heating systems requiring reliable flow control. Featuring a 1/2 inch flare connection, this 24Vac motorized valve utilizes a high-torque spring return mechanism to ensure positive closure. The V8043A1003 is engineered with a forged brass body, a stainless steel stem, and a brass seat to provide maximum corrosion resistance and longevity in high-demand residential or commercial applications. With a 3.5 Cv flow coefficient and a 20 PSI close-off pressure rating, this motor-actuated valve handles standard circulator pump head pressures without bypass leakage. The unit includes 18-inch lead wires for simplified field wiring and a manual opener lever to facilitate system filling and air purging during initial commissioning. This low-voltage zone control valve is a standard replacement for maintaining hydronic equilibrium and precise temperature regulation in multi-zone boiler configurations.
Key Technical Benefits
- Fail-Safe Closure: Mechanical spring return ensures the valve closes immediately upon power loss to prevent overheating or ghost flows.
- Durable Construction: The forged brass body and stainless steel actuator stem minimize mineral buildup and seat wear.
- Manual Override: Integrated manual opener allows technicians to lock the valve open for system drainage or troubleshooting without 24V power.
- Standard Compatibility: Designed for seamless integration with standard 24Vac thermostats and zone control panels.
- Optimized Flow: A 3.5 Cv rating ensures minimal pressure drop across the valve, maintaining system efficiency.
Common Installation Questions
Will this valve work in a high-head pressure system?
The V8043A1003 is rated for a 20 PSI maximum close-off pressure. If your circulator pump generates head pressure exceeding this value, the valve may experience "lift-off" or leakage when closed.
Does this unit come with the end switch?
No, the V8043A model is the standard 2-wire configuration without an integrated end switch for boiler firing. For applications requiring an end switch, the V8043G series is typically necessary.
Can the actuator head be replaced without draining the system?
Yes, the Resideo zone valve features a twist-lock or screw-on power head design, allowing for electrical component replacement without breaking the 1/2 inch flare plumbing connections.
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.
