Nordyne 624661R Outdoor Thermistor
For veteran contractors managing closed-loop hydronic systems, the Honeywell V8043E1012 remains a standard for reliable 2-way zone valve performance. This 3/4-inch sweat connection zone valve features a normally closed configuration and a built-in SPST auxiliary end switch, allowing for seamless integration with boiler controllers and circulator pumps. Engineered for high-efficiency flow control, it offers a 3.5 Cv capacity and a 20 psi close-off pressure rating, making it ideal for baseboard radiation and convector applications where quiet operation is non-negotiable.
The V8043E1012 is built with a brass body and a stainless steel stem for long-term durability in systems with fluid temperatures ranging from 50°F to 200°F. Field service is streamlined by the Honeywell zone valve powerhead design, which allows for the replacement of the synchronous motor or the entire actuator assembly without breaking line connections or draining the system. With 18-inch lead wires and a manual opener lever for emergency operation during power loss, this 24V powerhouse ensures consistent zone isolation and precise thermal management in any professional hydronic installation.
Key Benefits:- High-Flow Efficiency: Rated at 3.5 Cv to minimize pressure drop across the 3/4-inch sweat connections.
- Serviceable Design: Complete powerhead and motor can be replaced without plumbing disassembly.
- Integrated End Switch: Includes a 50 VA pilot duty auxiliary switch to signal boilers or pumps.
- Emergency Manual Override: Manual lever allows for valve opening during power failures with automatic return.
- Rugged Internals: Features EPDM O-rings and a Buna-N rubber ball plug for reliable sealing in closed-loop systems.
- Can this valve be used in open-loop or potable water systems? No, this model is specifically designed for closed-loop hydronic systems. Dissolved oxygen in open systems will cause the rubber plug to deteriorate prematurely.
- Is the end switch required for the valve to function? The end switch is used to verify the valve is fully open before the circulator starts; while the motor will still actuate without it, it is recommended for proper system sequencing.
- How do I handle a seized valve stem? If the motor is struggling to turn, the internal ball plug may be sticking. Because the head is removable, you can manually rotate the stem to check for freedom of movement before replacing the actuator.
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: $11.56
-65%$11.56
$4.05Product Information
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Description
For veteran contractors managing closed-loop hydronic systems, the Honeywell V8043E1012 remains a standard for reliable 2-way zone valve performance. This 3/4-inch sweat connection zone valve features a normally closed configuration and a built-in SPST auxiliary end switch, allowing for seamless integration with boiler controllers and circulator pumps. Engineered for high-efficiency flow control, it offers a 3.5 Cv capacity and a 20 psi close-off pressure rating, making it ideal for baseboard radiation and convector applications where quiet operation is non-negotiable.
The V8043E1012 is built with a brass body and a stainless steel stem for long-term durability in systems with fluid temperatures ranging from 50°F to 200°F. Field service is streamlined by the Honeywell zone valve powerhead design, which allows for the replacement of the synchronous motor or the entire actuator assembly without breaking line connections or draining the system. With 18-inch lead wires and a manual opener lever for emergency operation during power loss, this 24V powerhouse ensures consistent zone isolation and precise thermal management in any professional hydronic installation.
Key Benefits:- High-Flow Efficiency: Rated at 3.5 Cv to minimize pressure drop across the 3/4-inch sweat connections.
- Serviceable Design: Complete powerhead and motor can be replaced without plumbing disassembly.
- Integrated End Switch: Includes a 50 VA pilot duty auxiliary switch to signal boilers or pumps.
- Emergency Manual Override: Manual lever allows for valve opening during power failures with automatic return.
- Rugged Internals: Features EPDM O-rings and a Buna-N rubber ball plug for reliable sealing in closed-loop systems.
- Can this valve be used in open-loop or potable water systems? No, this model is specifically designed for closed-loop hydronic systems. Dissolved oxygen in open systems will cause the rubber plug to deteriorate prematurely.
- Is the end switch required for the valve to function? The end switch is used to verify the valve is fully open before the circulator starts; while the motor will still actuate without it, it is recommended for proper system sequencing.
- How do I handle a seized valve stem? If the motor is struggling to turn, the internal ball plug may be sticking. Because the head is removable, you can manually rotate the stem to check for freedom of movement before replacing the actuator.
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.
