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Resideo V8043F1051 1" Sweat Normally Closed Zone Valve 3.5 Cv W/End Switch 24V

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Special Price $164.97 Regular Price $189.71
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SKU
V8043F1051
The Resideo V8043F1051 Zone Valve is a 1” sweat valve designed for accurate control of temperature in heating and cooling systems. This valve operates with a 24V control signal and has a Buna-N (NBR) rubber ball/plug for sealing. It has a brass body and a two-way straight-through construction. The flow coefficient is 3.5 Cv, which opens fluid flow, and with a pressure rating of 125 PSI, the pump delivers durability in all sorts of conditions. It has a manual changeover and an actuator opening time of 15 seconds, which makes it possible to have accurate control of heating and cooling zones.
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HVAC Controls & Electrical, Valves
Manufacturer:
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Specifications

  • Type: Zone Valve
  • Power Loss Action: Valve Closed
  • Ball/Plug Material: Buna-N (NBR) Rubber
  • Approvals and Standards: UL Recognized- File MH11826
  • Color: Bronze, Black
  • Changeover: Manual
  • Dimensions: 2.38" x 3.69" x 4"
  • Max Temperature: 125°F
  • Connection Type: Sweat
  • Flow Coefficient: 3.5 Cv
  • Actuator Control Signal: Two position
  • Actuator Opening Time: 15 Seconds
  • Pressure Rating: 125 PSI
  • Valve Body Material: Brass
  • Valve Body Pattern: Two-way, Straight Through
  • Valve Seat Material: Brass

Product Overview:
Regulates water circulation through individual hydronic heating and cooling zones using a motorized valve mechanism. The Resideo V8043F1051 Zone Valve With End Switch N/C 1" Sweat 24V 3.5 Cv is an OEM hydronic control component featuring a normally closed configuration, 1-inch sweat connection, 24V operation, and a 3.5 Cv flow coefficient. Its end switch supports electrical coordination with the associated zone-control sequence.

Hydronic Passage Control:
Within a hydronic valve, the internal flow passage opens or closes according to the valve's operating state. Opening the passage permits water to move through the circuit, while closing it restricts circulation through that section. This controlled movement allows individual hydronic circuits to receive water as required by the system's operating sequence.

Hydronic Zone Sequencing:
During a heating or cooling cycle, the valve works between the system's water circuit and the designated zone to regulate circulation. Valve movement determines when water can pass through the zone circuit, while the associated switching mechanism provides an electrical indication linked to valve operation. This interaction allows water circulation and related control actions to occur as part of the same zone sequence.

Replacement Guidelines:
A zone valve can be considered for replacement when its flow control becomes inconsistent, or its operating action no longer provides dependable circulation within the hydronic circuit. The Resideo V8043F1051 Zone Valve With End Switch N/C 1" Sweat 24V 3.5Cv is suited to applications calling for the same configuration and characteristics specified in the product title.

Common Signs of Wear:

  • Inconsistent water circulation through the zone
  • Irregular valve movement during operation
  • Uneven hydronic flow through the controlled circuit
  • Delayed response within the zone sequence
  • Inconsistent coordination with associated controls

Equipment Compatibility:
Resideo V8043F1051 Zone Valve With End Switch N/C 1" Sweat 24V 3.5Cv is intended for hydronic HVAC zoning applications that require controlled water circulation through an individual zone circuit. Its specified configuration supports applications using this type of zone-control arrangement.

Technical Specifications:
Brand: Resideo
SKU / Part Number: V8043F1051
Component Type: Zone Valve
Connection: 1" Sweat
Configuration: Normally Closed
Flow Coefficient: 3.5 Cv
End Switch: Yes
Voltage: 24V

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Product Questions (5)
Customer Questions
What is the Resideo V8043F1051 zone valve used for?

It controls water flow through a designated zone in an applicable hydronic HVAC system.

What does normally closed operation mean?

The valve remains closed in its resting state and opens when actuated to permit water flow through the circuit.

What does the end switch do on the V8043F1051?

The end switch provides an electrical signal associated with valve operation, helping coordinate the valve with other HVAC controls.

What signs may indicate a faulty zone valve?

Uneven heating or cooling, restricted flow, leakage, or failure to respond to control signals may indicate a valve or actuator problem.

How should the V8043F1051 zone valve be maintained?

Inspect for leakage, visible damage, and restricted movement. Have a qualified HVAC technician check actuator operation, end-switch function, and electrical connections according to manufacturer guidance.