Resideo v8043f5036/u Zone Valve 0.75 in 24V 300 Psi 3.5 Cv

Product Description

The RESIDEO v8043f5036/u is a two-way, on-off, low-voltage zone valve designed to control hot water flow in hydronic heating systems. The assembly combines an actuator and valve body in a single unit, providing reliable zone isolation without the need for separate components. Rated at 24 volts and 0.32 amps, the valve operates on standard low-voltage hydronic controls. The brass valve body carries a 300 psi pressure rating and a flow coefficient (Cv) of 3.5, making it well-suited for residential and light-commercial hot water distribution circuits. It is installed by licensed plumbers and HVAC technicians performing hydronic system work.

This zone valve is used in forced hot water heating systems where individual zones must be controlled independently. Typical applications include residential baseboard hydronic systems, radiant floor loops, and fan-coil unit supply lines. The valve is rated for water temperatures between 50 and 200 degrees F, covering the full operating range of standard hydronic heating systems. The 3/4-inch nominal size and C end-style configuration fit common residential and light-commercial piping layouts. A 20 psi differential pressure rating keeps the valve within standard zone circuit parameters.

Key Features

• Two-way on-off design controls hot water flow in individual hydronic zones
• 24-volt low-voltage actuator compatible with standard hydronic zone controls and thermostats
• Brass valve body rated to 300 psi for durable, corrosion-resistant service
• 3.5 Cv flow coefficient supports 3/4-inch zone circuits without significant pressure drop
• Screw terminal block electrical connection for straightforward field wiring
• Water temperature range of 50 to 200 degrees F covers standard hydronic operating conditions

Compatibility

Designed as an OEM-style replacement zone valve for residential and light-commercial hydronic heating systems requiring a 3/4-inch, two-way, low-voltage on-off valve in the V8043 series configuration.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician familiar with hydronic systems. Shut off water supply and relieve system pressure before removing or installing the valve. Electrical connections must be made with system power de-energized; follow applicable NEC requirements for low-voltage wiring. Verify correct flow direction and end-style orientation before securing fittings.

Technical Specifications

• Series: V8043
• Type: 2-Way Low Voltage On-Off Zone Valve
• Nominal Size: 0.75 inches
• End Style: C
• Pressure Rating: 300 psi
• Differential Pressure: 20 psi
• Flow Coefficient: 3.5 Cv
• Voltage Rating: 24 volts
• Current Draw: 0.32 amps
• Water Temperature Range: 50 to 200 degrees F
• Electrical Connection: Screw Terminal Block
• Dimensions: 4.375 inches H x 3.5 inches W x 2.375 inches D
• Material: Brass
• Origin: Import

Standard Information

• Brand: RESIDEO
• Manufacturer Part Number: v8043f5036/u