Honeywell v8044a1044/u 24V 3/4 Inch Sweat Three-way Diverting Zone Valve Normally Closed

Product Description

The Honeywell V8044A1044/U is a 24-volt, three-way diverting zone valve designed for hydronic heating systems. It controls the flow of hot water through closed-loop piping systems, directing water to the correct zone based on thermostat demand. HVAC technicians and hydronic heating professionals use this valve to manage water flow in residential and light commercial applications where reliable zone control is essential.

This zone valve uses a sweat connection for 3/4 inch copper pipe, making it a direct fit for standard hydronic installations. The valve body, seat, and internal components are built from brass, stainless steel, and Buna-N rubber, giving it durability in continuous wet environments. The spring return actuator ensures the valve returns to its normally closed position at Port A when de-energized, providing a fail-safe default state that protects the system.

The V8044A1044/U opens in approximately 30 seconds after receiving a 24-volt signal, which is standard for zone valve applications in forced hot water systems. It draws 0.32 amps and consumes 7.7 VA of power. The valve is rated for fluid temperatures from 40 degrees Fahrenheit to 200 degrees Fahrenheit and handles a maximum differential close-off pressure of 10 psi. Static pressure rating reaches 125 psi. Flow capacity is rated at 7.0 Cv, supporting adequate water flow in typical residential hydronic loops.

This valve is specifically designed for cycling applications and should not be kept constantly energized. It is approved for use in closed-loop systems that do not contain dissolved oxygen, such as systems that do not draw from a frequent source of makeup water. A manual opener is included, allowing technicians to operate the valve by hand during setup, testing, or troubleshooting without requiring power. The valve carries UL Listed and CSA Certified approvals, meeting North American safety and installation standards. Operating humidity range is 5 to 95 percent relative humidity, non-condensing, with a maximum ambient temperature of 125 degrees Fahrenheit.

• Three-way diverting valve with spring return actuator and normally closed Port A position when de-energized
• Brass body and seat with stainless steel stem and Buna-N rubber ball for durability in closed-loop hydronic systems
• UL Listed and CSA Certified with manual opener included for field testing and commissioning

Product Highlights

The Honeywell V8044A1044/U delivers dependable zone control in 24-volt hydronic heating systems with a robust brass construction, spring return safety operation, and dual agency approvals for residential and commercial installations.

Product Information

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: V8044A1044/U

Technical Specifications

• Application: Hydronic Control
• Valve Type: Zone Valve
• Body Pattern: Three-Way, Diverting
• Valve Action: Spring Return
• Actuation: Two Position
• De-energized Position: Port A Normally Closed
• Connection Type: Sweat
• Pipe Size: 3/4 inches
• Voltage: 24 Vac
• Power Consumption: 7.7 VA
• Current Draw: 0.32 A
• Frequency: 50 Hz / 60 Hz
• Timing (Nominal Open): 30 seconds
• Fluid Temperature Range: 40 F to 200 F (5 C to 93 C)
• Ambient Temperature Range: 125 F Maximum (52 C Maximum)
• Operating Humidity Range: 5 to 95 percent relative humidity, non-condensing
• Maximum Differential Pressure (Close-off): 10 psi (69 kPa)
• Static Pressure Rating: 125 psi (862 kPa)
• Flow Capacity: 7.0 Cv (6 Kv)
• Electrical Leads: 18 inches (457 mm)
• Dimensions: 4 13/16 inches high x 3 1/2 inches wide x 2 3/8 inches deep
• Body Material: Brass
• Seat Material: Brass
• Stem Material: Stainless Steel
• Plug/Ball/Disc Material: Buna-N (NBR) Rubber Ball
• Packing Material: EPDM Rubber
• Manual Opener: Yes
• UL Listing: File MH11826
• CSA Certification: File 1322