Resideo V8043F1051/U is a 24 VAC zone valve assembly for hydronic control that combines an actuator and valve body to regulate hot water flow. The unit has a brass body, Buna-N rubber valve ball, and stainless steel stem; it is normally closed with spring-return action and a 3.5 Cv capacity. The valve includes a manual opener and end-switch enclosure and is designed for installation without disassembly.
24 VAC actuator and valve assembly with 1 in sweat connection and 3.5 Cv flow coefficient
Normally closed, spring-return action with manual opener; returns to automatic position when power is restored
Brass body with Buna-N valve ball and stainless steel stem; UL recognized, operates at 5 to 95% non-condensing RH
Product Highlights
1 in sweat hydronic zone valve, 24 VAC, 3.5 Cv, normally closed spring return, manual opener, UL recognized
Product Information
Standard Information
Brand: RESIDEO
Manufacturer Part Number: V8043F1051/U
Technical Specifications
Brand
Resideo
Manufacturer Part Number (MPN)
V8043F1051/U
Product Type
Zone valve (actuator and valve assembly)
Connection Type
Sweat
Size
1 in
Nominal Supply Voltage
24 VAC
Frequency
50 Hz; 60 Hz
Power Consumption
7.7 VA
Current Draw
0.32 A
Actuation / Control Signal
Two position
Actuator Opening Time
15 seconds
Valve Action
Spring return to close (normally closed)
De-energized Position
Valve closed (Normally closed)
Flow Coefficient (Cv)
3.5 Cv
Maximum Differential Pressure (Close-off)
20 psi (138 kPa)
Static Pressure Rating
125 psi (862 kPa)
Media Temperature Range
50 to 200 °F (10 to 93 °C)
Ambient Operating Temperature (Max)
125 °F (52 °C)
Operating Relative Humidity Range
5% to 95% non-condensing
Body Material
Brass
Seat Material
Buna-N (NBR)
Stem Material
Stainless steel
Ball / Plug Material
Buna-N (NBR) rubber
Packing Material
EPDM rubber
Includes
End switch enclosure; Manual opener
Electrical Connections
18 in (457 mm) leads; screw terminal on some variants
Approvals and Standards
UL Recognized: File MH11826
Dimensions
2.38 in L x 3.69 in W x 4 in H
Weight
Approximately 1 lb
Application
Hydronic control / HVAC zone control
Comments
Designed for closed-loop hydronic systems and cycling applications; motor/powerhead serviceable without draining the system