1/2” Sweat Zone Valve w/ End Switch, 18” leads

1/2” Sweat Zone Valve w/ End Switch, 18” leads

The V8043E1004 from Honeywell is a 1/2” Sweat Zone Valve w/ End Switch, 18” Leads. It consists of a motorized actuator and valve assembly for controlling the flow of hot water to a heat exchanger such as a radiator, convector, finned baseboard radiator, or in floor radiant coil for space temperature control. The V8043 5000 series valves provide two-position, straight through control of supply water at up to 300 psi operating pressure.


  • Hydronic Control.
  • Use this valve in closed loop hydronic systems that do not contain dissolved oxygen in system water, such as fresh water from frequent source of makeup water. Valve designed for cycling (not constantly powered on) applications


  • Manual opener (on all models, except straight-through, normally open valves) for valve operation on power failure
  • valve returns to automatic position when power is restored
  • May be installed without disassembling the valve
  • Compact construction for easy installation
  • Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system
  • Actuator motor may be replaced without removing the valve body or draining the system
  • Approvals of Underwriters Laboratories Inc (UL Component Listed: File MH11826 Vol. 1)

Technical Specifications:

  • Connection Type: Sweat
  • Pipe Size (inch): 1/2"
  • Pipe Size (DN): DN15
  • Body Pattern: Two-way, Straight-through
  • Capacity (Cv): 3.5 Cv
  • Capacity (Kv): 3 Kv
  • De-energized Position: Normally Closed
  • Maximum Close-off Pressure (psi): 20 psi
  • Fluid Temperature Range: 50 F to 200 F
  • Electrical Connections: 18" leads
  • Power Consumption: 7.7 VA
  • Nominal Timing: 15 sec
  • Valve Action: Spring return to close
  • Maximum Ambient Temperature: 125 F
  • Dimensions: 4" high x 3-1/2" wide x 2-3/8" deep
  • Type: 2 position
  • Auxiliary End Switch: SPST
  • End Switch Rating: 50 VA pilot duty @ 24 V
  • Static Pressure (psi): 125 psi
  • Materials (Body): Brass
  • Materials (Stem): Stainless Steel
  • Materials (Ball Plug): Buna-N (NBR) Rubber Ball
  • Materials (Packing O-rings): EPDM O-rings
  • Voltage: 24V
  • Manual Opener: Yes
  • Tradeline Value: Tradeline 
Product Specs
Amperage: 0.3
Application Zoning
Body Pattern: 2-Way
Connection Type Sweat
Depth (Inches): 2-3/8"
End Switch: Yes
Flow Capacity (Cv): 3.5
Height: 4"
Hertz: 59
Material1 Brass
Max Ambient Temp (°F): 125°F
Max Close-Off PSI: 20 psi
Max Pressure (PSI): 300
Max Temp (F): 200°F
Min Temp (F): 50°F
Position: Normally Closed
Size1 1/2"
Temperature Range (F): 50°-200°F
Voltage 24v
Width (Inches): 3-1/2"
Wiring: 18" Leads

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  • 1/2” Sweat Zone Valve w/ End Switch, 18” leads QR Code
  • Model: V8043E1004
  • MPN: V8043E1004
  • Availability: 35
  • $ 99.00


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Tags: Zone Valves, Valves, Heating Valves, Plumbing Supply, Heating Supply, Residential Plumbing