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

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

The V8043E1020 from Honeywell is a 1” 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 infloor 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
  • Compact construction for easy installation
  • Approvals of Underwriters Laboratories Inc (UL Component Listed: File MH11826 Vol. 1)
  • Actuator motor may be replaced without removing the valve body or draining the system
  • May be installed without disassembling the valve
  • Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system

Technical Specifications:

  • Connection Type: Sweat
  • Pipe Size (inch): 1"
  • Pipe Size (DN): DN25
  • 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. 200°F
Min Temp. 50°F
Position: Normally Closed
Size1 1"
Temperature Range (F): 50°-200°F
Voltage 24v
Width 3-11/16"
Wiring: 18" Leads

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  • Views: 8406
  • 1” Sweat Zone Valve w/ End Switch, 18” leads QR Code
  • Model: V8043E1020
  • MPN: V8043E1020
  • Availability: 24
  • $ 122.47


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