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


Brand: Honeywell

Mfr Part#: V8043E1020

UPC#: 085267990098

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$76.95 / each
x4 $292.60 / box & Free Shipping
(4 x $73.15 / each)
  • Description
  • Literature
  • Reviews (2)
  • FAQs

Honeywell V8043E1020 is a 1" Sweat Connection Motorized Zone Valve, two-way on-off low voltage valve.
Honeywell Zone Valves V8043 consist 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 
1" Sweat Zone Valve w/ End Switch, 18" leads has an average 5.0 out of 5 rating based on 2 user reviews.
Very good product
By Jacob (from Vienna, VA) on 12/17/2015
like all other product I bought, this valve is great working good as other valves I bought.
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Works great! Plain and Simple!
By Mr. Home Improvement (For Now) (from Eureka, SD) on 4/22/2011
Installed in new underfloor hydronic heating system. Works like a charm. Made very well.
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