Motorized Zone Valves
NPT Connection
Sweat Connection
with terminal block
Flare Connection
Sweat Connection
V8043 Low Voltage Normally Closed Zone Valves
Two-way on-off low voltage valves consist of an actuator and valve
assembly for controlling the flow of hot water.
• 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.
• All models 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.
Application: Hydronic Control
Typ e: Two position
Body Pattern: Two-way, Straight-through
Valve Action: Spring return to close
Volt ag e: 24 Vac
Frequency: 50 Hz; 60 Hz
Power Consumption: 7.7 VA
De-energized Position: Normally Closed
Fluid Temperature Range: 50 F to 200 F (10 C to 93 C)
Maximum Ambient Temperature: 125 F (52 C)
Comments: 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.
Materials
(Body): Brass
(Stem): Stainless Steel
(Seat): Brass
(Packing O-Ring): EPDM rubber
(Ball Plug): Buna-N (NBR) Rubber Ball
Approvals
Underwriters Laboratories, Inc: UL Listed: File MH11826
Replacement Parts:
802360JA-24V, 50/60 Hz Replacement motor for V8043, V8044 Zone
Val ves
802360UA-24V, 50/60 Hz Replacement motor for steam and heating
Zone Valves
Maximum Close-
Capacity Pipe Size
Product Number
V8043A1003/U 3.5 Cv 3 Kv 1/2 in. DN15 Flare — 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
V8043A1011/U 3.5 Cv 3 Kv 1/2 in. DN15 Sweat — 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
V8043A1029/U 3.5 Cv 3 Kv 3/4 in. DN20 Sweat — 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
V8043A1037/U 3.5 Cv 3 Kv 1 in. DN25 Sweat — 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
* V8043A1193/U 3.5 Cv 3 Kv 1/2 in. DN15 Inverted Flare — 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
V8043A1227/U 3.5 Cv 3 Kv 1/2 in. DN15 NPT — 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
* V8043E1004/U 3.5 Cv 3 Kv 1/2 in. DN15 Sweat N.O. SPST 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
* V8043E1012/U 3.5 Cv 3 Kv 3/4 in. DN20 Sweat N.O. SPST 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
* V8043E1020/U 3.5 Cv 3 Kv 1 in. DN25 Sweat N.O. SPST 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
V8043E1061/U 8 Cv 6.9 Kv 3/4 in. DN20 Sweat N.O. SPST 8 psi 55 kPa 0.32A Yes 18 in. (457 mm) leads
V8043E1079/U 8 Cv 6.9 Kv 1 in. DN25 Sweat N.O. SPST 8 psi 55 kPa 0.32A Yes 18 in. (457 mm) leads
* V8043E1129/U 3.5 Cv 3 Kv 1/2 in. DN15 Inverted Flare N.O. SPST 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
V8043E1137/U 10 Cv 8.6 Kv 1 in. DN25 NPT N.O. SPST 6.5 psi 45 kPa 0.32A Yes 18 in. (457 mm) leads
V8043E1145/U 3.5 Cv 3 Kv 3/4 in. DN20 NPT N.O. SPST 20 psi 138 kPa 0.32A Yes 18 in. (457 mm) leads
* V8043F1028/U 3.5 Cv 3 Kv 1/2 in. DN15 Sweat N.O. SPST 20 psi 138 kPa 0.32A Yes screw terminal block
* V8043F1036/U 3.5 Cv 3 Kv 3/4 in. DN20 Sweat N.O. SPST 20 psi 138 kPa 0.32A Yes screw terminal block
* V8043F1051/U 3.5 Cv 3 Kv 1 in. DN25 Sweat N.O. SPST 20 psi 138 kPa 0.32A Yes screw terminal block
V8043F1093/U 8 Cv 6.9 Kv 3/4 in. DN20 Sweat N.O. SPST 8 psi 55 kPa 0.32A Yes screw terminal block
V8043F1101/U 8 Cv 6.9 Kv 1 in. DN25 Sweat N.O. SPST 8 psi 55 kPa 0.32A Yes screw terminal block
* TRADELINE models • SUPER TRADELINE models
Connection
Type
Auxiliary
End Switch
off Pressure
Current
Draw (A)
Manual
Opener
Electrical
Connections(Cv) (Kv) inch DN (psi) (kPa)
206 customer.honeywell.com 70-6910
Motorized Zone Valves
NPT ConnectionSweat Connection
V8043 Low Voltage Normally Open Valves For Steam
On-off and two way low voltage valves consist of an actuator and
valve assembly for controlling the flow of low pressure steam.
• All models 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.
• Suitable for use 15 psi low pressure steam application.
Application: Steam (low pressure) Control
Typ e: Two position
Body Pattern: Two-way, Straight-through
Valve Action: Spring return to open
Volt ag e: 24 Vac
Frequency: 50 Hz; 60 Hz
Power Consumption: 7.7 VA
Nominal Timing (sec, min): De-energized Position: Normally Open
Electrical Connections: 18 in. leads (457 mm leads)
Fluid Temperature Range: 50 F to 240 F (10 C to 116 C)
Maximum Ambient Temperature: 125 F (52 C)
Capacity Pipe Size
Product Number
V8043J1003/U 3.5 Cv 3 Kv 1/2 in. DN15 Sweat 20 psi 138 kPa Normally Open 0.42A No
V8043J1029/U 3.5 Cv 3 Kv 1/2 in. DN15 NPT 20 psi 138 kPa Normally Open 0.42A No
V8043J1037/U 3.5 Cv 3 Kv 3/4 in. DN20 NPT 20 psi 138 kPa Normally Open 0.42A No
Connection
Type
Materials
(Body): Brass
(Stem): Stainless Steel
(Seat): Brass
(Packing O-Ring): EPDM rubber
(Ball Plug): EPDM Rubber Ball
Comments: For low pressure (15 psi) steam application
Approvals
Underwriters Laboratories, Inc: UL Listed: File MH11826
Replacement Parts:
802360UA-24V, 50/60 Hz Replacement motor for steam and heating
Zone Valves
Maximum Closeoff Pressure
De-energized
Position
Current Draw
(A)
Manual
Opener(Cv) (Kv) inch DN (psi) (kPa)
Controls
Hydronic
70-6910 207