Specifications

Motorized Zone Valves
70-6910 235
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V8043 Low Voltage Normally Open Zone Valves
On-off and two-way low voltage valves consist of an actuator and
valve assembly for controlling the flow of hot water.
• 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.
• No Manual opener
Dimensions Diagram: See page 230
Application: Hydronic Control
Type: 2 position
Body Pattern: Two-way, Straight-through
Valve Action: Spring return to open
Voltage: 24 Vac
Power Consumption: 7.7 VA
Nominal Timing (sec, min): 15 sec
De-energized Position: Normally Open
Electrical Connections: 18 in. leads (457 mm leads)
Static Pressure: 125 psi (862 kPa)
Fluid Temperature Range: 40 F to 200 F (5 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 Component Listed: File MH11826
Vol. 1
Replacement Parts:
802360JA 24V, 50/60 Hz Replacement motor for V8043, V8044 Zone
Valves
802360UA 24V, 50/60 Hz Replacement motor for steam and heating
Zone Valves
Product Number
Pipe Size Capacity
Connection
Type
Maximum Close-off
Pressure
Frequency
Manual
Opener(inch) DN (Cv) (Kv) (psi) (kPa)
V8043B1019 1/2 in. DN15 3.5 Cv 3 Kv Sweat 20 psi 138 kPa 60 Hz No
V8043B1027 3/4 in. DN20 3.5 Cv 3 Kv Sweat 20 psi 138 kPa 60 Hz No
V8043B1076 3/4 in. DN20 3.5 Cv 3 Kv NPT 20 psi 138 kPa 50 Hz; 60 Hz No