3/4" Sweat Zone Valve

The honeywell v8043f1036 24v 3/4 in. sweat connection low voltage two-way on-off motorized zone valves includes 3.5 cv capacity for controlling the flow of hot water, and a manual opener in case of power failure. features the v8043f1036 includes a 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 with 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.