Honeywell Zone Valve, Series: V8043, 1/2 in Nominal, Press, 18 in Lead Connection, 2-Way/2-Position, 120 lb/sq-in Static, 20 lb/sq-in Close Off Differential Pressure, 3 Flow Coefficient (Cv), Stainless Steel Stem, Buna-N Rubber Ball Trim, EPDM Rubber Packing, Buna-N Rubber Disc, Brass Seat, Brass, On-Off Actuator, NC Configuration, 0.32 A, 24 VAC at 50/60 Hz, 7.7 V-A Power, 125 deg F Ambient, 40 - 200 deg F Fluid, 6-13/32 in L x 2-3/8 in W x 4 in H Dimensions

• 2-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 power head 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
• 15 sec nominal open time
• Spring return to close valve actuation
• Manual opener
• Straight-through body configuration

• Instruction/Installation Manual https://assets.unilogcorp.com/267/ITEM/DOC/Honeywell_V8043E1413_U_Manual.pdf