• 2-way on-off low VAC age valves consist of an actuator and valve assembly for controlling the flow of hot water
• Manual opener for valve operation on power failure, valve returns to automatic position when power is restored
• All model 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
• The valve can be mounted in any position on a vertical line
• 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
• 15 sec nominal open timing
• Screw terminal block electric connection
• Spring return to close valve action
• No SPST auxiliary end switch
• 50 VA pilot duty at 24 VAC , 4.4 amp running with 26.4 amp inrush at 120 VAC end switch rating
• Buna-N (NBR) rubber plug
• Brass case, sector gears, stainless steel cover actuator

HONEYWELL B163-4

B163-4

• On-off low VAC age valves consist of an actuator and valve assembly for controlling the flow of hot water
• Manual opener 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
• 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
• 15 sec open time
• 18" lead electric connection
• Spring return to close valve action
• 50 VA pilot duty at 24 VAC , 4.4 amp running with 26.4 amp inrush at 120 VAC end switch rating
• NO SPST auxillary end switch
• Buna-N (NBR) rubber ball plug/ball/disc material
• EPDM rubber packing material
• Mounted in any position on a vertical line

HONEYWELL V8043E1061

V8043E1061

Honeywell V8043E5012

V8043E5012

97627421

97627421

• Heat motor zone valves provide a convenient way to create individual zones or equipment isolation in a hydronic heating system
• Using multiple heat motor zone valves and a single pump, you can start, stop or divert flow through the system to provide individual room or area comfort control and energy savings
• Rugged dependability
• Silent operation
• Twist off head
• Bellows valve construction ensures positive shut-off and leak proof operation
• Patented construction
• Easy-to-install
• Manual open lever
• 100% factory tested
• 24 VAC powered with isolated end switch
• Made in USA
• 3 year head, 5 year body warranty

Taco B163-78

B163-78

557-G3

• Heat motor zone valves provide a convenient way to create individual zones or equipment isolation in a hydronic heating system
• Using multiple heat motor zone valves and a single pump, you can start, stop or divert flow through the system to provide individual room or area comfort control and energy savings
• Rugged dependability
• Silent operation
• Twist off head
• Bellows valve construction ensures positive shut-off and leak proof operation
• Patented construction
• Easy to install
• Manual open lever
• 100% factory tested
• 24 VAC powered with isolated end switch
• Made in USA
• 3 years head, 5 years body warranty

Taco B163-76

B163-76

• Rack and pinion linear design
• Fast acting, 15 sec to open, 5 sec to close
• 2-piece rack design to extend service life
• Low power consumption, 8 valves, 40 VA transformer
• External valve position indicator
• Quiet operation, no water hammer
• Built-in tamper resistant balancing valve for pre-balancing
• High torque, constant speed synchronous motor
• Cooler running, longer life motor
• Operator can be replaced without draining system
• Manual opening feature
• Replaceable valve cartridge
• Large adjustable flow, 1/2" 3/4" Cu 5.8, 1" 7 Cu, 1-1/4" Cu 7
• 4-wire operator with auxiliary switch
• 2-wire without switch, 24" leads
• Compatible with programmable thermostats
• 30 mm collar (valve/actuator interface)
• SPST auxiliary end switch

MZV520RP

MZV520RP

B331

B350

Honeywell VCZZ6100

VCZZ6100

Schneider Electric B163-60

B163-60