1/2" Sweat 555 Heat Motor Zone Valve Zoom

1/2" Sweat 555 Heat Motor Zone Valve


Brand: Taco

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Application: Zoning
Size: 1/2"
Connection Type: Sweat
Material: Bronze
Body Pattern: 2-Way
Hertz: 60
Flow Capacity (Cv): 4.2 Cv
Max Flow (GPM): 4.5
Flow Range (GPM): 1-4.5 GPM
Min Flow (GPM): 1
Min Temp (F): 40°F
Temperature Range (F): 40°-240°F
Max Temp (F): 240°F
Max Pressure (PSI): 125 psi
Wiring: 3 Wire Terminal Block
Width (Inches): 3-1/16"
Height (Inches): 5.375
Depth (Inches): 2"
Pump Head Ft of Water: 150 Ft
End Switch: Yes

Description for Taco 555-2

Taco's 550 Series heat motor zone valves are designed for high-head capacity applications such as high-rise residential and commercial buildings. Heavy-duty construction enables this series to operate up to 150 feet of pump head. They are available in 1/2" - 1" sweat connections.

Taco Heat Motor Zone Valves provide a convenient way to create individual zones or equipment isolation in a hydronic heating system. Utilizing one pump along with multiple zone valves, flow can be started, stopped, or diverted through the system to provide individual room or area comfort control and energy savings.


  • Proven Performance: Millions in Use. Taco Zone Valves are the Industry's Top Choice for Consistent Performance
  • Rugged Dependability
  • Silent Operation
  • Twist Off Head
  • Bellows or Globe Valve Construction Ensures Positive Shut-off and Leak Proof Operation
  • Patented Construction
  • Easy to Install
  • Manual Open (Bypass) Lever
  • 24 VAC Powered with Isolated End Switch
  • 100% Factory Tested
  • Made in the USA
  • 3 Year Head, 5 Year Body Warranty

1/2" Sweat 555 Heat Motor Zone Valve

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2 Questions | 2 Answers
Displaying questions 1-2
  • 1/2" Sweat 555 Heat Motor Zone Valve


    My system has no zone valves and the system heats two floors. Can I split and create two zones? Force hot water heating system. Hot water tank has it's own cir. pump.
    Asked on 10/25/2011 by Mr. Ed from Merrimack, NH

    1 answer



      Yes, that can be done.

      Answered on 11/16/2011 by PexSupply Staff from NY
  • 1/2" Sweat 555 Heat Motor Zone Valve


    I am needing just the head of the 555 Taco Zone valve, is this possible?
    Asked on 3/11/2011 by Jon from Perry, IA

    1 answer



      Yes, you need part number 555-050RP.

      Answered on 3/11/2011 by PexSupply Staff from NY
Displaying questions 1-2

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