High Head Zone Valves

PURPOSE

Designed for high head capacity applications.  Save energy — cut fuel costs! Taco Zone Valves, each with its own thermostat, permit accurate temperature control of individual rooms or groups of rooms. Used primarily in high-rise residential and commercial buildings due to high pump head requirements.

FEATURES

  • Dependable-Quiet Operation — Taco Zone Valves offer rugged dependability and absolutely silent operation. 
  • Heavy Duty Construction.

BUILT TO LAST

  • Leak Proof.  Beryllium copper metal bellows separate system water from the atmosphere for positive and leak proof operation. 
  • Patented Construction.  Exclusive heat motor functions silently. Energy saver — heat motor is not constantly energized while the valve is open. 
  • Maintenance Free.  Heavy bronze body with sweat connections. Globe valve construction with E.P. seat ensures tight shut-off for trouble free service.  
  • Easy-To-Install.  Only 3 low voltage connections.  Power head does not have to be removed to install. 
  • Factory Tested.  Every Taco Zone Valve is operated before shipment.

High Head Zone Valve Dimensions & Specifications
HHeadDim.jpg (29933 bytes)
  Dimensions  
Prod. No. Size Conn's. Normal Flow Range GPM Press. Drop Thru- Valve Ft. of Pipe Equiv. Pump Head Ft. of Water Max. Work Press. PSI Oper. Temp. Range F. Amp. Rating Volts Frequency A B C D Appr. Ship Wgt. Lbs
555 1/2 1-4.5 10 150 125 40-240 0.9 24V-60Hz 3-1/16 5-3/8 1-9/16 2 2-1/8
556 3/4 4.5-6 20 3-3/8 5-3/8 1-9/16 2 2-1/8
557 1 6-10 60 3-5/8 5-5/8 1-9/16 2 2-1/8

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