Key Features˙ APPLICATION : The zone valves are used in heating, ventilating and air conditioning plants to control the flow of hot or chilled water. ˙ DESIGN FEATURES : ---The valves are supplied complete with actuator that can easily be installed. ---The housing and the cover are made of metal. ---A flap made of special rubber is used as the element to provide absolutely tight shut-off. Two O-rings are used to seal the spindle. ---The motor opens the valve electrically and closes it by means of springs. ---Faulty actuators can be replaced without removing the valve from the pipe work. ---Auto/manual lever which allows manual operation at power failure. ˙ ORDERING INFORMATION : When ordering, please give quantity, designation and type code. ---Example: 1pc, 3/4” (DN20) two-way zone valve, 300PSI (PN21) , EZV20.223 ---The accessories are to be ordered separately if required. They are also packed separately.
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