Float closing pressure of the cold water inlet in the natural circulation boiler with vacuum tubes, insulated with 25 mm of polyurethane.
It is used in thermal solar panels with natural circulation with no tank
under pressure. The solar panel is installed to a
height of at least 4-6m to an adequate water pressure,
if that is not possible, it is recommended to install panels
pressurized with vacuum tubes or panels with pressurized
tube heat pipe or install a mixing valve set
to about 45 °, with a pump that is activated when it is opened
the hot water.
PLEASE ALWAYS ASK AVAILABILITY 'AND DELIVERY BEFORE MAKING PURCHASES !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!