Caleffi 3/4" Male Thread x 3/4" Sweat Pump Station Fittings (4 Fittings)

Solar pump stations are used on the primary circuit of solar heating systems to control the temperature of the hot water storage. Teh pump inside the unit is activated by the signal from a differential temperature controller. The unit contains the functional and safety devices for an optimal circuit control, and is available with both flow and return connection or with return connection only. General overview: The solar pump station is a pre-installed and leak tested unit with fittings for transferring heat from the collector to the storage tank. It contains important fittings and safety devices for the operation of the solar thermal system. Ball valves in flow and return in combination with check valves to prevent gravity and thermo circulation. Ports for flushing, filling and emptying the system. Air vent for manual bleeding of the solar thermal system. Flow meter for displaying and setting the flow rate. Thermometer in flow and return for displaying both temperatures. Pressure gauge for displaying the s...