Control valve assembly for a fluid heating system

Abstract

A control valve assembly may include a housing, an inlet, an outlet, and a plurality of thermostatic control valves biased toward a closed position and arranged within the housing between the inlet and the outlet. The thermostatic control valves may each be associated with separate respective flow paths between the inlet and the outlet and have different operating temperatures. The valves may be configured to open at their respective operating temperatures and remain open unless the fluid falls below their respective operating temperature such that when multiple thermostatic control valves are open the amount of fluid flowing through the control valve is equal to the addition of the amount of fluid flowing through each valve. The operating temperatures and the flow rates of the thermostatic control valves may be selected to limit the passage of pathogens through the control valve assembly. A degassing valve may also be provided.

Dependencies are inferred from the claim text.