Along with bi-metal solutions, Leonard’s valve models offer “integrated control” for water tempering design and installation needs. Leonard's latest line of valves utilize advanced paraffin-based thermostatic control technology that offers efficient response time to temperature and pressure fluctuations, ensuring optimal temperature control and performance for domestic hot water systems. These valves provide accurately mixed water from extremely low flows of 1.0 GPM (3.8 lpm), to high flow requirements. These valves are all listed to the stringent performance requirements of their pertinent ASSE Standard.  
 
Paraffin-based valves are installed to control water temperature for building hot water systems - hotels, hospitals, commercial/institutional installations.