The EDV is a twin seat valve with an intermediate cone of EPDM rubber that closes flow to both gates at the end position and directs flow as required. This valve can be used with any of the Macon electric or nonelectric thermostats.
Three way valves are designed for mixing or diverting flows in various water based heat or cooling transmission systems, such as radiator loops, floor heating, heat exchangers, solar heat collectors, water heaters, etc.