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4www.zurn.com Aqua-Gard
®
Thermostatic Mixing Valves
Adjusting
Spindle
Piston
Flow
Cartridge
Thermal
Motor
Return
Spring
H C
Whenmixedwateristoohot,owcartridgemoves
down,allowingmorecoldwatertoenter
Whenmixedwateristoocold,owcartridgemoves
up,allowingmorehotwatertoenter
Adjusting
Spindle
Piston
Flow
Cartridge
Thermal
Motor
Return
Spring
H C
How a TMV Works
1. Adjustingspindleallowsusertopresetdesiredoutlettemperature
2. HotandColdwaterentermixingchamberofvalve
3. ThermalMotorsenseschangeinoutlettemperature
4. Pistonextendsorretractsinresponsetotemperaturechange
5. FlowCartridgemovesinoppositedirectionofactuatortoadjusttheincomingamountofhotandcoldwater
6. Presettemperatureisachievedandmaintained
Aqua-Gard
®
TMV Solutions