How Does an Amot Thermostic Control Valve Work?

The heart and soul of the AMOT thermostatic control valve can be found in the temperature element sitting inside the valve body. Located at the base of the temperature element is special wax material that expands and contracts in response to temperature changes. This special material remains in a semi-solid state and is very sensitive to temperature changes. It is this expansion and contraction that provides the motive force necessary to operate the valve. 

When the thermostatic material expands, due to an increase in temperature, it pushes against a rubber plug that in turn forces the piston through a reduced piston guide. This action multiplies the movement of the piston to create a substantial actuation force. 

The temperature element is attached to a sliding valve that will direct water (or lube oil) out the bypass port or through the outlet port depending upon the temperature of the fluid. 
The AMOT elements also include a return spring that reseats the element in the valve.

AMOT thermostatic valves are not affected by changes in pressure or by pressure surges.

The Amot Thermostatic Element

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