HOW IT WORKS
A wax element is designed as a metal cup with an encapsulated wax with a steel pin.
Rising temperature increases the inner pressure of the closed wax-chamber. The inner pressure acts on a steel pin, which acts as a working piston and converts the pressure into mechanical force.
With a mechanical thermostat, the wax reacts to the fluid temperature of the surrounding fluid. With an electrical thermostat, the wax reacts to the temperature of an electrical heat source inside the wax element, as well the fluid temperature. They are available with a standard cap, a standard cap with a platform, or a double cap.