What type of temperature sensor use the “K” thermostatic head?
Heimeier invented thermostatic head with liquid sensor. Today, we can find thermostatic heads with solid sensor (paraffin) or with gas sensor. In case of solid sensor, the main disadvantage is the long time of reaction of this material. So, the thermostatic valve does not make the job for which it was designed: to close and to open quickly in the light of changing the interior temperature. The advantage of gas sensor is the good reaction time, but gas is a compressible fluid, which is a big disadvantage for this type of sensor, thermostatic valve operation can be influenced by pressure from the installation. Liquid sensor combines all the advantages: the liquid is incompressible and because of the type of liquid used, the reaction time is very short.
