The working principle of capillary thermostat
The capillary thermostat uses the principle of thermal expansion and contraction of the temperature-sensitive fluid and the incompressibility of the liquid to realize automatic adjustment. When the temperature of the controlled object changes, the substance (usually liquid) in the temperature-sensing part of the thermostat will produce corresponding thermal expansion and contraction (volume change), and the bellows connected with the temperature-sensing part will expand or shrink. Based on the principle of lever, the switch is driven on and off, so that the controlled temperature can reach and maintain within the set temperature range. The capillary thermostat has the characteristics of accurate temperature control, stability and reliability, small temperature difference between start and stop, large temperature control adjustment range, and large overload current. Mainly used for temperature control occasions such as household appliance industry, electric heating equipment, refrigeration industry and so on.
