Thermostat is a device for maintaining a static (constant) temperature, as its name implies. There are thermostats of different designs in many devices and mechanisms, from water heaters to refrigerators. There is also a thermostat in a car's internal combustion engine (liquid-cooled, of course). In a car, the thermostat regulates the temperature of the coolant (antifreeze): it accelerates the warm-up of a cold engine and provides heat removal from the hot one. Therefore, the engine works more efficiently and more comfortably for the driver, especially in winter - without a thermostat, the stove would usually blew cold air.

1. SONATA V (NF)
2. SONATA V Saloon (NF)
3. SONICA V (NF)
4. EMBERA V (NF)
5. NF V (NF)
6. SORENTO I (JC)
7. LANTRA II (J-2)
8. LANTRA II Saloon (J-2)
9. ELANTRA II (J-2)
10. LANTRA Mk II (J-2)
11. AVANTE II (J-2)
12. ACCENT I (X-3)
13. EXCEL I (X-3)
14. PONY I (X-3)
15. VERNA I (X-3)
16. ACCENT Saloon (X-3)
17. EXCEL Saloon (X-3)
18. PONY Saloon (X-3)
19. VERNA Saloon (X-3)
20. BIMANTARA CAKRA Saloon (X-3)
21. See more in applications

The principle of the thermostat work

The classic HOFFER brand Thermostat, coolant is a movable valve that moves due to a change in the external environment - heating or cooling of antifreeze. The thermostat is made of a thermoelement filled with a substance resembling wax in structure - ceresin, with the addition of copper powder, graphite or aluminum for better thermal conductivity. At a certain temperature of the antifreeze, ceresin expands, opening the thermostat valve. When the motor cools down, ceresin contracts and the thermostat closes again.