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. 121 I (DA)
2. 323 II Hatchback (BD)
3. 323 MK IV Hatchback (BD)
4. 323 Mk II Hatchback (BD)
5. FAMILIA II Hatchback (BD)
6. FAMILIA V Hatchback (BD)
7. 323 II (BD)
8. 323 II Saloon (BD)
9. GLC II (BD)
10. 323 Mk II (BD)
11. FAMILIA II (BD)
12. FAMILIA V (BD)
13. 323 III Hatchback (BF)
14. ASTINA / ETUDE III Hatchback (BF)
15. FAMILIA MK V Hatchback (BF)
16. FAMILIA III Hatchback (BF)
17. ETUDE III Hatchback (BF)
18. 323 III (BF)
19. 323 III Saloon (BF)
20. FAMILIA MK V (BF)
21. See more in applications

The principle of the thermostat work

The classic KAVO PARTS 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.