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. ESCORT I (AFH, ATH)
2. ESCORT � (AFH, ATH)
3. ESCORT II (ATH)
4. ESCORT Mk II (ATH)
5. CAPRI II (GECP)
6. CAPRI Mk II (GECP)
7. FIESTA III (GFJ)
8. FIESTA Mk III (GFJ)
9. ESCORT I Turnier (ADH)
10. ESCORT I Break (ADH)
11. ESCORT � Turnier (ADH, AF)
12. CORSA A Hatchback Van (S83)
13. CONSUL (GGFL)
14. MICRA III (K12)
15. MARCH III (K12)
16. MICRA C+C III (K12)
17. NOTE (E11, NE11)
18. See more in applications

The principle of the thermostat work

The classic SASIC 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.