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. FIESTA I (GFBT)
2. FIESTA � (GFBT)
3. FIESTA II (FBD)
4. FIESTA Mk II (FBD)
5. ESCORT I (AFH, ATH)
6. ESCORT � (AFH, ATH)
7. ESCORT II (ATH)
8. ESCORT Mk II (ATH)
9. ESCORT IV (GAF, AWF, ABFT)
10. ESCORT Mk IV (GAF, AWF, ABFT)
11. KADETT B Coupe
12. REKORD C
13. REKORD C Coupe
14. REKORD C Estate
15. REKORD D
16. REKORD D Coupe
17. REKORD D Estate
18. REKORD E (17_, 11_, 14_, 16_, 18_, 19_)
19. REKORD E Estate (61_, 66_, 67_)
20. COMMODORE B
21. See more in applications

The principle of the thermostat work

The classic VEMO 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.