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. TRANSIT Bus (T_ _)
2. TRANSIT Van (T_ _)
3. SUPER 5 (B/C40_)
4. ZX (N2)
5. 309 I (10C, 10A)
6. 309 � (10C, 10A)
7. 90
8. 90 Saloon
9. 99
10. 99 Saloon
11. 900 I Combi Coupe
12. 900 � Combi Coupe
13. 9000 Hatchback
14. 900 I (AC4, AM4)
15. 900 � (AC4, AM4)
16. 900 I Convertible
17. 900 � Convertible
18. 9000
19. DISCOVERY I (LJ)
20. 900 II
21. See more in applications

The principle of the thermostat work

The classic BGA 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.