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. REKORD E (17_, 11_, 14_, 16_, 18_, 19_)
2. REKORD E Estate (61_, 66_, 67_)
3. OMEGA A (V87)
4. OMEGA A Estate (V87)
5. SENATOR A (29_)
6. SENATOR B (V88)
7. FRONTERA A (U92)
8. CARLTON Mk III Saloon (V87)
9. CARLTON Mk III Estate (V87)
10. SENATOR Mk II (B) (V88)
11. FRONTERA Mk I (A) (U92)
12. See more in applications

The principle of the thermostat work

The classic TOPRAN 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.