THERMOSTAT COOLANT FOR FIAT RITMO/Convertible STRADA REGATA/Weekend CROMA 1.1L VALEO 819882

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. 164 (164_)
2. 164 Saloon (164_)
3. 168 (164_)
4. RITMO (138_)
5. STRADA (138_)
6. REGATA (138_)
7. REGATA Saloon (138_)
8. REGATA Weekend (138_)
9. PRISMA (831_)
10. DELTA I (831_)
11. DELTA � (831_)
12. THEMA (834_)
13. THEMA SW (834_)
14. DEDRA (835_)
15. CROMA (154_)
16. 900 I Combi Coupe
17. 900 � Combi Coupe
18. 900 I (AC4, AM4)
19. 900 � (AC4, AM4)
20. XJ Coupe
21. See more in applications

The principle of the thermostat work

The classic VALEO 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.