Thermostat, coolant - 352317100460 MAGNETI MARELLI

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. PANDA (169_)
2. PANDA / PANDA CLASSIC (169_)
3. 500 (312_)
4. GRANDE PUNTO (199_)
5. PUNTO (199_)
6. PUNTO EVO (199_)
7. YPSILON (843_)
8. MUSA (350_)
9. BRAVO II (198_)
10. RITMO III (198_)
11. PANDA Hatchback Van (169_)
12. DOBLO Platform/Chassis (263_)
13. PRATICO Platform/Chassis (263_)
14. IDEA (350_)
15. MITO (955_)
16. PUNTO Hatchback Van (199_)
17. PUNTO PURE (199_)
18. DOBLO MPV (119_, 223_)
19. DOBLO Box Body/MPV (223_)
20. DOBLO MONOCAB (223_)
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The principle of the thermostat work

The classic MAGNETI MARELLI 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.