Thermostat, coolant - TH5069.87J CALORSTAT by Vernet

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 (141_)
2. PANDA Hatchback Van (141_)
3. UNO (146_)
4. Y10 (156_)
5. PUNTO (176_)
6. PUNTO Convertible (176_)
7. CINQUECENTO (170_)
8. Y (840_)
9. TIPO (160_)
10. PALIO (178_)
11. PALIO Weekend (178_, 173_, 373_, 374_)
12. WEEKEND Weekend (178_, 173_, 373_, 374_)
13. PALIO WEEKEND / WEEKEND Weekend (178_, 173_, 373_, 374_)
14. PALIO WEEKEND Weekend (178_, 173_, 373_, 374_)
15. PUNTO Van (176_)
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17. STRADA Pickup (178_)
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19. SIENA (178_, 172_)
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The principle of the thermostat work

The classic CALORSTAT by Vernet 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.