THERMOSTAT COOLANT FOR MERCEDES-BENZ T1/Bus/Platform/Chassis T2/L/Van/N1/Dump VALEO 820768

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. T1 Bus (601)
2. T1 Platform/Chassis (601)
3. T2/L Van
4. T2/L Platform/Chassis
5. T2/LN1 Van
6. T2/LN1 Platform/Chassis
7. T2/LN1 Dump Truck
8. T2/LN1 Bus
9. T2/LN1 Cab with engine
10. VARIO Platform/Chassis
11. VARIO Van
12. VARIO Dump Truck
13. VARIO Bus
14. VARIO Cab with engine
15. T2/L Municipal Vehicle
16. T2/L Dump Truck
17. 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.