THERMOSTAT COOLANT FOR RENAULT TRAFIC/Bus/Van/Platform/Chassis/Rodeo MASTER 2.5L CALORSTAT by Vernet TH3309.74J

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. TRAFIC Bus (TXW)
2. 131 (131_)
3. SUPERBRAVO (131_)
4. ARGENTA (132_)
5. ARGENTA Saloon (132_)
6. DUCATO Panorama (280_)
7. 131 Familiare/Panorama (131_)
8. DUCATO Van (280_)
9. TRAFIC Van (TXX)
10. 131
11. ARENA Combi (A97)
12. ARENA Van (TB, TF)
13. AR 6 Van (280_)
14. AR 8 Van (280_)
15. AR 8 Platform/Chassis (280_)
16. ARENA Van (A97)
17. ARENA Bus (A97)
18. MASTER I Van (T__)
19. TRAFIC Platform/Chassis (PXX)
20. TRAFIC Rodeo (PXX)
21. See more in applications

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.