H4130410002A0 Water Tank Use for SINOTRUK HOWO HOHAN FAW SHACMAN DONGFENG BEIBEN FOTON Spare Parts

**Accommodation of Expanding Fluid:** When heated, the coolant expands in volume, and excess fluid flows into the expansion tank to prevent excessive pressure in the cooling system.

**Coolant Replenishment:** As the coolant cools, it contracts in volume, creating negative pressure. Fluid in the expansion tank is drawn back into the main system, maintaining a consistently full system and preventing cavitation.

**Air Expulsion:** Air within the cooling system is carried to the highest point of the expansion tank via circulation and then enters the upper part of the expansion tank through piping, achieving water-air separation and ensuring efficient cooling.