Expansion Tank Water Return Pipe for Land Rover Overflow Hose OE LR024251 Compensating pipe

Product Description:

Auto Expansion Tank Hose
OE number: LR024251 LR060347
Applicable vehicle type: For Land Rover

The expansion tank hose, also known as the overflow pipe or compensating pipe, is a dedicated conduit connecting the main circuit of the engine cooling system (typically the radiator or make-up water inlet) to the expansion tank (secondary reservoir).

Though structurally simple, it serves as the critical lifeline for pressure management and fluid level compensation within the cooling system. Its function is to direct coolant into or out of the expansion tank in response to pressure fluctuations within the system.

Common faults in automotive expansion tank hoses:

• Ageing and cracking: Surface cracking occurs, a typical manifestation of rubber degradation due to prolonged exposure to high temperatures and ozone erosion.
• Hardening or softening: Material degradation leads to loss of elasticity, causing hoses to detach at joints or become obstructed due to kinking.
• Leakage: Cracks in the hose body or loosened clamps at joints result in coolant leakage.
• Blockage: Internal obstructions from scale or debris impede flow, compromising compensatory function.

The expansion tank hose serves as a compact yet vital ‘safety valve’ component. It discreetly maintains pressure equilibrium and fluid level stability within the cooling system, acting as a critical conduit to prevent excessive pressure build-up or vacuum formation.

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