In this section of the Enrique Requena online catalogue, you will find a wide selection of expansion tanks<\/strong> specifically designed for heavy-duty and commercial vehicles. These components are essential for balancing internal pressure and managing coolant volume variations caused by temperature changes during engine operation.<\/p>\r\n Our range is aimed at professional workshops and fleet managers who require compatible spare parts for maintaining the thermal circuit. Having an intact, crack-free expansion tank is vital to prevent coolant loss, avoid overheating and facilitate visual inspection of fluid levels during routine maintenance checks.<\/p>\r\n\r\n Its function is to absorb excess coolant that expands when the engine heats up and return it to the radiator when it cools down. It also acts as a bleed point to remove air bubbles from the system and allows the circuit to be easily refilled.<\/p>\r\n\r\n Immediate replacement is recommended if cracks in the plastic are detected, leaks at the seals appear, or if the material has turned yellowish\/opaque, making the fluid level difficult to see. It should also be replaced if the material has become brittle due to continuous thermal cycles.<\/p>\r\n\r\n This depends on the specific product reference. Some models are supplied complete with the level sensor pre-installed, while others include only the plastic tank, requiring reuse of the old sensor or purchase of a new one. Please consult the product description.<\/p>\r\n\r\n No, the cap must be rated to the specific pressure required by the vehicle\u2019s cooling circuit. Using a cap with incorrect pressure may cause leaks due to overpressure or prevent the system from reaching the proper operating temperature.<\/p>","link":"https:\/\/www.enriquerequena.com\/en\/category-product\/spare-parts-replacement-parts-refrigeration\/expansion-tanks\/","name":"Expansion tanks","slug":"expansion-tanks","taxonomy":"product_cat","parent":9841,"meta":[],"menu_order":0,"yoast_head":"\nCriteria for choosing the correct expansion tank<\/h3>\r\n
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Frequently Asked Questions<\/h2>\r\n\r\n
What is the main function of the expansion tank?<\/h3>\r\n
When should I replace the expansion tank of a heavy-duty vehicle?<\/h3>\r\n
Do replacement tanks include the level sensor?<\/h3>\r\n
Is any cap compatible with the new tank?<\/h3>\r\n