Vacuum-type car antifreeze filling and draining kit, used for draining and refilling the coolant. It sucks in the antifreeze under negative pressure, reducing air residue in the pipelines. Equipped with a pressure gauge, it is compatible with most vehicle models through multiple-sized connectors. The accessories are stored in a hard tool box. Easy to operate, suitable for auto repair and maintenance.

The set includes components such as a pressure gauge, connection hose, conversion connector, and negative pressure valve body. The pressure gauge can directly monitor the internal pressure of the pipeline, facilitating the operator to observe the vacuum state and determine the sealing condition of the pipeline. The hose is made of anti-aging material, suitable for the working environment of coolant, and the connector is made of brass, which is tightly connected and less likely to leak during operation. The conversion connectors come in multiple specifications, which can adapt to the majority of vehicle water tank openings, meeting the maintenance needs of different vehicles.This vacuum-type antifreeze fluid replacement tool is mainly used for the extraction, emptying and refilling of coolant during car maintenance. It uses the principle of negative pressure to complete the replacement of coolant in the water tank, and is suitable for auto repair shops and DIY vehicle maintenance. The entire set of accessories is stored in a hard tool box, with separate card slots to fix each part, making it convenient to carry and store, and reducing the risk of accessory loss.

The operation process is to first vacuum, remove the air inside the cooling system, and then rely on negative pressure to suck in the new antifreeze fluid, reducing the residual air in the cooling pipeline and reducing the air resistance problem, ensuring the normal operation of the cooling system. Compared with the traditional refilling method, it reduces the steps of repeated exhaust. The operation logic of the tool is clear, and by simply connecting the pipeline according to the steps, the operation can be carried out without the need for complex equipment support.

Before use, it is necessary to confirm that the pipeline connection is in place, check if the hose is damaged, to avoid leakage during the operation. During operation, follow the vehicle maintenance specifications, wait for the engine to cool down before disassembling and assembling to prevent the hot coolant from scalding. After the operation, empty the residual liquid in the pipeline, clean and dry the accessories, and dry them before placing them back in the tool box for storage, to extend the service life of the tool.

This tool can complete the integrated operation of coolant emptying, vacuuming and refilling, helping maintenance personnel replace antifreeze more standardly, reducing the problems caused by air stagnation, such as abnormal water temperature and poor cooling, and is a practical auto repair tool for vehicle cooling system maintenance.