Introduction of car radiator expansion tank cap for Mercedes Benz：
The car radiator expansion tank cap for Mercedes Benz is also known as the pressure cap. Our car radiator expansion tank cap for Mercedes Benz is a key component of the automobile cooling system. It maintains a specific pressure inside the system (usually 0.9-1.1bar) through a sealed design, which raises the boiling point of the coolant by about 20℃ to prevent high temperature boiling; At the same time, the car radiator expansion tank cap has a built-in two-way valve, which automatically releases pressure to protect the pipeline when overpressure occurs, and inhales air to balance the negative pressure when the coolant shrinks to avoid deformation of the components. We need to regularly check the sealing ring and spring status of the car coolant expansion tank cap. Damage will cause coolant leakage or engine overheating. When replacing, be sure to turn off the fire and operate after cooling to prevent high-temperature steam burns.
The advantages of our production of car coolant expansion tank cap：
Our car coolant expansion tank cap protects the cooling system through precise pressure control. We can provide original factory-grade pressure valves (0.9 Bar/1.1 Bar/1.3Bar, etc. optional). Our purpose is to make our car coolant expansion tank cap accurately match the needs of different models, so as to avoid bursting pipes caused by excessive pressure or opening the pot caused by low pressure; the dual-valve design of our car coolant expansion tank cap (pressure release + vacuum compensation) automatically releases pressure in an emergency to prevent the water tank or water pipe from bursting. In terms of high temperature resistance and long-lasting sealing, our car coolant expansion tank cap uses a fluorine rubber sealing ring (resistant to high temperature of 130℃ and anti-coolant corrosion), and its life span is 3 times that of ordinary rubber; we combined the metal inner core and reinforced spring when producing and designing this car coolant expansion tank cap, so that our v will not rust and deform for long-term use. In addition, our car expansion tank cap has leak-proof and evaporation-proof characteristics. We use a multi-layer labyrinth sealing structure to reduce the evaporation of coolant by 70%, thereby avoiding frequent rehydration; At the same time, our car expansion tank cap can also protect the water pump and thermostat from bubble erosion, improving system stability and economy.
Parameter table of car expansion tank cap：
| Parameter name | Description |
| Pressure threshold | 0.9 Bar, 1.1 Bar, 1.3 Bar, etc. are optional to accurately match the needs of the model |
| Design | Double valve design (pressure release and vacuum compensation) |
| Function | Automatic pressure relief to prevent the water tank/water pipe from bursting, to avoid the pressure is too high to burst the pipe or too low to open the pot |
| Sealing ring | Fluorine rubber sealing ring, resistant to high temperature of 130℃, anti-coolant corrosion |
| Life span | The life span is 3 times that of ordinary rubber |
| Other parts | Metal inner core, reinforced spring, no rust or deformation after long-term use |
| Sealing structure | Multi-layer labyrinth sealing structure |
| Reduced evaporation | Coolant evaporation is reduced by 70% |
| effect | Avoid frequent rehydration and protect the water pump/thermostat from air bubbles |
About us：
Our company focuses on the production and manufacture of automotive cooling systems, hoping to provide car owners around the world with the best quality auto parts.Our car expansion tank cap is one of the core components of the cooling system. It can not only accurately control the pressure, so that the internal pressure of the system is stable between 0.9-1.3Bar, we also use a unique dual-valve design (pressure release and vacuum compensation) to effectively prevent the water tank or water pipe from bursting due to overpressure, and avoid the phenomenon of opening the pot caused by low pressure.Our car expansion tank cap uses a metal inner core and reinforced springs to ensure that it does not rust or deform after long-term use, providing long-lasting and reliable protection for your car.
We pay special attention to the safety and durability of our products.The built-in fluorine rubber sealing ring of car expansion tank cap can withstand high temperatures up to 130℃ and effectively resist the corrosion of coolant. Its service life is three times that of ordinary rubber.The multi-layer labyrinth sealing structure further reduces the evaporation of coolant by 70%, greatly reducing the need for frequent rehydration, while also protecting the water pump and thermostat from bubble erosion, and improving the stability and economy of the entire cooling system.
Choosing our company's car expansion tank cap means choosing high-quality and cost-effective products.We always, and adhere to customer-centric, and constantly pursue technological innovation and excellent quality to ensure that each car expansion tank cap can meet the precise needs of different models and escort your driving experience.Whether it is a daily commute or a long-distance trip, our car expansion tank cap is your trustworthy choice.
A: Our products have passed ISO/TS 16949 quality management system certification, and meet the European CE, Russian GOST and other regional standards. Specific certification can be provided according to customer needs.
A: Yes! Please provide your requirements or refer to our product catalogue on the website. We will send you detailed technical documents (including size, material, vehicle type, etc.).
A: The regular model is available in stock, and the delivery cycle is 3-5 working days; the production cycle of customized products needs to be confirmed according to the order.
A: Please provide the brand, model and year of the vehicle (such as BMW 2020), we will match the corresponding accessories.
A: We provide OEM number comparison service or verify compatibility through third-party tools.
A: The default quotation is the factory price (excluding tax). If you need FOB price, you need to specify the freight forwarder and bear the international freight, we will cooperate with you.
A: The larger the order volume, the higher the discount. For example: -MOQ 100 pieces: unit price $10. -MOQ 500 pieces: unit price $8. Specific step prices can be negotiated after the procurement plan is provided.
A: The quotation is not included in tax (tax number of customer is required for export tax exemption in China). If DDP (tax paid delivery) is required, additional tax confirmation is required.
A: You can send the purchase list by email or submit the order online (official website link), we will confirm within 24 hours.
A: The modification can be made free of charge before production; the cancellation during production will incur the material loss fee (30% of the order amount); the cancellation after delivery is not allowed.
A: The freight shall be borne by your company under FOB price; the cost to the destination port/denominated place shall be borne by us under CIF/DAP price.
A: To be provided: -Commercial invoice (including HS code). -Packing list. -Certificate of origin (FORM A). -Technical documents (e.g. product certification certificates). We can assist in preparing the documents, but the customer is responsible for customs clearance.
A: It can be agreed to take the spot selling price of the Bank of China at the time of signing the contract as the benchmark, or avoid the risk of volatility through forward exchange contracts.
A: 2 years and 60,000 kilometers, electronic components 1 year warranty.
A: Please provide photos, test report and batch number to confirm the quality problem: -Free replacement or repair within the warranty period (24 months); -Negotiate partial compensation for non-quality issues.
A: The return freight shall be borne (except for quality problems), and the return shall be confirmed by our quality inspection.
A: Provide multi-language installation video and graphic manual, complex accessories can arrange engineers for remote guidance.
