Radiator Pressure Caps
When the car is running, the temperature of the coolant rises and the pressure in the radiator increases. When the pressure reaches a certain level, the pressure valve of the radiator cap is pushed open by the pressure, and the flushed coolant will flow into the expansion tank next to it, and then when the pressure reaches a certain level, the pressure valve of the radiator cap is opened by the pressure. The car stops working, and when it cools down, the vacuum's cooling system sucks the coolant from the expansion tank back into the radiator.
Key Features of Radiator Pressure Caps
Stable performance of pressure valve.
Good sealing, no coolant leakage.
Strong corrosion resistance.
How To Test Radiator Pressure Caps？
The radiator pressure cap is used to seal the engine cooling system and adjust the working pressure of the system. How to test?
1) Use a special manual press to pressurize the car radiator cap pressure.
When the pressure on the press and the pressure gauge reading suddenly drop, it means that the press valve is opened, and the opening of the press valve should meet the regulations.
2) Check the radiator pressure capvalve seat.
① Check that the valve seat expands outward so that the end of the plunger cannot be seen when the plunger is raised vertically from the top
② Check the valve seat for soil accumulation and damage.
3) Pull out the negative pressure valve to open it, and confirm whether it can be fully closed after the pressure is released.
① Confirm that there is no dirt or damage on the valve seat of the negative pressure valve of the radiator pressure cap.
② Confirm that the opening and closing operation of the negative pressure valve is normal.
4) Release pressure of the radiator pressure cap.
When connecting the radiator pressure cap to the radiator pressure cap tester and tester connector, apply the coolant to the cap sealing surface, and then check the release pressure of the radiator pressure cap.
Standard Pressure: 78~98kPa, Limit: 59kPa
5) If abnormality is found in the above three inspections, replace the radiator cover.
The inspection of the radiator pressure cap is very important, if it does not work properly, it will cause the engine to overheat.
For more information about radiator pressure cap priceand radiator cap type, please feel free to contact us!
If you need any kinds of auto spare parts, please contact us, as a professional auto spare parts company, MAPMS is willing to offer you high quality products.
Send product request
Other supplier products
 |
Ignition Coil Rubber Boots | MAPMS supplies car rubber boots for COP and pencil ignition coils, which is made of high-quality silicone, and with withstand high pressure over 40... |
 |
Auto Car Thermal Expansion Valves | The auto ac expansion valve of the automotive air conditioner is installed at the entrance of the evaporator, and has two main functions. Throttle... |
 |
Windshield Wiper Blades | Because of legal requirements, almost everywhere cars must be equipped with windshield wiper cutter. The windshield wiper cutter also has the chara... |
 |
Ultrasonic Sensors | Ultrasonic sensors convert ultrasonic signals into other energy signals usually electrical signals, and have the dual functions of transmitting and... |
 |
Automotive Sensors | Sensor for automotiveis the input device of automotive computer system. It converts information of various working conditions, such as vehicle spee... |
Same products
 |
Solid Tire For Mini Wheel Loader | Seller: Zhejiang Tongchao Industry and Trade Co., Ltd. | Solid Tire For Mini Wheel Loader（） It is composed of low heating and cutting-resistant materials... |
 |
RFG009 One-Piece forged barrel Series | Seller: Taizhou Dishun Trading Co., Ltd. | We have internationally advanced wheel rim production equipment, large-scale spraying productio... |
 |
entrance door locks handles | Seller: Wuyi Jiamin Locks Co., Ltd | Our entrance door locks handles are crafted from the highest quality materials, ensuring robustne... |
 |
Aluminum alloy rim -K | Seller: Jinhua Yosocoma Technology Co., Ltd. | Jinhua Yosocoma Technology Co., Ltd. locates in Jinhua city of Zhejiang Province, which is aAlumi... |
 |
fire rated door locks | Seller: Wuyi Jiamin Locks Co., Ltd | Elevate your building's safety standards with our premium fire rated door locks. Engineered to en... |
