First, the batteryPACKThe central role of airtight testing
As the requirements for battery safety in the new energy vehicle industry continue to increase. Power batteryPACKThe airtightness test of the cladding shell is one of the important quality inspection links before the battery leaves the factory. Its test efficiency and accuracy directly affect the production capacity and quality reputation of the whole line.PACKThe shell is equipped with a variety of orifices, such as high-pressure interfaces, explosion-proof valve interfaces, and coolant import and export ports, with different sizes, shapes, and pressure levels. How to achieve fast, non-destructive, and stable sealing connections has always been the focus of the industry. 
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Second, the interface sealing problems encountered in previous cases
In our previous cases, new energy battery manufacturers were conductingPACKWhen testing the airtightness of the package shell, it has been facing a cumbersome problem for a long time: it is necessary to seal various types of orifices on the shell, such as high-pressure interfaces and explosion-proof valve interfaces, and the interface specifications are different. The traditional method uses different special plugs to seal one by one, which has many operation steps, takes a long time, and is prone to misjudgment due to poor sealing. The customer wants to simplify the operation, reduce the labor intensity, and be able to distinguish between different test scenarios of conventional pressure and high pressure.In response to the above requirements, we provide aQuick seal joint The combined scheme is applied according to the test pressure level.
<=""> Conventional airtight test interface: Adopted
G25ASeries internal expansion quick sealing jointSeal the inner hole without damage and connect in one second.
High Voltage Withstand Voltage Test Interface: AdoptedG35Series high pressure quick seal jointIt is suitable for use scenarios with large tube inner diameter tolerances (such as heat exchangers, injection molded pipe fittings, etc.).
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Special-shaped nozzle: use
G70Series external card type quick sealing jointIt is suitable for air tightness testing of special-shaped nozzles such as cooling water pipe and fuel pipe.
Internal thread interface: AdoptedG80Series Quick Seal CouplingIt is specially used for internal thread holes such as waterproof and breathable valves, and radial locking does not damage the thread. It can be applied to high-pressure air tightness testing of various automotive parts.
IV. Application effect
The scheme is applied to batteriesPACKAfter the airtight test of the package shell, the operator can complete the seal with only one plug and unplug, without repeated confirmation, and the labor intensity is significantly reduced. The entire connection process is completed in one second, the seal is established instantaneously, and the risk of test misjudgment is also reduced. The production line operation is smoother, and there is no need for repeated shutdowns due to sealing problems. 
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The product range is expanded to other core components
GripSeal Quick Seal CouplingNot limited to batteriesPACKPackage. In the testing of other core components of new energy vehicles, various series of products are also applicable: motors and electronically controlled cooling systems (G70Series of special-shaped nozzles such as sealed cooling waterways, water inlet and outlet of electric control boxes); high-pressure pipeline and valve body testing (G35Series ensure connection safety and seal durability in high pressure environments); as well as brake system oil circuit, steering gear housing, thermal management system pump valve interface, air conditioning pipeline, etc.BatteryPACKThe difficulty of package airtightness testing is that there are many types of interfaces and different pressure levels. Grayhill's response idea is not to provide a "universal" connector, but to target conventional inner holes (G25A), internal thread (G80), high pressure pipeline (G35), special-shaped nozzle (G70) to define products separately. This "one scenario, one solution" strategy not only avoids the risk of seal failure due to universal design, but also allows for greater stability and repeatability of the test process.
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As a professional brand in the field of fast sealing connections, GripSeal continuously translates every "sealing challenge" at the customer's site into an input for product iteration. fromPACKPackage to other core components, and adhere to the dual demands of testing efficiency and accuracy with true product capabilities.