(Summary description)The issue of car battery safety has always been a hot topic in our country. At present, the explosion-proof valve developed and designed by Puwei Company is an explosion-proof, waterproof and breathable product designed for automobile battery packs and battery boxes, which has successfully solved the problem of automobile battery explosion. It has been widely used in batteries such as pure electric vehicles, hybrid vehicles, new energy hybrid vehicles, and hybrid vehicles to promote the rapid development of automotive batteries. Characteristics of PUW explosion-proof valve: To 1. The pressure difference can be quickly balanced on the basis of meeting the IP67 protection level. To 2. Directly communicate with the outside when the burst pressure value is reached. To 3. When the cavity pressure is less than the burst pressure value, it can be used repeatedly. 4. The metal shell has strong corrosion resistance and long service life. Puwei's protective products for automotive battery applications are as follows: PBALM20*1.5-15 PB20AM20*1.5-10 PBALM20 oil-proof pressure relief balance valve PBA4K-50 explosion-proof valve