Recently, PUW announced the completion of a major capacity upgrade, adding one fully automated assembly production line and one semi-automated assembly production line to meet rapidly growing global demand for battery safety components in the new energy vehicle market.
The expansion involves a total investment of several million RMB and will increase annual explosion-proof valve capacity by 20%. The fully automated production line adopts an internationally leading intelligent manufacturing system, enabling full-process automation and increasing production efficiency by 200%. Intelligent inspection is implemented at key processes, ensuring high product consistency.

As ranked No.1 in market share for power battery pack industry for years, PUW’s pressure relief device/explosion-proof valve products draw on years of technological accumulation and mass-production experience, which can instantly open a pressure relief channel when abnormal pressure occurs in the battery pack, reducing the risk of thermal runaway while maintaining excellent protective performance. We have a CNAS-certified laboratory and more than 200 patents. our products have been adopted by globally renowned manufacturers such as C-company, Geely, BYD, and SAIC. The new capacity will further shorten delivery lead times and strengthen global service response capabilities.
About PUW
Founded in 2010, PUW focuses on products such as pressure relief valves/explosion-proof valves and waterproof breathable valves, which are widely used in new energy vehicles, energy storage systems, and other fields. PUW is committed to safeguarding safety in every application.
Hot News2026-09-11
2026-09-01
2026-08-21
2026-08-13
2026-07-29
2026-06-17