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The Lithium battery packs represent a wonderful achievement in engineering and the management of pressure is vital in ensuring the safety of these packs. In the event a battery pack is not able to breathe the internal pressure accumulates until something explodes.. PUW has actually taken over ten years to address this issue by continually innovating. In fact, PUW has already become a leader in the explosion-proof valve industry within China and contributed to the realization of the maximum level of safety by battery manufacturers without compromises in performance or service life.
The Hidden Danger Inside Every Battery Pack
Proper functioning of all lithium battery packs generates heat. The heat makes the air in the tightly sealed housing to expand. The pressure may be suddenly increased and quite drastically when a car is charged at a high speed, when it is driven at high temperatures or when it is used in extreme weather. In the absence of a proper venting solution, such pressure can lead to the bulging of the housing, cracking of seals or in the worst scenario, the pack itself may blow up. PUW explosion-proof valves mitigate this risk. They offer fast pressure venting when the internal pressure surpasses a secure limit then automatically re-seal to keep safeguarding the battery. This smart reaction does not require any electronics or moving components, but rather it depends on an accurate-engineered membrane technology.
IP68 Protection Without the Trade-Off
It is a conventional wisdom that an enclosure which is waterproof cannot be a good venting enclosure simultaneously. PUW has broken this supposition. The explosion-proof valves allow battery packs to have IP68 ratings, fully dust-tight, and able to endure extensive water immersion. The waterproof breathable membrane, a specially developed material that allows air and pressure to get inside the product, but not water, dust or any other contaminant, is the essence of the innovation. This means that a battery pack can actually survive road spray, rainstorms and even temporary floods but will never lead to accumulation of harmful pressure in the pack. This is a combination of venting and protection required in electric vehicles, and outdoor systems of batteries.
Over 200 Patents and a CNAS Lab Driving Continuous Improvement
The originality of PUW lies in the strength of the engineering capabilities. The company has a CNAS accredited laboratory that has a special research and development unit. The pair has created more than 200 patents that are resolutions to a particular pressure management issue. Such an innovation dedication enables PUW to provide customized and precision engineered solutions to virtually any battery pack design. PUW can design the correct solution whether it is a customer who requires a valve with lower rate of cracking pressure, high rate of flow, a certain size of thread, or the ability to resist certain chemicals. All the products undergo intensive tests to ensure that they work in various temperatures, humidity variations and long term vibrations as well.
Quality Standards That Global Manufacturers Trust
Innocentia nihil est. The PUW products have passed the requirements of international quality control like the ISO 9001 and the IATF 16949 the most difficult quality management framework in the automobile sector. The company is also an ISO 14001 adhered to in the environmental management systems. These are not wall badges. They are actual processes of traceability, prevention of defects and constant enhancement of all production lines. When a worldwide battery producer has fitted a PUW explosion-proof valve, they are fully informed of what they are purchasing, they can be assured that all the units of each production lot are of exactly the same high quality.
Global Infrastructure Ensuring Reliable Delivery
PUW operates two large production facilities around 40,000 square meters in Jiangxi and Guangdong provinces in China and four service centers in China and Germany. The company has 22 production lines but can serve large scale battery manufacturers and still have customized orders. Flexible supply chain and intelligent inventory system can guarantee the timely delivery and professional customer service team collaborates with clients to address technical questions or problems with logistics promptly. This reliability of supply chain is almost as critical as the product itself to the battery pack manufacturers with tight production cycles to meet.
Proven Protection Across the Battery Industry
The explosion-proof valves are used in several applications like sensors, outside LED lighting, solar energy systems, telecommunications equipment and automotive electronics, but the explosion-proof valve usage of lithium battery packs has been a highly critical application of PUW explosion-proof valves. As the energy density required and long life required in electric vehicles, portable electronics and energy storage systems, pressure management is bound to become more important. PUW continues to take the explosion-proof valves to extremes and redefine the safety standard by patent after patent. PUW offers an innovation and reliability to battery manufacturers who are not keen on compromising on protection.
