With the continuous popularization of new energy vehicles, higher requirements have been put forward for thermal management of new energy vehicles in order to solve the problems of range and thermal safety in winter and summer. As the core component of the Enhanced Vapor Injection compressor, the Four-way valve technology developed by Posung Innovation has successfully overcome multiple industry challenges, providing reliable guarantees for the stable operation of heat pump systems in extreme environments.
A prominent feature of the Posung Four-way valve is its small size, which can be directly integrated into the suction port of the compressor. This design minimizes the number of interfaces to the greatest extent possible, effectively reducing potential leakage points and improving the overall reliability of the system.

Product models such as small displacement PD2-14012AA, PD2-30096AJ, and large displacement PD2-50540AC are fully compatible with environmentally friendly refrigerants such as R134a, R1234yf, R290, and have passed international certifications such as ISO9001, IATF16949, E-MARK, providing efficient and reliable valve solutions for global heat pump manufacturers. Its excellent low-temperature performance and energy efficiency make it an ideal choice for heat pump systems in cold regions.


In addition, the valve core is made of special wear-resistant materials, which can reliably switch between high and low pressure differentials above 30 bar, fully meeting the working conditions of the heat pump. The system does not need to stop for switching, and the switching time only takes 7 seconds.
In summary, integrated Four-way valve technology represents a significant leap in compressor design, providing enhanced performance, ease of installation, and reliability for modern vehicles. With the continuous development of automotive technology, components such as the Four-way valve of the Posung Enhanced Vapor Injection compressor will play a crucial role in improving efficiency and innovation.
Post time: Aug-04-2025