The Sun QPAC-LAN is a high-performance, pilot-assisted, balanced poppet counterbalance valve. Designed as a screw-in hydraulic cartridge valve, it is engineered to effectively control overrunning loads by preventing the load from running ahead of the pump. The balanced poppet design ensures minimal pressure rise as flow increases, providing stable and smooth operation. This valve is also suitable for thermal expansion relief applications. Its robust construction and reliable performance make it a preferred choice for demanding mobile and industrial hydraulic systems requiring precise load holding and motion control.