The Sun CSABXXN is a high-performance, standard capacity counterbalance valve designed for superior motion control in hydraulic systems. As a vented, pilot-assisted relief valve with an integral free reverse flow check valve, it is engineered to control overrunning loads and provide smooth, stable operation. The vented spring chamber ensures that the valve’s setting is independent of back pressure at port 2, making it ideal for applications with variable downstream pressures. The ‘XXN’ configuration signifies a non-adjustable, factory-set, tamper-resistant control, ensuring consistent performance and safety in demanding environments.