The Argo Hytos SR4A-B2 Pressure Relieving Valve is a pilot-operated, spool-type hydraulic relief valve designed for controlling pressure within hydraulic systems. Installed as a screw-in cartridge, it serves as a pressure limiting device, ensuring that the pressure remains within safe limits. This valve operates quickly with low hysteresis, offering accurate pressure control and minimal pressure drop. Notably, its absence of internal seals contributes to excellent reseating and repeatability characteristics. While suitable as a primary pressure control element, its two-stage design makes it less suitable for safety applications requiring critical operating speeds. With features like high flow capacity, hardened precision parts, and adjustable settings using an allen key or hand screw, this valve is ideal for applications requiring precise and repeatable pressure control. Additionally, it comes standard with zinc coating for corrosion protection according to ISO 9227 standards.