The Argo Hytos SR1A-B2 Pressure Relieving Valve is a direct-acting hydraulic relief valve designed as a screw-in cartridge for easy integration into hydraulic systems. Its purpose is to limit pressure within the hydraulic circuit to prevent damage from overpressure situations. This poppet-type valve operates with a spring pressing the poppet onto the valve seat. When hydraulic pressure surpasses the pre-set value, the valve opens, allowing flow to the tank port until pressure decreases. Featuring excellent stability, rapid response to pressure changes, and low hysteresis, this valve ensures accurate pressure control and minimal pressure drop. With hardened precision parts and dirt-tolerant steel seats, it offers long-lasting performance with leak-free closing for fast cycling and extended life. Adjustable using an allen key or hand screw, the valve also comes with zinc coating for corrosion protection.