LC25A40E7X/-004

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth LC25A40E7X/-004 (R900920275) is a state-of-the-art way cartridge valve designed for integration into a compact block design. This product is engineered to facilitate pressure, directional, and throttle functions or their combinations by being controlled with corresponding pilot control valves. The power section of the valve, featuring connections A and B, is standardized according to ISO norms and fits seamlessly into a control block that is securely sealed with a cover. This cover also serves as the bridge for control signals to the pilot valves. The LC25A40E7X/-004 consists of a control cover that houses the control bores and can include additional features like stroke limitation, hydraulically operated directional seat valves, or shuttle valves tailored to the required function of the system. For electrical operation, directional spool or seat valves can be accommodated on the control cover. The installation kit includes essential components such as a bushing, ring (for specific sizes), valve poppet (with optional damping nose), and closing spring. This way cartridge valve operates based on pressure differentials across three critical areas—A1, A2, and A3—with varying area ratios of 0.7:1 or 0.3:1 between A1 and A2. These ratios influence the opening and closing forces acting on the valve spool, which determines its position. The valve allows flow from A to B or B to A with pressurization of area A3 through pilot oil discharge from channel B or an external supply; meanwhile, channel A remains non-leaking when blocked. In summary, Bosch Rexroth's LC25A40E7X/-004 offers versatile functionality for hydraulic systems requiring precise control over flow and pressure within a compact design framework. Its modular nature allows for efficient solutions tailored to various flow requirements of actuators in complex hydraulic circuits.