LC 25 DB40E7X/-010

***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 LC 25 DB40E7X/-010 (R900770703) is a sophisticated cartridge valve designed for precision pressure control in hydraulic systems. It operates as a pilot-operated valve with both seat and spool configurations, engineered to fit standardized receiving holes according to DIN ISO norms, and secured with a specialized control cover. This model facilitates the implementation of various pressure functions by pairing the cartridge valves with appropriate control covers. The pressure relief function of this valve is characterized by its seat design without an effective area at port B, ensuring that pressure at port A is managed through the pilot oil supply orifice to the spring side of the element. The spool remains closed under set pressure until it reaches the predetermined threshold, upon which it opens to limit port A's pressure as per its characteristic curve. For pressure reducing applications, this valve operates in a normally closed mode, utilizing a combination of a pressure limitation cartridge valve and a control cover with an integrated pressure reducing pilot control valve. The flow from port A to port B is enabled once the main spool opens upon reaching the set pressure, allowing for reduced output according to flow characteristics while potential secondary side pressure surges are directed back to the tank. Additionally, the LC 25 DB40E7X/-010 offers pressure sequencing functions essential for connecting secondary systems based on specific pressures set on an integrated pilot control valve. Pilot oil can be supplied either externally or internally with depressurization of the pilot control spring chamber facilitated through designated ports. This model includes circuit examples such as one for unloading low-pressure systems upon reaching certain pressures and another for engaging additional systems when predetermined conditions are met. These capabilities highlight its versatility in complex hydraulic circuits where reliable and precise pressure management is crucial.