LFA40DBW2-7X/400/12

***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 LFA40DBW2-7X/400/12 (R900949042) is a sophisticated way cartridge valve designed for pressure functions, including both pressure relief and pressure reducing applications. This pilot-operated valve comes in both seat or spool configurations and is installed into a standardized receiving hole according to DIN ISO, with a control cover to complete the assembly. The pilot control valve can be either manually or electrically proportionally adjusted for pressure and is integrated into or mounted on the control cover, following mounting dimensions set by DIN. This model allows for various pressure functions by combining different cartridge valves with corresponding control covers. For the pressure relief function, the LC . DB... type cartridge valve operates as a seat valve without an area difference at port B, ensuring that the effective pressure at port A is managed by the pilot oil supply orifice to the spring side of the element. The spool remains closed under spring force until reaching the set pressure when it opens to limit pressure at port A based on its characteristics. In terms of its pressure reducing functionality, this model features a rest position that remains open. Similar to its relief counterpart, it's designed as a spool valve with no effective areas at port B. It uses identical cover types as for the relief function (type LFA..DB...) and regulates flow from port B to port A until reaching the set pressure when it closes to reduce pressure at port A accordingly. The unit offers flexibility in hydraulic systems through its various configurations for manual adjustments and electrical proportional control. It ensures reliable operation in circuits requiring precise control over flow and pressure management while maintaining robust performance characteristics suitable for demanding applications.