***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 H-4WMM32E5X/FSO12 (R900452504) is a direct operated directional spool valve with manual actuation through a hand lever. This high-quality valve is designed to control the start, stop, and direction of fluid flow within a hydraulic system. It features a robust housing and includes a hand lever, control spool, and one or two return springs to maintain the spool in its central or initial position when deenergized. The H-4WMM32E5X/FSO12 valve is characterized by its ease of operation; the hand lever directly actuates the control spool via a socket and bolt mechanism, enabling precise movement from rest to the desired end position. After operation, when the hand lever is reset to zero, the return spring ensures that the control spool reverts back to its rest position. This model also includes detents which lock all spool positions for reliable performance in various applications. The porting pattern of this valve conforms with DIN form A and ISO standards, ensuring compatibility with widespread industry practices. Noteworthy features include protection of the actuation mechanism against contamination and humidity ingress, enhancing durability in challenging environments. Additionally, the head end with the actuation mechanism can be exchanged without disassembling the entire valve unit – an advantage for maintenance and serviceability. The H-4WMM32E5X/FSO12 also supports optional inductive position switches and proximity sensors for contactless detection of spool position, thereby expanding its application capabilities for modern hydraulic systems requiring precise control inputs.