DR20-4-5X=200YM

***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 DR20-4-5X=200YM (R901359580) is a sophisticated pilot-operated pressure reducing valve designed to manage and modulate fluid pressure within hydraulic systems. This model, engineered for precision and reliability, functions by allowing hydraulic fluid to flow from channel B to channel A without restriction when in a resting state. The DR20-4-5X=200YM employs a main spool insert and a pilot control valve with an adjustable pressure element to achieve the desired pressure balance. The valve operates on the principle of maintaining equilibrium between the system's pressure and the force exerted by an adjustment spring. When the pressure in channel A exceeds the spring's set value, it prompts the ball in the pilot control valve to open, which in turn moves the control spool towards a closing direction, establishing the required reduced pressure. This model features external pilot oil return via a control line into the tank and offers an optional check valve for free return flow from channel A back to channel B. It also provides a pressure gauge connection for monitoring reduced pressure in channel A. Designed for versatility, this Bosch Rexroth valve accommodates various mounting options including subplate mounting with porting patterns according to ISO standards or as a threaded connection. It can also be used as a cartridge valve. The DR20-4-5X=200YM comes with multiple adjustment types such as rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale, or rotary knob with scale. Its adaptability makes it suitable for a wide range of applications where precise pressure reduction is critical.