***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 DR20-4-4X/200YM (R900418952) is a pilot-operated pressure reducing valve designed to manage system pressure effectively. This valve is primarily composed of a screw-in cartridge valve and housing, which can be specified with or without an integrated check valve for subplate mounting applications. In its default state, the DR20-4-4X/200YM allows hydraulic fluid to flow unimpeded from the inlet to the outlet channel, with system pressure being regulated by the main control spool and a spring mechanism.
The functionality of this valve hinges on its ability to maintain consistent pressure in the outlet channel as set by the spring. When outlet pressure surpasses the spring's set value, a pilot poppet activates, allowing hydraulic fluid to move from one side of the main control spool through a nozzle and into the spring chamber, prompting the spool to adjust and stabilize pressure at predetermined levels. It's important to note that pilot oil return must be externally routed through port Y.
For installations requiring subplate mounting designated as version P, there's an option to integrate a check valve that permits free return flow between channels A and B. The DR20-4-4X/200YM features various adjustment types such as a rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale, and rotary knob with scale for precise control.
This model adheres to ISO porting patterns for subplate mounting and can also be utilized as a cartridge valve for threaded connections. With component series X; X maximum operating pressures are sustained up to bar levels. Users should be aware that any pressure present in port Y will contribute to the set reduced pressure value maintained by this robust Bosch Rexroth pressure reducing valve.
$1,120.00 USD
More are expected on January 28, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as January 28, 2025 when ordered in