R901162717 Rexroth relief valve MHDBN 32 K2-3X/420VFK M9 multi-way valve

1. Product Overview

This is a product produced byRexrothIt is apilot-operated relief valveand belongs to theMHDBN series. This valve is mainly used forlimiting the maximum working pressure of the hydraulic systemand plays the role ofoverload protection. When the system pressure exceeds the set value, the valve opens, and the excess oil overflows back to the oil tank, thus preventing the system pressure from being too high and damaging the components.

2. Core Features

• High pressure and large flow:The nominal diameter is NG32 (CETOP 10), and the rated pressure is as high as420 bar, which can handle high-pressure and large-flow heavy industrial hydraulic systems.

  
  

• Pilot-operated structure: It adopts a two-stage spool structure (main valve + pilot valve), with the advantages ofwide pressure adjustment range, good pressure stability, and small impact during unloading.

  
  

• Multiple control modes: The "K2" in the model usually indicates that it has thesecondary pressure adjustment (dual set values)function, which can switch between two preset pressure values through an external signal, suitable for energy-saving systems that require a "low-pressure unloading/high-pressure working" cycle.

  
  

• High reliability: It is made of high-quality alloy steel. After precision machining and heat treatment, it can work stably for a long time under high pressure and impact loads.

  
  

3. Typical Applications

• Large hydraulic presses: Used for pressure-limiting protection and unloading control of the main cylinder.

  
  

• Metallurgical equipment: Used for overload protection of the hydraulic systems of heavy equipment such as rolling mills and shears.

  
  

• Shipbuilding and offshore engineering: Used as safety valves for high-power hydraulic systems such as deck machinery and steering gears.

  
  

• Testing equipment: Used for pressure control and overpressure protection of large hydraulic test benches.