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Poppet Type, Pilot Operated, Metric Cartridge – DB10120A

Pressure relief valve DB10120A

The pressure relief valve DB10120A is a pilot-operated, spring-loaded poppet valve.

Its function is to relieve pressure on the system and close is its normal position. Therefore, if the pressure at port 1 exceeds the preset spring tension, the pilot stage opens and oil flows from behind the main piston to tank port 2. Then, the resulting differential pressure causes the main piston to move against the return spring and allows oil to flow from port 1 to port 2.
This continues until the system pressure is equal to the spring tension and the valve closes again.

See datasheet for drawings, dimensions, model code, etc…


  • Excellent stability throughout the entire flow range
  • Low hysteresis and accurate pressure control
  • External surfaces zinc-plated and corrosion-proof
  • Hardened and ground internal valve components to ensure minimal wear and extended service life
  • Low-pressure drop by CFD optimized flow path
  • Various pressure ranges up to 350 bar
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