DB Series Pressure Relief Valve, Poppet Type, Direct-Acting Metric Cartridge – 420 bar

Key Features

  • Excellent stability throughout the entire flow range
  • 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 420 bar
  • Up to 120 l/min
  • Up to 420 bar

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The pressure relief valve DB12120A is a direct-acting, spring-loaded poppet valve. Its function is to relieve pressure in the system. It is normally closed. If the pressure at port 1 exceeds the pre-set spring tension, the poppet is lifted off the seat and oil flows from port 1 to port 2.

This continues until the system pressure is equal to the spring tension and the valve closes again.

Important: Pressures at port 2 are additive to the opening pressure! If the connections are incorrect or if the pressure has been set above the operating pressure, the safety function of the valve is disabled.