LESER OEM Parts

API Series Valves

Pressure Relief Valves according to API 526 with standardized capacities and dimensions

  • Compliance with API 526
  • Diverse selection of high-alloy materials available as standard
  • Longer lifetime due to hardened discs, partly stellited seats and integrated shielding of the optional bellows
  • Single trim: Identical internal parts for S/G/L for cost-effective maintenance
  • LESER Nanotightness: Exceeds the tightness requirements of API 527 by 50%

High Efficiency Pilot Operated Valves

Solutions for high plant efficiency

Pilot operated pressure relief valves

  • Highest blow-off capacity of all series
  • Tightness right up to set pressure
  • Operating pressures up to 96% of the set pressure
  • Back pressures up to 70% of the set pressure
  • Backflow preventer integrated as a standard component
  • Integrated Piping prevents damage and freezing

Supplementary Loading System

  • Tightness right up to set pressure
  • Operating pressures up to 97% of the set pressure
  • Low loss of medium due to short opening times
  • Function test and valve adjustment possible during operation
  • Suitable for all media temperatures

Compact Performance Series Valves

Pressure Relief Valves with compact dimensions and high connection variety

Standard delivery time for all options 14 days ex works. Only a few meow complex options have longer delivery times.

  • Flanged and threaded valves with a wide range of options
  • Small installation space with simultaneous horizontal installation option
  • Bellows version available
  • Set pressures up to 850 barg / 12325 psig
  • LESER Nanotightness: Exceeds the tightness requirements of API 527 by 50%