SIL4S Kft supply the following service for satisfaction of our partner: to give technical assistance, service consultancy and studies in the Process Industry and the Factory Automation grouping as follows:

1.1 Process Safety: Shut down Systems

  • SIL 3 ESD systems
  • SIL 3 HIPPS Systems

1.2 ATEX

  • ATEX 100a, about equipment and procedure in the Explosive Atmosphere
  • Ex Classification of explosive Plant according ATEX
  • ATEX 137, about minimum safety requirement of work place in the Explosive Atmosphere (Explosion Protection Documentation)
  • Preparing Explosion Protection Documentation of a Plant and/or Factory
  • HAZARD and Risk analysis of work place in the Explosive Atmosphere (part of the Explosion Protection Documentation)

1.3 Process Safety and HAZOP/SIL study based on IEC EN 61508 and IEC EN 61511

  • Hazard and Risk Analysis: HAZOP
  • Allocation of safety function to protection layers
  • LOPA study and SIL calculation, target SIL, target risk reduction
  • Safety Requirements Specification (SRS) for SIS 
  • Validation of the SIS
  • HAZOP Study of dangerous process
  • HAZOP Study of big machines and equipments (compressors, turbines, fire furnace, burners etc.)
  • SIL calculation of SIF loops and system in a Plant
  • Company Safety Manuals and Safety Policy 
  • Company Safety Application Guides
  • Company Safety Plan
  • Basic Engineering for SIS system
  • Supervision and evaluating of existing ESD systems based on EN IEC 61508 and IEC 61511 standards and SIL classification
  • Preparing study connecting to Ex and Safety Systems based on ATEX, EN IEC 61508 and EN IEC 61511 Standards

Please contact us if you have any question.



The SIL4s company provide the following services for our customers: technical consulting, education about the field of process automation and products automation.:

  • ATEX
  • Safety based on the IEC EN 61508 and IEC EN 61511 / IEC 61511 standards
    • HAZOP
    • SIL - LOPA
    • SRS
    • Validation
  • 8200 Veszprém, Pajta u. 14.

  • +36 88 424 075

  • +36 88 425 601