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Technical terminology and explanations from the field of fire protection

Fire protection as a preventive measure – something everyone is confronted with almost every day. Although this issue should concern everyone, there are many technical terms and abbreviations that are hard to understand for non-technical personnel and layman. Therefore, we have compiled the most important technical terms and designations for you with the respective explanations:

• Alarm valve (in various nominal sizes DN 80, DN 100, DN150, DN 200)
• Response Time Index (RTI)
• Triggering temperature (VdS standard 68° C, 93° C, 141° C, specification approx. 20 K above the normal ambient temperature)
• Operational pressure (max.10 bar)
• Fire risk classification to VdS CEA 4001
  • LH = Light Hazard (e.g. offices)
  • OH = Ordinary Hazard (e.g. mixing sections of production and storage)
  • HHS = High Hazard Storage (e.g. sole storage)
  • HHP = High Hazard Production (e.g. sole manufacturing areas)
  • Effective range (from 72 to 360m²)

• Minimum pressure on the sprinkler (between 0,35 ?2,8 bar)
• Tubular system consisting of:
  • main tubing
  • distribution tubing
  • slab tube (quality to DIN 2440, 2448 or 2458)
• Sprinkler protection area (between 9; 12; 15 and 21m²)
• Water discharge (mm/min)
• Water supply (restricted/inexhaustible)
• Duration (min., 60 min. or 90 min.)