Safety unit 889 standard

Groupe de sécurité standard 889

This hydraulic safety unit protects the hot-water generator from the risk of bursting. It allows water to be purged after expansion from heating, avoiding overpressure in the water heater. When placed upstream of the tank, it supplies the tank with cold water.

It performs 5 main functions:

  • Protection against over-pressurisation
  • Drainage
  • Isolation
  • Anti-contamination
  • Discharge

Benefits of the safety units 889 standard

  • More resistant in water that is aggressive or too soft
  • Higher internal flow rate
  • Lower pressure drop
  • More precise valve adjustment
  • Environmental safety: Lighter, manufactured with recyclable materials, compatible with all energy sources
  • New standard NF EN 1487
  • Made in France in an ISO 9001 and ISO 14001 certified factory
  • 5 year guarantee

Applications of the safety units 889 standard

  • 7 bar model, 1/2" or 3/4", vertical supply
  • Nominal pressure 10 bar
  • Maximum temperature: 95°C
  • Maximum power: 1/2": 75 kW - 3/4": 150Kw

Complementary products

Kit includes:
Safety unit 889 ; siphon 887708