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Product Description

Backflow preventers of this type are suitable for the protection of drinking water systems against back pressure, backflow and back syphonage. They can be used for residential buildings, industrial and commercial purposes within the scope of their specification. Fluids up to and including liquid category 4 to EN 1717 are protected.

Technical Properties

  • DVGW in progress
  • NF in progress
  • WRAS in progress
  • KIWA in progress
  • BELGAQUA in progress
  • VR in progress

Drinking water

Liquid category (EN1717) class 4
DN size 50 mm
Port connection external threads
Port diameter R 1/2 inch
Mounting position horizontal
Minimum inlet pressure 1,5 bar
Max. media temperature 65 oC
Body material leadfree brass
Additional Descriptions
  • LEAD FREE: Pb content of all materials less than 0.1 %
  • Optimal protection of the drinking water supply system
  • Integrated inlet strainer
  • Inlet check valve and discharge valve are combined in one cartridge
  • Low maintenance effort - cartridge insert and outlet check valve are completely replaceable
  • Optimized design prevents water Stagnation in normal operation
  • Compact construction
  • Lead-free material
  • Easy access to all internal components
  • Low pressure loss and high flow rate
  • REACH and RoHS conform
  • ACS certified
  • All materials are KTW approved
  • Approved by TUEV LGA for low noise, Group 1 without limitation
Maximum inlet pressure 10 bar