DN80 PN10 overground hydrant – Secured In Case it Breaks – Type C

  • Type 3100
  • Diameter DN80
  • Working pressure PN10
  • Column: steel, galvanised, stainless or ductile cast iron GJS 420-10
  • Body: grey cast iron GJS 250 or ductile cast iron GJS 500-7
  • Height: 1900mm, 2150mm, 2450mm
  • Temp. max. 40°C – for water

Above ground hydrant DN80 in the version with a single piston lock and protection in case of breakage. The hydrant also has an excellent anti-corrosion coating based on epoxy resin or hot-dip galvanizing. Designed for drawing water for water supply, municipal and fire fighting purposes.


National Hygiene Institute Warsaw.
Scientific and Research Centre for Fire Protection in Józefów near Warsaw.
Certificate of approval
CE certificate


Performance requirements and verifying tests acc. to PN-EN 14384 and PN-EN 1074-6
Flange connection according to PN-EN 1092-2
Maximum closing torque MOT 105 Nm
Kv coefficient min. 160 140
Number of turns until beginning of opening 3
Number of turns for full opening 9
Nominal hydrant capacity 10dm3/s at pressure 0,2 MPa in accordance with PN-B 02863


  • Body and valve chamber made of grey cast iron, grade EN-GJL250, or spheroidal cast iron, grade EN-GJS 500-7, column according to the table, stem made of stainless steel.
  • A possibility of 360° rotation of the upper body after hydrant assembly.
  • Divided column connected by flanges allows quick repair in case of hydrant breakage.
  • Stem pipe protected in case of hydrant breakage from damage.
  • Piston of ductile cast iron GJS 500-7 vulcanised with EPDM rubber of 70° Sh hardness.
  • Stem nut in brass with trapezoidal thread.
  • Spindle (stem) made of stainless steel with cold rolled thread, sealed with at least two o-rings cooperating with a sleeve made of stainless material (plastic or brass).
  • Gaskets made of EPDM rubber.
  • Outlets made of aluminium
  • Hydrant cap covers made of aluminium alloy or cast iron.
  • Closing of the hydrant is executed by a piston cooperating with a guide sleeve.
  • Self-draining follows at the moment of complete closure of the hydrant.
  • Possibility of trenchless replacement of internal elements (“drive”).
  • Full anticorrosive protection inside and outside with epoxy powder paint with coating thickness min. 250µm, resistant to flashover 3 kV and UV radiation.