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Underground fire hydrant

Valves & hydrants

Underground fire hydrants

Specially designed for very congested urban areas, Saint-Gobain PAM underground fire hydrants are discreet and offer a high level of safety. They rigorously comply with standards NF EN 14339, NF S 61211/CN and the CE mark. Regardless of the incline of the pavement, installation is without complication, thanks to an independent casing that is centered and indexed in relation to the hydrant. Any pressure on the casing is completely absorbed by the ground and not the equipment. The integrity and watertightness of the joint with the pipeline are preserved.
These hydrants are designed to last :
  • ductile cast iron casing with a synthetic coating for greater robustness
  • hingeless casing that requires no particular maintenance
  • the hydrant body has an epoxy coating
  • same sealing system as for the pillar fire hydrants: ductile iron check valve encapsulated in EPDM, complete automatic draining
  • operating stem in stainless steel with 13% chrome
The hydrants can remain operational throughout the duration of ongoing work on the pavement by ways of raising the casing to the new pavement level. This can be done without intervention on the hydrant’s connection to the pipeline. Extensions can be screwed onto the Keyser fitting.

Saint-Gobain PAM underground fire hydrants make installation very simple :
  • adjustable flange at the level of the duckfoot bend for easy adjustment
  • integrated lifting rings
  • outlet fitting : 100 mm diameter Keyser
     

Hydrants

  • freeze-proof underground fire hydrant AG DN 100
  • non-freeze-proof underground hydrant DN 100

     

Washing & spraying

  • non-freeze-proof type 423 DN 25 underground hydrant : body & cover in grey cast iron, check valve encapsulated in EPDM, acrylic paint
  • non-freeze-proof type 423 DN 40 underground hydrant : body & cover in grey cast iron, check valve encapsulated in EPDM, acrylic paint
  • freeze-proof 423 AG DN 25 underground hydrant : body & cover in grey cast iron, check valve encapsulated in EPDM
  • freeze-proof AG DN 40 underground fire hydrant
  • freeze-proof AG DN 60 underground fire hydrant
 

Drawing of water

  • fountain pillar : drawing of water for reasons not related to fire protection
  • Neptune standpipe : water distribution in public areas
 

See also

Fire safety by PAM
Equipment for pipeline protection