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External double-wall tank in carbon steel

External double-wall tank built according to the UNI EN 12285-2

External double-wall tank built according to the UNI EN 12285-2


serb est doppia camera numak.jpg
                                                                (demonstrative photo of tank)

External double-wall tank in carbon steel S235JR UNI EN 10025, submerged are welding, externally varnished with a layer of anti-rust agent and colour enamel
finish, set at a pressure af 1.5 bar - gap 0.5 bar.
The tank is equipped with:

  • Hatch diam. 640 mm. with cover 745 mm - thickness 12 x 12 with gaskets and 24 bolts 16 x 60 mm provided with: ring with 3" lockable fast coupling, filllimiting valve up to 90% of the tank geometric capacity, 1" 1/2 coupling with relief valve and flame trap, 1" 1/4 suction pipe with non-return valve, externally visible level indicator with internal float protection pipe, 1" flange for inserting the lock system (on demand)
  • 3/4" flange for connecting the approved control unit LAG 14 for leak checking
  • 3/4" flange for venting glycol filling
  • Platform or anti-slip ladder for gaining access to the manhole and handrail (starting from 10.000 l.)
  • Lifting eye bolts
  • Earthing attachment

Enclosed documents:

Tank testing certificate according to Standard EN12285-2
Comparison chart