NA2, NA3, QNA4 drive-over sumps

Product information

NA type provide access to manholes of an underground tank located in a roadway or under a car park.

They can be easily and quickly mounted on a tank by screwing them with bolts to the coaming.

Available with different corrosion protection systems: polyurethane coated, primer coated or hot-dip galvanised.

Designed and manufactured in such a manner to make it possible to mount many types of cover shafts available on the market.

For use on tanks with coamings of 1400 x 1200 mm and 1200×1200 mm.

Advantages

• Three size variants:
  • NA2 – 1400×1200 mm, h=950 mm with an internal hole of 920×920 mm
  • NA3 – 1400×1200 mm, h=950 mm with an internal hole of 1400×740 mm
  • 1200×1200 mm, h=950 mm with an internal hole of 920×920 mm
• Various coating finishing methods:
  • hot-dip galvanised (NA2, QNA4)
  • polyurethane coated (NA2, QNA4)
  • primer coated (NA2, QNA4 i NA3)
• Shaft covers can be adjusted:
  • Watertight shaft cover with a concrete tie beam:
    • Ø 250 kN (class C) 920 x 920 x 250 mm
    • Ø 250 kN (class C) 1400 x 740 x 250 mm
    • Ø 400kN (WAD III) 920 x 920 x 250 mm
  • Watertight shaft cover with a concrete tie beam
    • Ø 400 kN (WAD III) 920 x 920 x 250 mm

Technical information

• NA2 drive-over sump
  – 1400×1200 mm, h=950 mm with an internal hole of 920×920 mm
• NA3 drive-over sump
  – 1400×1200 mm, h=950 mm with an internal hole of 1400×740 mm
• QNA4 drive-over sump
  – 1200×1200 mm, h=950 mm with an internal hole of 920×920 mm