BG-FLEX SIGMA channels

leak-proof grate unit for
parking decks and more.

This high-quality and individual drainage system can be adapted to suit your needs. Practically any height, width and load capacity are possible. Stainless steel gratings up to class C 250 are available as covers.

Areas of application:

Car parks, parking areas, food processing sites, chemical plants, breweries, dairies, supermarkets, catering, hospitals, etc.

The BG-SIGMA drainage channels are made from 1.4301 or higher quality stainless steel and are used to conduct water from the floor area into a waste water collecting system. The specially developed flange connector ensures absolutely leak-proof laying of the channel run.

  • 1.4301 (V2A) stainless steel mesh grating
  • Mesh 30/10 or 30/30 mm
  • load class B 125 or C 250
  • optional bolting upon demand
  • height-adjustable elevationrack  as a complete set
Liquid-tight joints
  • screw-fastened flange
  • seal made from NBR
  • complete with stainless steel M6 bolting
Perforated, continous flange plate
  • durable connection of the floor coating to the drainage channels
Channel body
  • made from 1.4301 or higher quality stainless steel
  • nominal size: 150 mm
  • visible width: 208 mm
  • element length: 4000 mm (adjustable to the line length)
  • material thickness: 1.5 mm
Sump pit frame
  • as a connecting element
  • also for T, corner and cross connections
  • as stacking frame for a catch basin/sump pit constructed on site
Front/end plate

– tightly welded (incl. perforated flange plate)
– tight closure of channel run

Sump pit well
  • as a connecting element
  • also for T, corner and cross connections
  • can be placed anywhere in the channel run
  • with leak-proof, welded stainless steel well
  • as a catch basin or retention basin
Anchor bar
  • for permanent fixing of the channel body in the adjacent floor structure
Outlet elements
  • outlet nozzle with diameter of choice
  • can be placed individually in the channel run
  • outlet as a supply line, e.g. for an oil separator
Request a quote
BG-Graspointner is an international leader in sustainable drainage systems. Contact us to get a quote for your LEED stormwater management and surface water residential projects.
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