Graepel gratings and more for underfoot safety
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Ahead from the beginning. Ahead from the beginning. Graepel gratings and more for underfoot safety Technical Information incl. stock list for designers, planners, architects, builders and others interested in technology

Graepel perforations for the public sector Graepel perforations for the industrial Graepel-Perl formerly Graepel Cone program controllable program controllable formerly Graepel Round S program controllable program controllable program controllable formerly Graepel Round A program controllable formerly Graepel Round Z program controllable program controllable vvi;v i;r ri;r ■ ■ V VV V V VVY*! L L U l l L h L L ■ V V 1‘ V vi ■ v tL formerly Graepel Round B program controllable formerly Graepel Round N08 program controllable The perforations are shown at a scale of 1:5. program...

Special perforations Special perforations with slip resistance (selection) formerly Graepel Round K formerly Graepel Round N12 program controllable formerly Graepel Round Graepel-Stabil Xtrem formerly Graepel Stabil S program controllable formerly Graepel Round F program controllable Graepel-Quattro NEW program controllable Graepel-Lightprofile Special perforations without slip resistance (selection) More Glide perforations on p. 49 program controllable formerly Graepel Round C program controllable

Graepel gratings | Introduction Graepel gratings have the following properties: Graepel gratings primarily provide underfoot safety. They are ideal as coverings for walkways and platforms, stairways, ladder rungs, and  Slip resistance is realized through an upward steps. embossment. Drainage is possible through downward  perforation. The  change between upward and downward impressions creates different surface patterns – hereinafter referred to as “perforations.” Longitudinal stability is created by the C  profile. The possible loads are dependent on material thickness, bend height,...

Basic technical terms 1 Good anti-slip properties, due to gripping surfaces. The anti-slip properties are tested by IFA. Lengths up to 6,000 or 12,000 mm: This permits a wide bearing span and/or utilization as walkway surface, reducing the cost for steel constructions. 2 3 Lump loads: Lump loads act directly on the surface. To allow these concentrated loads to be supported, a joint bearing width (bm) of the grating surface forms in the lengthwise direction, which is related to the width of the grating B and the size of the load surface. The equation is: bm = a2 + 0.625 x B (B = grating...

Load types Preliminary remarks to the tables on the following pages Uniformly distributed load Conversion of the replacement load Fq from the table into a distributed load Q: Graepel gratings are dimensioned for the elastic material sector. Grating dimensions are determined either in consideration of the permissible stress of the material or considering the permissible deflection. The table values always consider the least advantageous value. The permissible deflection of the “Graepel grating” beam is L / 200, where L is the support width. If greater deflections are required, the deflection...

The following table summarizes the materials that we use. Surface treatment We offer the following surface treatments: Steel ■ Hot-dip galvanizing in accordance with DIN EN ISO 1461 in our own galvanizing plant ■ Electroplating in accordance with DIN EN 12329 ■ Liquid painting (colors subject to RAL) ■ Powder coating (colors subject to RAL) Stainless steel ■ Pickling in our own plant ■ Electro-polishing in accordance with ISO 15730 ■ Glass bead spraying Aluminum ■ Pickling in our own plant ■ Anodizing in accordance with DIN 17611 (colors according to customer's specifications)

Tolerances Tolerances for gratings in accordance with RAL-GZ 639 D1-D21: max. 0.005 x L L: +2 mm/ -4 mm B: +2 mm/ -2 mm H: +1.5 mm/ -1.5 mm a: 0.05 x H b: 0.05 x H c: 0.05 x H d: 0.015 x B e: 0.015 x B f: 0.004 x L g: 0.002 x L h: 0.002 x L i: +8 mm/ -0 mm k: +8 mm/ -0 mm tu: min. 10 mm D1-D2 = difference of the measured diagonals

Certifications: DIN EN ISO 9001:2008 Quality management system for the areas of: ■ Manufacture of pressings and stampings ■ Welded construction ■ Hot-dip galvanizing DIN EN ISO 14001:2009 Environmental management system DIN EN ISO 50001 Energy management system RAL-GZ 639 Quality assurance for Graepel gratings; Deutsches Institut fOr GGtesicherung und Kennzeichnung e.V. Inspection report MPA NRW 12 9706 04 DASt Directive 022 Confirmation of the Institut fOr Oberflachentechnik (IfO) that the work of the in-house galvanizing shop complies with the rules of the DAST Directive 022 -...

Graepel perforations for the public sector Overview of Graepel perforations for the public sector

Overview of Graepel perforations for the public sector We have grouped 6 perforations which are especially suitable for public areas – for indoor and outdoor use. The group includes 3 closed and 3 open perforations. The selection criterion is the hole size, which has a maximum diameter of 8 mm - accessible also with high heel shoes. These Graepel gratings can also be used in the industrial sector where smaller hole sizes and consequently a smaller open area are required.  Holes with a maximum diameter of 8 mm  Perforations extend only a few millimeters upwards  Accessible also with finer...

Graepel-Perl (formerly Graepel Cone) Unperforated edge possible for custom versions Application Graepel gratings with Graepel-Perl perforation are especially suitable as covering for surfaces and platforms in public and industrial areas where closed surfaces are required. Especially recommended is the indoor use. This perforation is ideal for places where nothing should drop through and where finer (non-industrial) shoes are worn. This perforation is even suitable for barefoot walking. The stainless steel type is suitable for use in swimming pools. Steps and ladder rungs are also available...

■ Graepel-Perl (formerly Graepel Cone) Graepel gratings Uniformly distributed Replacement load Fq [in kN] for uniformly distributed Concentrated load load load (numerical values apply for single grating) Load Fq [in kN] for concentrated load (numerical values apply for single grating) Support length L [mm] Support length L [mm] Graepel perforations for the public sector 40 40 40 Lump load Maximum possible lump load F [in kN] Lump loaa (numerical values apply for DD 11)