Access doors for spiral tubes / round ductwork - GRD

Access doors for round ductwork pressed from galvanised steel in a sturdy double-shell design with a flow-optimised inner shell to prevent turbulences.

Two star-shaped hand knobs with embedded metal thread allow to fix the access panels to the duct. A polyethylene foam gasket securely seals the access panels, so they are suitable for sealing class C and D.

Available in sizes from 180x80mm to 500x400mm and for tube diameters from 80mm up to 1800mm.

Each access door delivered in a bag including self-adhesive drilling plate.


Access Door/ Access Panel GRD 18

  • Access Door/ Access Panel GRD 18

    Access Door/ Access Panel GRD 18

    • Dimensions 180x80mm
    • For ø 76mm - 170mm
    • With polyethylene foam gasket
    • PU 50 pcs*
    Gebhardt-Stahl GmbH
Art. no. Type For ᴓ min-stand.-max
308180010 GRD 18-8 76 - 80 - 92
308200010 GRD 18-10 93 - 100 - 114
308210010 GRD 18-12 115 - 125 - 130
308210011 GRD 18-14 131 - 140 - 150
308210015 GRD 18-16 151 - 160 - 170

*Alternative packings upon request.


Access Door/ Access Panel GRD 21

  • Access Door/ Access Panel GRD 21

    Access Door/ Access Panel GRD 21

    • Dimensions 200x100mm
    • For ø 130mm - 360mm
    • With polyethylene foam gasket
    • PU 50 pcs*
    Gebhardt-Stahl GmbH
Art. no. Type For ᴓ min-stand.-max
308220010 GRD 21-14+15 130 - 140/150 - 155
308230010 GRD 21-16+18 156 - 160/180 - 190
308240010 GRD 21-20+22 191 - 200/224 - 240
308250010 GRD 21-25+28 241 - 250/280 - 300
308260010 GRD 21-31+35 301 - 315/355 - 360

*Alternative packings upon request.


Access Door/ Access Panel GRD 32

  • Access Door/ Access Panel GRD 32

    Access Door/ Access Panel GRD 32

    • Dimensions 300x200mm
    • For ø 260mm - 530mm
    • With polyethylene foam gasket
    • PU 25 pcs*
    Gebhardt-Stahl GmbH
Art. no. Type for ᴓ min-stand.-max
308260020 GRD 32-28 260 - 280 - 300
308270010 GRD 32-31 301 - 315 - 340
308280010 GRD 32-35 341 - 355 - 380
308280110 GRD 32-40 381 - 400 - 420
308280120 GRD 32-45 421 - 450 - 470
308280130 GRD 32-50 471 - 500 - 530

*Alternative packings upon request.


Access Door/ Access Panel GRD 43

  • Access Door/ Access Panel GRD 43

    Access Door/ Access Panel GRD 43

    • Dimensions 400x300mm
    • For ø 370mm - 950mm
    • With polyethylene foam gasket
    • PU 10 pcs*
    Gebhardt-Stahl GmbH
Art. no. Type for ᴓ min-stand.-max
308290010 GRD 43-40 370 - 400 - 420
308300010 GRD 43-45 421 - 450 - 470
308310010 GRD 43-50 471 - 500 - 530
308320010 GRD 43-56 531 - 560 - 600
308330010 GRD 43-63 601 - 630 - 670
308340010 GRD 43-71 671 - 710 - 750
308350010 GRD 43-80 751 - 800 - 850
308360010 GRD 43-90 851 - 900 - 950

*Alternative packings upon request.


Access Door/ Access Panel GRD 54

  • Access Door/ Access Panel GRD 54

    Access Door/ Access Panel GRD 54

    • Dimensions 500x400mm
    • For ø 520mm - 1800mm
    • With polyethylene foam gasket
    • PU 6 pcs*
    Gebhardt-Stahl GmbH
Art. no. Type for ᴓ min-stand.-max
308370010 GRD 54-56 520 - 560 - 600
308380010 GRD 54-63 601 - 630 - 670
308390010 GRD 54-71 671 - 710 - 750
308400010 GRD 54-80 751 - 800 - 850
308410010 GRD 54-90 851 - 900 - 950
308420010 GRD 54-100 951 - 1000 - 1060
308430010 GRD 54-112 1061 - 1120 - 1180
308440010 GRD 54-125 1181 - 1250 - 1320
308450010 GRD 54-140 1321 - 1400 - 1500
308460010 GRD 54-160 1501 - 1600 - 1800

*Alternative packings upon request.

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Gebhardt-Stahl GmbH

We have been manufacturing cold-rolled metal sections in Werl for more than 30 years. We’re an innovative medium-sized enterprise and focus on the production of steel reinforcement sections for PVCu windows, HVAC components, steel vineyard stakes and bespoke profiles.

 

Gebhardt-Stahl GmbH

Runtestraße 33
59457 Werl

+49 (0) 29 22 / 97 33 - 0
info@gebhardt-stahl.de

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