Description
Gebhardt-Stahl Premium-Flange 20 D – the result of consistent further development of our existing flange systems. We have created a unique slip-on flange system with a clinched joint and a double-beat.

The Premium flanges with injected Butyl-sealant fulfil the highest requirements with regard to tightness and easily achieve sealing class D in accordance with DIN EN 1507 (TÜV-Nord certified).

In addition, our Premium-Flange have another special feature: the torsional rigidity of these flanges is 20 times higher, compared with our conventional slip-on flange. Also, as a result of the clinched joint, an extremely rigid corner chamber is formed, thus the flanges and corners form a rigid unit after being plugged together. The handling and assembly characteristics of the flange frames are positively influenced by the increased stiffness.

The injected Butyl-sealant of our Premium-Flange 40 D meets the requirements of DIN EN ISO 846, is solvent-free, silicone-free and permanently elastic.
Material: Galvanized
Approvals: ISO 846
Material thickness: 1 mm
Flange: 40
Flange system: Premium-Flange
Tested to: DW/144 - J4, DW/144 - J5
Length: 5000 mm
Sealing compound: Butyl
Integrated sealant: Yes
Suitable for powder coating: Yes

Frequently asked questions

For which air tightness class according to DW 144 is the flange suitable?
TÜV-Nord has confirmed that our premium flange with injected butyl sealing compound meets the requirements of tightness class D according to DW 144 (Specification for Sheet Metal Ductwork/1998).
For which air tightness class according to EN 1507:2006 / EN 16798:3 is the profile suitable?
Our Premium flange with injected butyl sealing compound is suitable for tightness class D according to DIN EN 1507:2006 (TÜV-Nord certified) or ATC 2 according to DIN EN 16798:3.
Is the flange applicable in accordance with ISO 846?
Yes, the sealant fulfils the requirements according to ISO 846 - A, C. The sealing compound is classified as very well disinfectable and fulfils the hygienic requirements for use in RLT systems according to VDI 6022, Sheet 1, Section 3.5.
Is the injected butyl sealant suitable for powder coating?
Yes, the Gebhardt-Butyl sealant injected into our "Premium" flange is suitable for powder coating.

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