SLIP-ON FLANGES

HIGHEST DEMANDS ON QUALITY AND TIGHTNESS

Gebhardt –Stahl slip-on duct connections enable the fast, cost-effective and tight connection of rectangular air ducts. Almost any size and sealing class is possible. Comprising of slip-on duct flanges of different sizes and a variety of different corners, our 4-bolt connection systems allow for the appropriate connecting frame to be produced for every requirement (duct size, volume flow, pressure ratios, air tightness). Flanges and corners are also available made of stainless steel (AISI 304 or AISI 316) or aluminium.

Of course, our air duct profiles are also available with injected sealing compound. The sealing compounds Gebhardt-Butyl and Gebhardt-GEL meet the hygiene requirements for use in HVAC systems in accordance with VDI 6022. These flanges are suitable for sealing class C or D (Premium-Flange) without additional sealing measures along the longitudinal edge of the flange.

Saving costs

No additional sealing measures and sealing compound necessary on the flange

Time saving

Due to the high adhesive strength of the butyl, every 2nd welding spot can be saved

Energy saving

High tightness = energy saving

PREMIUM FLANGE

Gebhardt-Stahl Premium-Flange – 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 20, Premium 30 and Premium 40 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-Flanges 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 meets the requirements of DIN EN ISO 846, is solvent-free, silicone-free and permanently elastic.

P-FLANGE

The Gebhardt-Stahl P-Flange system has been known as a proven system for increased seal requirements for many years. Due to its unique shape, the P-Flange clearly stands out from other flanges available on the market.

The 30 ° double roll-forming provides the flanges with excellent stability. Always on stock in sizes 20mm, 30mm and 40mm and available with or without injected Butyl-sealant.

P-Flanges with injected Butyl-sealant are suitable for sealing class C (DIN EN 1507) without further sealing measures along the longitudinal edge of the flange. (TÜV-Nord certified)

The injected Butyl-sealant meets the requirements of VDI 6022, is solvent-free, silicone-free and permanently elastic.

S-FLANGE

The "S" series is the alternative to the “P" series. The multi-chamber design of these duct flanges ensures excellent stability and easy assembly.

S-Flanges are also available with injected sealing compound: S20 and S30 with injected Gebhardt-GEL, S40 with injected Butyl-sealant. Both sealants are suitable for use in air-conditioning systems in accordance with VDI 6022.

L-FLANGE

  • Solide flange for simple ducts
  • Manufactured with double bead

ISO-PROFILE

  • Profile flanges for rectangular ducts
  • For air ducts with internal insulation
  • Avoids temperature losses and noise development in the air duct system

Gebhardt ISO-PVC

  • PVC profiles for internal insulation
  • The PVC profile is suitable for both the S20 ISO and the S30 ISO
  • Prevents the formation of thermal bridges

OUR EXPERTS FOR HVAC COMPONENTS

Our focus on continuous development has allowed us to grow over the past decades from a supplier of ventilation components to a leading company in the field of air duct profiles and a full-range supplier in the field of ventilation accessories.

In the course of this development, however, one thing has always been in the foreground - the pursuit of professional, high-quality and individual solutions for you, our customers and partners.

SUITABLE CORNERS FOR EVERY FLANGE

The corners are the second indispensable element for producing the connecting frames for rectangular ductwork. Only optimum interplay between flange and corner allows for the best possible results regarding tightness, stability and ease of assembly.The Gebhardt-Stahl P, S and D corners do this exactly and combine rational processing with stability and tightness. This is where small details make a big difference - from holes for fixing or aligning, burr free production and much more. Every detail serves to achieve maximum stability and a tight fit.Due to the better handling, the use of ring wrenches or socket wrenches is recommended for screwing the duct parts instead of fork wrenches.

The following screw sizes are suitable for the screw connection of the ductwork: M8 for 20 flanges, M12 for 30 and 40 flanges.

In order to provide maximum flexibility, the corners are available in various designs - e.g. with short leg, with long leg as well as a corners with notch for assembly without punch press. Decide for yourself, which corner fits best your way of working and your project.

  • P20/3K
  • Art. no.: 302010020
  • Clearance 32 mm
  • Short leg 63 mm
  • Suitable for flange systems "Premium 20", "P20" & "S20"
  • P20/3
  • Art. no.: 302010010
  • Clearance 32 mm
  • Standard leg 73 mm
  • Suitable for flange systems "Premium 20", "P20" & "S20"
  • SL20/3LH
  • Art. no.: 302220025
  • Clearance 32 mm
  • With notch, no punching required
  • Suitable for flange systems "Premium 20", "P20" & "S20"
  • SL 30/3
  • Art. no.: 302070010
  • Clearance 32 mm
  • Standard leg 103 mm
  • Suitable for flange systems "Premium 30", "P30" & "S30"
  • S 30/3H
  • Art. no.: 302550519
  • Clearance 32 mm
  • With notch, no punching required
  • Suitable for flange systems "Premium 30", "P30" & "S30"
  • P 40/V
  • Art. no.: 302080011
  • Clearance 32 mm
  • Standard leg 123 mm
  • Suitable for flange systems "Premium 40", "P40" & "S40"