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Ventilation duct clamp LGS

Clamps - Ventilation duct clamp LGS

The fischer ventilation duct clamp LGS is the ideal fixing solution for ventilation ducts of all types. With the LGS, you can secure spiral pipes to the substrate particularly easily and quickly. The large opening angle enables the easy insertion of the pipeline, whereas the two-screw concept of the LGS allows for optimal adjustment in line with the outer diameter of the pipe. The LGS has holes on both halves of the clamp from a diameter of 450 mm. This enables the doubling of the recommended load with two threaded rods with nuts. The sound insulation insert ensures reliable acoustic decoupling from the structure.

Product Description

  • The large opening angle of the LGS enables a quick and easy installation.
  • The LGS's two screws allow the adjustment to suit the outer pipe diameter.
  • The locking screw with large recess/cross recess head is secured to not get lost during installation.
  • The sound-insulation insert has a form fit and can not fall out during the adjustment of the pipe.
  • The LGS is drilled on both sides of the clamp from 450 mm diameter on. This allows for connection with two screws with nuts or two threaded rods with nuts. Thereby the recommended load of the clamp can be doubled.
  • Material: steel DC01 (material no. 1.330) acc. to DIN EN 10130
  • Zinc plating: electro zinc-plated, 5 - 9 µm
  • Connecting nut: resistance welded domed nut, M8 / M10, SW 13
  • Locking screw: oval head screw with combination recessed head
  • Material sound insulation insert: SBR/EPDM; chlorine-free; silicone-free
  • Sound insulation: for DIN 4109
  • Temperature range: -50 °C to +110 °C
  • Hardness: 45 ± 5° Shore A
  • Fire behaviour: DIN 4102: Class B2

Available Product Variants

2 Product variant (s) found

2 Product variant (s) found



Height H


Width B


Width x thickness clamp band

b x s

Art.-No. 079501

M8 / M10

252 [mm]

280 [mm]

25 x 1.5 [mm]

Art.-No. 079505

M8 / M10

343 [mm]

371 [mm]

25 x 1.5 [mm]

Viewed 2 of 2 variant (s)

Application and Permission

  • Fixing of spiral lock seam pipes
  • Fixing of pipes over 450 mm in diameter with two adjacent threaded rods
  • Sound-insulation insert is held glued from Ø450 mm

Assembly Instruction

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