EISEDICHT HOTSchott Tyvek® Heat-Resistant Bellows Pipe Grommets – 150–250 mm, up to 45°

EISEDICHT HOTSchott Tyvek® heat-resistant bellows pipe grommets are designed for airtight sealing of high-temperature pipe penetrations through airtight and windtight building layers, especially where pipes pass through sloped roof constructions.

The HOTSchott system is intended for applications such as flue and exhaust pipe penetrations, where increased temperature resistance is required. The sealing sleeves have been TÜV Süd tested and are specified for temperatures up to 250 °C, allowing sealing directly around heat-conducting pipes.

The FRGD versions feature flexible, height-adjustable bellows sleeves that allow reliable sealing of rising pipes passing through roof slopes up to 45°. The permanently flexible construction accommodates movement around the pipe, while integrated strain relief reduces mechanical loading on the sealed penetration.

Each version uses a self-adhesive and tear-resistant Tyvek® adhesive collar with an extremely strong polyacrylate adhesive. The adhesive collar has a specified temperature resistance from -30 °C to +100 °C.

The products are suitable for indoor and outdoor applications, are UV-resistant and halogen-free, and can be installed from +5 °C. They comply with DIN 4108-7 and DIN 18015-5 and are TÜV tested. The HOTSchott system is also specified for airtightness according to GEG 2020 and for flue gas systems according to DIN 14241-1 and DIN 13216-1.

Available variants:

• FRGD150 – 150-165 mm – HS0072 – 50-80 mm bellows – 350 × 350 mm collar – 4 pcs.

• FRGD180 – 180-200 mm – HS0076 – 30 mm bellows – 400 × 400 mm collar – 4 pcs.

• FRGD230 – 230-250 mm – HS0074 – 30-50 mm bellows – 580 × 580 mm collar – 4 pcs.

Key Features

• EISEDICHT HOTSchott Tyvek® heat-resistant bellows grommets

• For pipe temperatures up to 250 °C

• Suitable for roof slopes up to 45°

• Flexible height-adjustable bellows construction

• Available diameters: 150-165 / 180-200 / 230-250 mm

• Integrated strain relief

• Self-adhesive and tear-resistant Tyvek® collar

• Extremely strong polyacrylate adhesive

• Adhesive collar temperature resistance: -30 °C to +100 °C

• Suitable for indoor and outdoor applications

• UV-resistant

• Halogen-free

• Installation temperature from +5 °C

• According to DIN 4108-7

• According to DIN 18015-5

• HOTSchott system specified according to GEG 2020

• Tested for flue gas systems according to DIN 14241-1 and DIN 13216-1

• TÜV tested

• Manufacturer: Eisedicht

Applications & Usage

The EISEDICHT HOTSchott FRGD bellows grommets are intended for sealing high-temperature pipe penetrations through airtight or windtight layers, including vapour barriers and vapour control membranes.

The adjustable bellows design makes the system particularly suitable for rising pipes through roof slopes up to 45°. Typical applications include flue pipes, exhaust pipes and other heat-conducting technical pipework.

An opening corresponding to the pipe diameter should be created in the airtight or windtight membrane. The correctly sized grommet is then bonded according to the manufacturer's installation instructions.

Advantages / Benefits

• Designed for high-temperature pipe penetrations

• Suitable for pipe temperatures up to 250 °C

• Suitable for roof slopes up to 45°

• Flexible bellows accommodates angled pipe penetrations

• Permanently flexible construction compensates for building movement

• Integrated strain relief

• Large tear-resistant adhesive collars

• Strong polyacrylate adhesive

• Suitable for indoor and outdoor use

• Tool-free installation concept

• TÜV tested

• Multiple sizes for common pipe diameters

Application Industries / Use Cases

• Flue gas systems

• Exhaust pipe penetrations

• Chimney and heating installations

• Sloped roof penetrations

• Airtight construction

• Windtight construction

• Vapour barrier penetrations

• Building envelope construction

• Technical pipe installations

• Renovation