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Flexible connectors, sound- and expansioncompensting connectors for fans, heaters, air-conditioning equipment an air ducts.

Flexible connectors

Flexible connectors or compensators are essential components in heating, ventilation and air conditioning technology.
They serve both for structure-borne noise decoupling and expansion compensation, especially in applications on fans, heating and air conditioning units and air ducts.

We manufacture to measure and optimally cover the most diverse requirements.
Flexible connectors, sound- and expansioncompensting connectors for fans, heaters, air-conditioning equipment an air ducts.
  • temperature range from -40 °C to +300 °C
  • made of galvanized steel and stainless steel
  • in different tightness classes
  • for use in air conditioning systems according to VDI 6022
  • for fire dampers with strip material according to DIN 4102 B2
  • round flexible connections (flange according to DIN 24154 R2)
  • insulation nozzles for structure-borne sound decoupling
1. Flexible rectangular connectors

Rectangular flexible connectors are often used as a transition between fan and air duct to reduce noise transmission or to compensate for expansion.
Thanks to the circumferential sealing strip on the PVC strip material, no additional tape is required during installation.
Appropriate air hygiene tests were carried out, the tape material complies with DIN EN ISO 846, and the nozzle is suitable for use in HVAC systems according to VDI 6022.

2. Flexible connections around

Round flexible connectors are ideal for round air ducts and also serve to decouple structure-borne noise. They offer high flexibility and are available in various sizes to adapt to different pipe diameters.
Flat flanges according to DIN 24154 series 2, sheet 2 in galvanized version are used here.

3. Insulation nozzle

Insulation ducts are used for decoupling structure-borne noise and to dampen noises that can be caused by airflow. They are often used in hygienic areas and comply with tightness class C according to EN 13180.
The frames are made of aluminium as standard, but can also be made of stainless steel (material 1.4301) as an alternative.

4. Spot welded mesh

Spot-welded mesh is suitable for protecting against the ingress of leaves and small animals into openings of ventilation systems.

5. Welldrahtgitter

Wire mesh screens also prevent leaves and small animals from entering openings of ventilation systems.

Material standards

The materials are classified according to various standards, including:

  • DIN 4102 B1: flame-retardant
  • DIN 4102 B2: normally flammable, which are installed on fire dampers.
  • ATEX: PVC-EX tape, electrically conductive for use in potentially explosive atmospheres.

These different tape materials are offered in various widths, as well as different tightness classes, such as class C according to EN 13180 and tape materials for different temperature ranges from -36°C to +300°C.
The frame material is galvanized steel or stainless steel (1.4301) with a 20 or 30 mm flange and insulation sleeve also available in aluminium.
Thanks to flexible manufacturing, all intermediate dimensions in width and height are available at no extra charge – ideal for individual installation situations.

Tip for our self-assembly kit

With our detailed instructions and the accompanying YouTube video, you’ll be well-equipped to make the product yourself. If you have any questions, please don’t hesitate to contact us.