Vaillant mounting clamps Ø 160 mm (5 pieces)

Product detailed description

Vaillant fixing clamps Ø 160 mm – pack of 5

Fixing (anchoring) clamps are used for continuous support and stabilisation of the pipework of the Vaillant Ø 110/160 mm flue system on longer horizontal and vertical sections of the run. The pack contains 5 pieces, which, at the recommended anchoring spacing (usually every 1 – 1.5 m according to the installation manual), is sufficient to stabilise a typical section of the run in a plant room, shaft, or along a wall. The clamp is fixed to the building structure (wall, ceiling, steel bracket) and the flue pipe passes freely through it, while the clamp prevents sagging under its own weight as well as excessive stress on the bayonet joints in the direction perpendicular to the pipe axis.

Without a sufficient number of supports, longer horizontal sections (especially when combining several 1.0 m and 2.0 m extensions) would gradually stress the joints through sagging, which can lead to leaks in the system over time. Regular anchoring with clamps is therefore a standard part of every larger installation of this system.

Summary of technical parameters

• Part type: Fixing (anchoring) clamp
• Diameter: Ø 160 mm (outer diameter of the 110/160 mm system)
• Number of pieces in pack: 5
• Material: Galvanised steel / plastic depending on version
• Recommended anchoring spacing: approx. 1 – 1.5 m
• Intended use: Ø 110/160 mm system – ecoTEC plus, ecoCRAFT exclusiv, ecoVIT exclusiv
• Country of origin: Germany / EU
• Brand: Vaillant
• Warranty: 24 months

Vaillant Ø 110/160 mm flue gas discharge system

The pipe system with a diameter of Ø 110/160 mm belongs to the family of concentric (coaxial) Vaillant flue systems designed for large-capacity gas condensing boilers with a higher rated output – typically the ecoTEC plus VU 806/5-5, 1006/5-5 and 1206/5-5 range (output range approx. 80 – 120 kW), the modular ecoCRAFT exclusiv and ecoVIT exclusiv assemblies, as well as cascade connections of several boilers to a common flue gas manifold. The inner pipe, through which the flue gases flow, is made of durable polypropylene (PP) with high temperature and chemical resistance to condensate (condensate resistance class W according to EN 14471), while the outer shell supplying combustion air is made of UV-stabilised plastic or aluminium depending on the specific part. The system is certified for temperature class T120, pressure class P1 (positive pressure system, suitable for condensing boilers) and corrosion class 1, which corresponds to the normal operating range of flue gases from condensing boilers (low-temperature flue gases, acidic condensates).

The Ø 110/160 mm system is installed exclusively from original Vaillant parts – individual components (extensions, elbows, inspection pieces, roof terminals and fixing elements) are combined together into an assembly exactly according to the layout of the specific boiler room or plant room. All joints are sealed with a silicone seal with a locking (bayonet) system, which guarantees gas tightness even with longer pipe lengths and allows for easy installation and dismantling without the need for gluing or welding.

Comparison with other diameters of Vaillant flue systems

Vaillant offers concentric flue systems in several diameters depending on boiler output – the smallest common diameter, Ø 60/100 mm, is used for most wall-mounted condensing boilers for houses and flats (ecoTEC pro/plus range up to approx. 35 – 65 kW), while the Ø 80/125 mm diameter is used for boilers with higher output or for longer runs where a lower pressure loss is required. The Ø 110/160 mm diameter, to which this part also belongs, is intended for the highest common output segment (ecoTEC plus 806/5-5 – 1206/5-5, ecoCRAFT exclusiv, ecoVIT exclusiv) and cascade assemblies, where a substantially larger volume of flue gases needs to be discharged. Parts of different diameters are not interchangeable with each other – it is therefore always necessary to verify the exact diameter of the system on your boiler or in the project documentation before ordering.

Compatibility

The Ø 160 mm clamps correspond to the outer diameter of the Ø 110/160 mm concentric system and are compatible with all parts of this range regardless of the specific boiler model – higher-output ecoTEC plus range, ecoCRAFT exclusiv, ecoVIT exclusiv, as well as cascade assemblies. For other flue system diameters (e.g. Ø 60/100 mm or Ø 80/125 mm), a corresponding smaller clamp size from the relevant accessory range must be used.

Typical usage scenarios

Clamps are always ordered together with extensions and elbows when installing a new run, so that correct and safe stabilisation of the pipework is ensured along its entire length from the outset. A typical boiler room with a run length of 4 – 6 m will need one to two packs of 5 pieces at the recommended spacing, depending on the number of direction changes and whether part of the run passes through masonry (where anchoring is provided by other elements, such as wall sleeves).

How many clamps to order and at what spacing

When planning the number of clamps, base your calculation on the total length of the run and the recommended anchoring spacing of approx. 1 – 1.5 m – for a run of, for example, 6 m, you will need approximately 4 – 6 pieces, i.e. one to two packs of 5 pcs. For runs with increased wind load (longer outdoor sections) or for vertical branches carrying greater weight, we recommend using the lower end of the specified spacing range.

Installation and use

Recommended procedure for installing fixing clamps:

• the clamp is first anchored to the building structure (wall, ceiling, bracket) at the point where the pipe is to pass through,
• the flue pipe is threaded through the open or dismountable clamp, and the clamp is then closed/tightened so that the pipe has slight free movement within it (to compensate for thermal expansion), while still being sufficiently stabilised against sagging,
• on horizontal sections, a clamp spacing of approximately 1 – 1.5 m is generally recommended, while on vertical sections the spacing depends on the weight and length of the specific branch of the run,
• it is not recommended to tighten the clamp excessively directly onto the pipe shell in a way that would prevent slight expansion movement due to temperature changes during boiler operation.

Safety warnings

Installation and connection of the flue gas discharge system of a condensing boiler must only be carried out by an authorised and trained installation company with professional competence in gas appliances. An incorrectly assembled or leaking flue gas run can lead to the leakage of flue gases (including carbon monoxide) into living spaces, which poses a serious health risk. Use only original Vaillant parts of the corresponding diameter and certification – combining with parts from other manufacturers or of other diameters is not permitted and is contrary to the CE certification conditions of the entire assembly as well as the boiler warranty. After any intervention in the run (part replacement, service, inspection), a tightness check must be carried out before putting the boiler back into operation.

Maintenance and care

We recommend checking the flue gas discharge system at least once a year during regular boiler servicing – in particular the tightness of the joints, the free flow of condensate drainage (if part of the assembly) and the mechanical fixing along the entire run. It is advisable to visually inspect the outdoor plastic parts (roof terminals, wall sleeves) after the winter season for possible mechanical damage caused by ice or wind. During normal operation, the inside of the pipes does not become clogged with deposits as classic solid-fuel chimneys do, but the inspection elements included in the assembly (inspection elbows, inspection pieces, T-pieces) are there precisely so that a service technician can easily look inside the pipe during an inspection and clean it if necessary without having to dismantle the entire run.

For boilers with a longer flue run, we recommend keeping a simple service record of the date of the last tightness check and the condition of the inspection openings – this will make it easier to plan further chimney sweep inspections and provide an overview in the event of a warranty claim or property sale.

Why buy this part at Atria.sk

We offer exclusively original Vaillant parts with 100% compatibility with flue systems of this brand – no universal replacements of dubious quality that could jeopardise the gas tightness of the entire assembly or void the boiler warranty. Goods are usually in stock or quickly available from the supplier, so the completion of a boiler room or a service intervention is not delayed due to one missing part. If you are unsure which exact part you need for your assembly, we will be happy to advise you by phone or e-mail – just provide the boiler model and the length of the flue run you need to cover.

We normally process orders within one business day and dispatch items in stock immediately. If you are not sure which exact part your project requires (for example, when combining several lengths and elbows into one run), we will be happy to help you choose the correct assembly before ordering – just send us a floor plan or a photo of the installation location and information about the boiler model.

Frequently Asked Questions