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Ing. Vojtěch Dědic
is available from 7 00 to 18 00

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+420 565 777 111
Unique System of silent sewage pipes and fittings dB Ultra System is a high-quality product from Polypropylene containing a large amount of mineral filler. This material lends waste pipes and fittings dB System Ultra excellent mechanical and acoustic properties which significantly reduce the intensity of noise penetrating through the pipe wall to the surroundings. Ultra dB System is thus predestined for all areas of civil engineering (family and apartment houses, industrial, cultural and sports facilities, hospitals, hotels, etc.)..
Ultra dB
  • 100% recklovatelné
  • Hluk 24dB
  • Odolnost do 90°C


The unique system of silent sewage pipes and fittings of dB Ultra is a quality product from polypropylene with a high content of mineral filler. This gives the Ultra dB sewage pipes and fittings excellent mechanic and acoustic properties, which significantly reduce the level of noise released from within the pipe into surrounding areas.

Ultra dB System can prevent noise

The unique system of silent sewage pipes and fittings dB Ultra System is able to effectively dampen noise already in place from its very beginning - inside the pipe and in addition, to prevent it from spreading further through the pipe wall. The tubes are made of two layers - the inner and outer white blue. The transition from one phase to another leads to noise reduction. Pipes and fittings comprise a mineral filler, which reduces the transmission of noise.

Do not give the noise a chance - teach water to whisper

Given the silence – thick-wall sewage pipes and fittings dB Ultra System can achieve noise levels approaching the threshold of human hearing perception. When tested significantly lower values were achieved than those required by DIN 4109 - Standard, specifying the noise conditions in areas protected from noise. The measured value of 24 db (A) at standardized assembly lines and speed of the water 4l / s was even lower than the requirement of the stricter German VDI 4100 standard for 25 dB (A) .

Strength and durability

Thick-wall pipes and fittings dB Ultra System are available in dimensions DN 50 - 160. High-quality material processing, surface treatment and packaging quality guarantee to hold up under extreme conditions with the most demanding customers.

Guarantee of Quality

Plant laboratory testing and stable in-process control during the manufacturing process guarantee a constant and high quality.

Living Culture

In connection with the increasing demands on hygiene in the built environment, to which noise protection is undoubtedly one, they are designed and manufactured products that comply with strict ecological and economic criteria. Ultra dB System thanks to its properties fully meets these criteria and use in the construction or reconstruction leads clearly to a higher standard of living, and thus to increase in the value of the property.

Maximal operating temperatures of pipes, adapting pipes and sealing

constant short-term
90°C 100°C

Sealing Area of application- temperatures
SBR (at the producer /within the range of Work) cca. -50°C up to +100°C
EPDM cca. -50°C up to +150°C
NBR (can be ordered separately) cca. -30°C up to +100°C

SBR Improved abrasion resistance and age resistance, good resistance against operating liquids
EPDM Excellent fastness to abrasion, ageing and fastness to most of operating liquids
NBR Versatile material. Sealing for contact with mineral oil or fuels. Poor resistance against ozone and weather resistance
Skolan dB (DN 56 - DN 200) according to the standard DIN 4102 - B2 a according to the construction supervision certificate Z-42.1-217

We can recommend KG 2000 Polypropylene®, or HT-System (PP) ® with sealing rings made of NBR as the case may be.

Skolan dB DIN 4102, B 2

The sealing of systems BL, DD and Euro L Spezial are resistant against water with maximal volume of chlorine 0.6 mg/l.

See the Test record of MPA Darmstadt „K 05 1497" of 11th November 2005 (the pipes DN 50 were tested).

No, it cannot. 
Among other things, this provision serves for elimination of the backwater formation and formation of retained amount inside the system.

These details can be found in the assembly instructions of HT-System (PP)® - Article 5 and assembly instructions of Skolan dB – Article 7.

It is necessary to install a felt bag (or other materials commonly available in the network of shops) onto the Skolan dB pipe placed (the pipe for rain water). In case of the rain water piping only the upper floors are mostly insulated in practice. Basically, the Skolan dB pipe has a high coefficient of insulation. Formation of the condensing water from dew formation does not occur at the plastic pipes with reinforced wall compared to conventional cast-iron or steel pipes. For that reason the above-described insulation is sufficient.

The pipes with slide-in sleeves / couplings are usually placed in such manner that the sharp end is in direction of flowing. The sharp end is sliding into the sleeve / coupling.

The quote from Manual of plastic pipes (4th issue, paragraph 3.4.4 Construction of the sewage water channels and piping, page 463)

Thus the piping placement in direction of flowing is clearly defined.

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