Reducing noise from wastewater and drainage systems in the home is not only about environmental quality but about quality of life.
Huliot’s Ultra SilentTM and Ultra Silent PlusTM present systems that are so effective and affordable it doesn’t make sense to install anything else in a new construction project.
Huliot’s Ultra SilentTM is an effective non-pressure soundproof wastewater and drainage piping system made of mineral-reinforced polypropylene compound (PP-MD). Available in diameters from 32 mm to 160mm, Ultra SilentTM products comply with all mechanical and measurement requirements (EN 1451-1) and suit above and below ground installation both inside and outside the building structure.
The system fittings are produced from black PP-MD compound and sealed with SBR-NR seals.
All pipes have three layers to provide the highest mechanical performance.
The Ultra SilentTM system advantages
See system presentations and reference projects in the Media section.
For details about the Ultra Silent™ program, see the Ultra Silent section in the e-Catalog (includes technical specifications and logistics information for each assortment).
Noises from wastewater and drainage systems
Every object in motion makes noise when it transmits vibrations – in the form of pressure or negative pressure waves – to the surrounding air. There are two types of noise in drainage and wastewater systems:
The Ultra Silent™ system’s acoustic performance was tested at the Fraunhofer IBP Test Laboratory (Germany) in accordance with DIN 4109 and EN 14366 standards.
The system assembly (illustration below), which was also tested at Fraunhofer, has 110 mm diameter pipes and fittings, and several basic pipe clamps (including, for example, Müpro DAMMGLUST yellow, Bismat 2000).
The table below details the results of the Ultra Silent pipe system’s noise reduction performance at various continuous water flow rates (0.5 l/s, 1.0 l/s, 2.0 l/s, 4.0 l/s). The results represent readings of the sound level taken and measured in the basement test room (UG at the front and rear of the wall, EN ISO/IEC 17025). Airborne sound pressure and the characteristic structure-borne sound levels were measured according DIN EN 14366.
Ultra Silent noise reduction performance
Download all Ultra Silent acoustic performance test reports from the downloads section.
Read more on various aspects of acoustics
See the acoustics chapter.
All materials comply with RoHS directive and are free of halogen and cadmium.
Ultra Silent’s triple layer pipe
Fittings made from black PP-MD for outstanding acoustic insulation.
All products are connected by means of push-fit insertion, with single-lip high-quality SBR-NR seals to guarantee sealing and provide leakproof performance.
Pipe and fittings markings
These details are clearly printed with indelible ink at least once per meter on each pipe:
System materials resist aggressive discharge media in the range of pH 2 to pH 12, according to DIN 8078. For details about chemical resistance:Download the chemical resistance list (PDF)
The chemical resistance list is intended as a general guideline about the chemical resistance of the material and cannot simply be applied to all applications. The specifications in the list are not intended as a guide to determine the possible effects on the reagent. Mechanical behavior may be impaired in cases where tension and the presence of chemicals occur simultaneously (tension-fracture corrosion).
The Ultra Silent system has been tested and certified by the IBS Institute (EN 13501-1:2009) and classified D-s2, d2.Download the IBS classification report (PDF)
The system meets the requirements of EN 4102-2 with fire classification B2, smoke development category Q1 (low smoke development) and drip formation category TR1 (no drip formation). See the SKZ system certificate.
Ring stiffness was tested according to ISO 9969 and reached the following for dimensions Ø32-160:
E-modulus tested according to ISO 178 and reached 2,300-3,000 MPa for Ultra Silent and 2,600-3,200 MPa for Ultra Silent Plus.
Coefficient of elongation was tested and reached the results of 0.09 mm/mK for Ultra Silent™ pipes and 0.05 mm/mK for Ultra Silent Plus™ pipes.
All Ultra Silent™ system’s products are lightweight, making them easy to handle. Both the push-fit ring seal method and the Thread-lock™ with O-ring method install quickly and easily.
Transportation, storage and handling
To facilitate transport and storage, all fittings are packed in cardboard boxes. Pipes are packed in bundles or on pallets. Details about package dimensions, quantities, weight and other logistic information are outlined in the e-Catalog.
In addition to the regular installation instructions for domestic wastewater and drainage systems, there are other important aspects to consider during the installation of acoustic wastewater systems:
Avoid contact between system components and rigid elements such as walls, ceilings, floors to prevent structure-borne noise transmission.
For pipes traversing walls and ceilings, allow at least 30 mm between the pipe and any rigid material.
If the spaces around the pipes traversing walls and floors must be filled, use soft construction materials such as foam or glass fiber only (Figure 1).
For improved hydraulic flow and reduced noise, 87° bends are not recommended to be used for changing flow direction from vertical to horizontal. It is preferable to use two 45° bends, with 250 mm minimum length of connecting pipe between them (Figure 2).
Read additional installation recommendations in the Ultra Silent manual and in the media section.Download the general manual for transportation, storage and installation (including repairs and nonstandard installations).
Huliot develops and produces unique accessories to complete the Ultra Silent™ system range and to provide solutions for most plumbing and acoustic planner’s requirements.Download the product specification and installation manual