If you have not yet registered on the Valsir web site fill in the form with your details and obtain free access to the download area where you will be free to download our price lists and technical brochures. You will also have the possibility of receiving our periodic newsletter: the best way to remain up-to-date on all the latest developments in Valsir.

Forgotten your password?

Valsir S.p.a
Waste and water
supply systems, underfloor heating system
and flush cisterns


The leading push-fit soundproof waste system.


Silere® is a push-fit system composed of pipes, fittings and accessories, industrialized, produced and patented by Valsir, that is capable of guaranteeing the lowest levels of noise on the market today

The pipes and fittings are produced with a mix of polypropylene and mineral fillers that guarantees high mechanical resistance, excellent acoustic performance and high resistance to agents.

Download the documentation

Performance without compromise

Silere® pipes and fittings are made of a patented polypropylene-based mix (PP) and mineral loads (MF) that provide high mechanical characteristics and at low (impact resistance at -20°C) and high temperatures (at a continuous operating temperature as high as 95°C).

The Silere® waste system can transport waste liquids with PH values between 2 and 12, it has a high resistance to the most common chemical agents and is characterised by an extremely smooth surface, such as to prevent the accumulation of deposits inside the waste pipework.


Excellent soundproofing performances

Measured in the Fraunhofer laboratory of Stuttgart, in compliance with EN 14366, equal to 6 dB(A) with a flow rate of 2 l/s (certificate P-BA 223/2006).

Extreme Temperatures

Resistance to intermittent discharges at temperatures as high as 95°C. High impact resistance at extremely harsh temperatures as low as -20°C.

Chemical resistance

High chemical resistance to the substances dissolved in civil and industrial waste systems.

Speed and ease of installation

Without the use of any special tools, thanks to the push-fit jointing method. Also the socket joint doesn’t require the extra use of harmful glues or solvents.

from DN 50 mm to DN 160 mm

Wide range of diameters from DN 50 mm to DN 160 mm.


Wide range of transition fittings for connection to other waste systems such as cast iron, PE, PP, PVC.

Valsir Green Building


The product, its recyclability and the production processes are based on Green Building principles which promote respect for the environment and the conservation of natural resources.


A range that stands out

The range is made up of pipe lengths between 150 mm and 3 m and is characterised by a wide choice of fittings and accessories that allow the most varied system configurations to be created.

From diameters 58 mm and 78 mm for the creation of branches for each floor, to diameters 135 and 160 mm for waste manifolds.

Discover more about Silere range


Excellence in soundproofing performance

When a waste system is in operation, noises originate inside the pipework which vibrates due to the fall of the liquid being discharged.

Most of the noise propagates inside the pipe, however, the vibrations generated are transmitted from the walls of the pipe to the surrounding area, to the pipe anchoring system and consequently to the building structure.

Discover more about Silere soundproofing performance



Solutions for all requirements

Valsir is the only company that can provide a sound insulating waste system with Silere® “ventilation branch”. This is the ideal solution in high-rise buildings where the simultaneous use factor of the sanitary appliances is high.

Discover more about solutions

Push-fit joint: Rapid and easy installation

Silere® ensures practical and rapid installations without the use of glues, electrical appliances or special tools, thanks to the jointing system with push-fit socket.


Discover more

Case history

The performance of the Silere system installed in great buildings all over the world.

Grand Hotel Savoia

Genova (Italy))

Capital Gate

Abu Dhabi (United Arab Emirates)

Dolmabahce Palace

Istanbul (Turkey)

Reyno de Navarra Arena

Pamplona (Spain)

Certified quality

The range has been certified by the strictest certification bodes.



Valsir provides complete support both during the planning phase and on site, thanks to a first-class technical office made up of a team of highly experienced engineers, capable of dealing with the most complex system requirements.

Discover more