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


Solutions for all requirements.


Valsir is the only company that can supply a triple layer waste system with a Triplus® “ventilation branch”. This is the ideal solution in high-rise buildings with a high simultaneous use factor of the sanitary appliances.

This innovative waste system guarantees excellent ventilation of the stack and branch connections on each floor thus limiting pressure fluctuations within the system.

This system also allows significant advantages in terms of cost savings thanks to the possibility of creating one soil stack (therefore no separate ventilation pipes are required) with one 110 mm diameter with over double the discharge capacities of primary ventilation systems.

The ideal solution for high rise buildings

One soil stack, no separate ventilation pipes required.

Increase in stack load

in comparison with conventional systems.


Reduction in speed

of effluents.

Excellent ventilation

of the stack and branches of each floor.

Up to 6* connections on one branch fitting

allacciate alla stessa braga.

Up to 45** flats

on connected to the same soil stack.

* The side connections on the Triplus® ventilation branch are made in the factory according to project specifications.

The number of bathrooms depends on their composition

The same diameter is up to 2.2 more performant

Sistema in ventilazione primaria
Sistema in ventilazione parallela
up to 1.4 more performant
Sistema con braghe miscelatrici Valsir
up to 2.2 more performant

System with primary ventilation

System with parallel ventilation

Drainage capacity 40% greater than systems with primary ventilation.

System with ventilation branches

Drainage capacity 120% greater than systems with primary ventilation.


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.

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Silvestro Software

Silvestro is a software program created by Valsir to help planners in the creation of water supply and waste systems. Thanks to its ease of use it allows the Valsir products to be easily adopted in any project.

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