Types of pipes used in hydraulic installation
There are several types of pipes used in hydraulic installation, as they vary according to the type of installation: cold water, hot water, sewage, storage or rainwater networks.
To choose the correct tube, the type of material that will pass through it must be considered, understanding the variation in fluid flow, temperature, etc.
Among the most recommended tubes are:
- PVC pipes: PVC pipes and fittings are the most common in residential installations and are used in cold water installation. They have a working temperature of 20ºC and are divided into weldable and threadable PVC types;
- CPVC pipes: are materials of high mechanical resistance, used for hot and cold water installations, as they withstand temperatures from 70ºC to 80ºC;
- PEX tube: PEX tube is a type of specific hose used to connect a cold water or hot water distribution module, with a working temperature of 70ºC. As it is a tube for metallic connections of the sliding type, it is the most used option in walls with a Drywall system;
- PPR tube: these are tubes suitable for hot water and do not require thermal insulation. They withstand high temperatures, from 70°C to 95°C. The fusion of PPR tubes and connections is done by thermofusion (260ºC), forming a single pipe and preventing leaks;
- PVC for sewage network: these are specific PVC pipes for the sewage network, with an adequate diameter and strength for this flow. It is divided into two types, which are the normal series (white tube) and reinforced (light gray tube).
How to do hydraulic installation? Step by step!
Each type of hydraulic installation in a building requires a specific step-by-step. But here we have gathered some of the main processes of this phase in one work so that you can learn more about the subject. Check out:
Water and sewage connection:
Before any step, it is necessary to have the hydraulic project done by an expert professional.
With this project, the starting point is to carry out the water connection in accordance with the specifications of the water concessionaire in your city and, later, start to start installing the sewage network.
Installation of sewage and rainwater pipes:
Considering a construction with a shallow foundation (radier) in low-resistance soils, the next step is to lay the sewage pipes in the soil before the beginning of the concreting phase.
It is essential to check if the dimension and positioning of drains, toilets and other water outlets are exactly in accordance with the hydraulic project.
In other types of foundation, it is possible that this order is different, that the pipe installation step takes place after the wall lifting and before the subfloor phase. It depends on the project.
The installation of rain piping takes place when the work is more advanced, as it is the process that provides for the drainage of rainwater.
In the case of gutters, for example, installation only takes place during the construction of the roof.
Passage of pipes in the slab:
This stage includes the installation of tubes and connections in the slab, before the concreting process.
At this moment, the work is proceeding with the part of the hydraulic project that determines the specifications for the water tank and also for other water outlets from the upper floor, considering houses and buildings.
Positioning of hot and cold water pipes:
In a work with walls already raised, the preparation and positioning of cold and hot water pipes, which are embedded in the masonry structure, takes place.
An experienced professional is important so that the cuts and positions are consistent with the project and water points, avoiding errors in the execution and installation of accessories, such as faucets, toilets, showers, etc.
Installation of the water tank:
The installation of the water tank is a stage of the hydraulic project that normally takes place after installing the roof.
It is one of the most important steps, as it is the process that ensures the correct supply of the house’s water outlets, with the proper flow. Contact us here
You can find out more about the water box types and size suitable for your project in our article about everything you need to know for water box installation.
The tightness test is carried out after all plumbing and valves have been installed and prior to the step in which the openings in the masonry are closed and the coating installed.
It is a test to verify the functioning of the installations and, when finding faults and leaks, the opportunity for repairs before closing the wall.
Equipment and materials needed to carry out hydraulic installation