january 2023
december 2022
november 2022
october 2022
september 2022
august 2022
july 2022
june 2022
may 2022
april 2022
march 2022
february 2022
december 2021
november 2021
october 2021
september 2021
august 2021
july 2021
april 2021
march 2021
february 2021
january 2021
december 2020
november 2020
october 2020
september 2020
august 2020
july 2020
june 2020
may 2020
april 2020
march 2020
february 2020
january 2020
december 2019
october 2019
august 2019
may 2019
march 2019
february 2019
january 2019
december 2018
november 2018
october 2018
september 2018
august 2018
july 2018
april 2018
march 2018
february 2018
january 2018
december 2017
november 2017
october 2017
september 2017
august 2017
july 2017
june 2017
may 2017
april 2017
march 2017
february 2017
january 2017
december 2016
november 2016
october 2016
september 2016
august 2016
july 2016
june 2016
may 2016
april 2016
march 2016
february 2016
january 2016
december 2015
november 2015
october 2015
september 2015
august 2015
july 2015
june 2015
may 2015
april 2015
march 2015
february 2015
january 2015
december 2014
november 2014
october 2014
september 2014
august 2014
july 2014
june 2014
may 2014
april 2014
march 2014
february 2014
january 2014
december 2013
november 2013
october 2013
september 2013
august 2013
july 2013
june 2013
may 2013
april 2013
march 2013
february 2013
january 2013
april 2011

Let's not forget the air relief valve in our installations

Air relief valve combined with the automatic check valve for easy maintenance

Let's not forget the air vent valve in our systems

The air vent valve is combined with the automatic check valve for easy maintenance

The noise of the systems can be a non-negligible problem inside homes. This phenomenon is mainly due to the presence of air bubbles which, circulating together with the heat transfer fluid characteristic of the system considered, generate a series of more or less serious problems. The main problems are:
- Noise: as mentioned, it is a significant factor in homes.
- Cavitation: central problem in fluid vehicle systems.
- Corrosion: aesthetic but, above all, structural problem that can lead to failure of the system.

It is therefore essential to find an effective solution to these problems.
For a long time it has been identified in the installation of a fundamental component and with a not too complex operation: the air vent valves. These devices, which from the first manual models have evolved to a degree of complete automation, allow the elimination of the air present inside the pipes, preventing the problems mentioned above.

Positioning and adjustments for the air vent valves

The air vent valves are generally placed in the highest areas of the system, so as to be able to maximize the effectiveness of these devices. In fact, they must be placed in calm areas, where the micro-bubbles of air can concentrate and separate from the fluid that carries them.
The use of these components is not the only adjustment that allows us to reduce the problems that air bubbles can generate in the system:
- Being careful in filling the system: a point that seems trivial but prevention is in these cases the best way to avoid problems already at the beginning.
- Use of deaerators: preventive devices that allow, even in this case, to prevent the problem at the root.
- Attention in the design: avoiding pipes with counter slopes and accumulation areas can help not to create problems and damage to the system.

The use of the automatic check valve

The check valves are complementary elements to the air vent valves because they allow their replacement and maintenance effectively and with a minimum loss of the fluid carried by the system. In addition, they also have an important function in terms of safety, blocking the system if anomalies occur in the operation of the system.
The check valves in the Gnali Bocia catalog are composed of:
- Gasket: made of "anti-sticking" synthetic rubber
- A guide rod: made of brass.
- A ferrule: also made of brass.

These components constitute a patented "anti-drip" system that has been designed in such a way as to allow the intervention of the safety device only in the event of strong expansion of the fluid present inside the pipes, avoiding unpleasant dripping and malfunctions.


See also
27/03/2022 Air vent valves even for boilers Automatic air vent valves for removing the gases that accumulate in systems and which can block them

27/01/2021 The importance of air vent valves in radiators Everything you need to know about radiators and air vents

27/06/2016 Air vent valves and internal balance Air vent valves work thanks to an internal floater regulating its balance.

27/06/2017 You don't need an operator, all you need are some air vent valves Using air vent valves to stop air and gas from accumulating in your system is important for optimal system performance

27/01/2018 Air vent valve controlled by a float With a float system the air vent valve eliminates the gas accumulations in the systems

I contenuti di questo sito non hanno carattere di periodicità e non rappresentano 'prodotto editoriale'.