What is a relief valve?

mandag den 20. juli 2020

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Suppose you are wondering what a relief valve is. In that case, the first thing you should know is that it refers to a device-specific to a particular installation, which has the primary function of protecting it from the possibility of excess pressure.

Also, to know what a relief valve is, it is relevant to mention that its application covers many areas, from industrial to commercial and domestic.

How a relief valve works 
As we mentioned, given the risk posed by a pressure rise in a given installation, the relief valve is presented as the ideal option for the protection of said installation, in general, and of each of the parts that compose it, in particular.

Depending on each installation's characteristics, the relief valve will be assigned a specific pressure value, which is the maximum that is tolerated without damage.

In a normal state, the relief valve generally remains closed. When, due to a particular situation, the pressure value is exceeded, it opens, allowing the content to flow in such a way that said pressure is regulated.
Relief valves in the industrial sector 
In the case of the development of industrial activities, relief valves acquire great relevance, according to the larger dimensions of the equipment in the industry.

As these are facilities and equipment that are more demanding than those in the domestic and commercial spheres, either due to size or number of working hours, prevention measures must be sharpened, given that the possibilities of abnormal increases in pressure are higher.

Structure and characteristics 
When thinking about installing the relief valve, it is necessary to consider that it has different characteristics that make it possible to adapt it to different circumstances.

Although they may vary slightly in shape and size according to the uses, all models of relief valves have a standard structure and are easy to handle and place.

At a superficial level, on the one hand, they have an outlet through which the content of the installation flows if its opening is necessary due to a rise in pressure.

Then, the body of a relief valve has an opening through which its connection to the installation is made. Also, it is through this where the content in question comes in..

Finally, in some cases, it is possible to find a system that enables manual operation at one end of the safety or relief valve. Through this, the valve's opening is achieved on those occasions when it is necessary to do so.

To take into account before the installation.
When asked how to install a relief valve, it is also essential to consider that it is located in a strategically designed place that allows an immediate solution to a possible rise pressure in the equipment.

Said strategic planning must consider, at the same time, the space required to act typical of the industrial field, such as the need to clean the valve itself and other components of the system.

Moreover, depending on the type of installation in which it must be installed, it is possible to find relief valves that vary concerning their reference pressure. This same is measured in bars, the term with which the units of pressure are known.

The reference pressure of a relief valve is essential data when considering the choice of this device; this is since, in the event of excess pressure in a specific installation, it indicates the opening capacity of the valve through which the fluid yields, thus avoiding damage to the system.

Some of the damage that can be generated is related to excess pressure. For example, suppose an installation works heating a particular fluid. In that case, when doing so, it increases its pressure, and the condition may occur since it exceeds the limit of what the system components support.