Pressure reducing valves, one of our major specialties

At Valfonta, we take pride in being specialized leaders in the design and manufacturing of a variety of pressure reducing valves. Our expertise has been built and perfected over more than half a century of experience in the industry. We have achieved this unique proficiency through a constant commitment to research and development, allowing us to stay at the forefront in implementing the most advanced materials and component innovation.

Our dedication to achieving excellence goes beyond constant innovation. It is also reflected in the meticulous craftsmanship of our technical experts and our steadfast commitment to customer service. We believe that each valve we produce is not just a product but an efficient and long-lasting solution for our customers’ pressure control needs.

Cómo diseñar una válvula de presión

This comprehensive approach has allowed us to establish ourselves as a benchmark in the valve industry at a national level. However, we don’t stop there. Throughout this time, we have experienced exponential growth, expanding our presence and influence beyond the domestic market.

We remain true to our original mission while evolving and growing to meet the challenges of the future. At Valfonta, we not only manufacture valves; we forge reliable pressure control solutions with the clear objective of driving our industry forward.

In our catalog, we offer different models of pressure reducing valves:

We always carefully study each installation or system, as well as the requests and requirements of each client, until we find the optimal solution and the most suitable valve.

The function of the pressure reducing valve is very clear; it needs to reduce the outlet pressure of the system, regardless of variations in inlet pressure or demand in the line.

Some of our most popular models include:

We can also design custom pressure reducing valves.

Thanks to the experience gained and our exceptional team of professionals, in addition to having an extensive catalog of pressure reducing valves, we are capable of designing and manufacturing fully customized valves according to the requirements of each system. And it’s not just pressure reducing valves, we also produce various types of pressure relief valves and control valves.

Just let us know in detail what you need, and we will manufacture it specifically for you. It’s as simple as that!

Some of our pressure relief valves:


Pressure reducing valves: common symbols for these components

Here are the most common symbols used to identify this type of valves:

válvulas reductoras de presión simbología

>> The symbol commonly used to represent a pressure reducing valve in hydraulic systems is as follows:

It’s a general symbol.

válvulas reductoras de presión simbología

>> The hydraulic symbol for a one-way pressure reducing valve:

válvulas reductoras de presión simbología

>> Symbol of a differential reducing valve between the pressures of 1 and 2.

válvulas reductoras de presión simbología

>> This is the general symbol for a pressure relief valve.

válvulas reductoras de presión simbología

>> Symbol for a pressure relief valve with discharge regulation.

válvulas reductoras de presión simbología

>> Hydraulic symbol of a sequential valve with regulation.

válvulas reductoras de presión simbología

>> Hydraulic symbol of a balanced reducing valve.

This is the general and basic symbolism of pressure reducing valves and their different variants and models. In the field of process engineering, the use of standardized symbolism is essential for effective communication and clear understanding of pipeline systems and the processes being implemented. Pressure reducing valves, which play a crucial role in pressure regulation and control within a system, are no exception.

Generally, in process flow diagrams, a valve is represented by a small circle. However, a pressure reducing valve has specific symbolism to differentiate it from other valves. It is represented by a circle with an arrow inside pointing downwards, symbolizing the pressure reduction. Sometimes, the circle may be notched at an angle, which also indicates a pressure decrease.

instalacion valvula reductora de presion - Valfonta

In some cases, you may also see a pressure reducing valve represented by the letters “PRV” (Pressure Reducing Valve), placed inside or near the circle. This alphanumeric code adds more clarity to the specific function of the valve.

It is important to note that symbolism may vary slightly depending on the specific standards being used, such as ISO, ANSI, or DIN. However, the basic concepts are usually similar and are based on the idea of providing a clear and concise visual representation of the valve’s function.

Contact our commercial department for any questions regarding our pressure reducing valves

If you have any questions or would like one of our specialized technicians to provide you with personalized assistance, you can simply call us at (+34) 93 372 08 88 or send us an email at

You can also fill out the form available on this website, and one of our sales representatives will get in touch with you as soon as possible.