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Understanding the functions of safety valves

Exploring the importance and operation of safety valves in various applications


Understanding the functions of safety valves

Safety valves are crucial components in various closed systems, as they ensure the safety of the system and prevent the accumulation of excessive pressure.

With this article, we at Emiltec will delve deeper into the function of the safety valve, its importance in various applications, and how it works.

What is a safety valve?

Before we begin, it is important to have a clear understanding of the concept of a safety valve. This term refers to a device designed to automatically release excess pressure from a system, thereby preventing catastrophic damage or failures. The importance of the safety valve lies in its ability to maintain pressure within safe limits, ensuring the integrity and longevity of the system.

How does a safety valve work?

The safety valve operates on a simple but effective principle: it maintains a balance between the force exerted by the pressure inside the system and the force exerted by a spring or a weight mechanism. When the pressure exceeds a predetermined limit, the valve opens, allowing the excess fluid to escape and release the pressure. When the pressure returns to a safe level, the valve closes again.

It is crucial that the discharge openings are properly designed so that they can handle sufficiently large outflow streams to prevent further increases in system pressure. The discharge opening must be visible, but must not pose a danger to people observing it.

Components of a safety valve

A typical safety valve is made up of several key components, each playing a crucial role in its operation:

  • Valve body: houses the internal components and provides a passage for the fluid.
  • Valve seat: the valve seat is the sealing surface where the valve closes to prevent fluid flow.
  • Stem: is the moving component that opens and closes the valve seat, allowing or blocking the flow of fluid.
  • Spring or weight mechanism: this component exerts a force on the valve disc, keeping it closed until the pressure exceeds the predetermined limit.
  • Adjustment mechanism: some safety valves are equipped with an adjustment mechanism that allows the user to set the desired pressure at which the valve opens.

The role of safety valves in high-pressure water systems

In systems that work with high-pressure water, safety valves play a fundamental role in maintaining the integrity of the system. Typically, they are installed in areas where the pressure may exceed safety limits, usually near the piston pump to safeguard it in case of overpressure.

Conclusions and Emiltec's role in supplying safety valves

In conclusion, safety valves are vital components that ensure safety and prevent the build-up of excessive pressure.

In this context, we at Emiltec are an international reference point for the supply of safety valves for piston pumps, pressure washers, and high-pressure water systems.

The products in the Emiltec catalog are designed with a focus on robustness, reliability, and precision, crucial elements especially when dealing with high working pressures.

Among the many products for sale, we cannot fail to mention the PA VS310 model. This product is a technologically advanced solution for various industrial applications, mainly professional pressure washers and car-wash systems. This valve can operate with pressures up to 310 bar and flows up to 40 l/min.

For those looking for a safety valve suitable for high pressures, the PA VS80 model is the ideal solution. This valve is made of Aisi 303 stainless steel and can work with pressures up to 400 bar and flows up to 80 l/min.

Are you interested in discovering how Emiltec's solutions can improve the safety and efficiency of your industrial systems? Contact us today for more information!