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Overflow and safety valve

Overflow and safety valve

Safety valves , also known as pressure relief valves , are essential components for preventing the build up of excess pressure in storage tanks, boilers, pipes or other types of equipment.

When pressure levels exceed the safety limits defined by the valve's set pressure, this piece of equipment will open to remove the excess pressure and then automatically close when the pressure has returned to the required level.

Safety valves provide crucial, last resort protection for your installations. They prevent systems from being damaged by excess pressure if there is a problem with their control systems.

Vacuum/pressure relief overflow valves are important safety elements which are designed to efficiently manage sudden and/or regular pressure variations in your networks. These variations can occur due to phenomena such as water hammer or the sudden movements of air pockets in pipes or when valves are closed quickly.

This component releases some of the pressurised fluid so as to regulate the installation's pressure level and return it to the required level.
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Béné Inox's vacuum/pressure relief overflow valves can be used in a wide range of industries such as the chemical, cryogenic, cosmetic and food and beverage industry etc.

They are available in several different materials. The most common of these are stainless steel and brass.

When choosing an overflow valve you need to take into account several factors such as the :

- type of fluid that needs to be evacuated (i.e. water, air, gas or chemical products etc.),
- set pressure: this value must be at least 1.15 times higher than the pressure of the network which you need to regulate,
- temperature scale,
- fluid flow rate,
- sealing: metal/metal, FKM, PTFE or other,
- connection type: BSP or NPT threading, flanges or CLAMP or DIN standard food and beverage industry connectors.

Béné Inox also proposes a range of customised overflow or safety valves in order to meet your specific requirements. In order to choose the best valve for your process the first step is to decide which type of valve you need: a safety valve or an overflow valve.

Please use our safety/overflow valve definition questionnaire to identify the model that is best adapted to your process.

Our experts are also available to give you advice and help you to choose the overflow or safety valve which complies with your installation's requirements.
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