Safety valves – How they work, what they’re made of and everything else!

Safety valvesSafety valves act as a fail-safe. There are many types of safety valves and an example of it is a pressure relief valve. When the temperature or pressure exceeds, it automatically releases a substance from a pressure vessel, a boiler or other system.

Another type is the pilot-operated relief valve that are specialized and fitted to serve a particular purpose. Furthermore, a vacuum safety valve prevents a tank from collapsing. As I’ve already mention there are many types of safety valves, however, they all have a similar purpose.

Safety valves – How they work, what they’re made of and everything else

Safety valvesThe primary purse of a safety valve is to protect property, environment and life. Not only does it relieve pressure from vessels or equipment but, it also re-closes and prevent further release of fluid. Of course, that is after the normal conditions are restored.

Safety valves are safety devices, however, they are the last line of defense in many cases. That’s why it is really important to ensure that they are capable of operating at all times and under all kinds of circumstances.

To understand the existence of the safety valves, we need to look at the reasons for execss pressure in a vessel. There are surely many but, the most common are:

  1. Heat exchanger tube rupture
  2. Thermal expansion
  3. Blocked discharge
  4. Cooling system failure
  5. Chemical reaction

Exposure to external fire, often referred to as “Fire Case”

Needless to say, they can occur separately from other and they can also take place simultaneously. The air is to determine a worst case scenario and make the right safety valve. Yes,one safety valve has an extremely difficult mission to accomplish. Luckily, it is able to tackle with it efficiently.

Buckle up and have at it –  This is everything you need to know about them: