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Safety valves are installed on process pressure equipment to release excess pressure due to faulty process operations, external fires and other hazards.
When all other safety and control devices collapse, the safety valve is last to release excess pressure and protect the scope of pressure equipment from explosion. So, safety valve serves to protect life and property.
Failure of pressure safety valves to function properly could result in the serious damage of vessels, exchangers, boilers, or other equipment. It is essential to maintain pressure safety valves and relief valves in good condition.
Periodic testing is one of the most important elements to ensure that the safety valves will provide this important protection.
On-line (on-site, in-situ, under operation pressure safety valves (safety relief valves…) is performed in real process pressure equipment operating conditions which are safety valves exposed:
- Process system temperature
- Accumulation and flow capacity
- Compliance of the back pressure
- And other process pressure equipment performance influences.
Therefore, the results of this method can be more accurate than the classical methods of testing the safety valves. A prerequisite is of course appropriate device and method that takes into account all the effects on the accuracy and credibility of the results in an unfavorable, industrial environment.
Method and device Legatest fulfills these conditions and it is at this moment on the world top position.
Please contact us for more information about the online safety valve calibration. 
Caminix Valve test bench
