Relief Valves and safety devices

Relief Valves and safety devices

The safety valve (in English pressure safety valve, acronym PSV) is an automatic device having an inlet and an outlet, and the purpose of which is to prevent that a structure, containing liquids or gases / vapors, can be subjected to a pressure pericolosa.Le safety valves must be checked periodically to ensure they are operated as specified. Many valves have for this purpose the outside a lever manually operated to allow the manual opening or to perform a test on the correct operation. This maneuver is, where can it ensures that the valve is not blocked, but does not guarantee the correct calibration value.

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