Re: [MW:16302] Pressure Relief Valve Calibration Frequency / Guidelines

Technical Inspection of pressure vessels and its safety accessories pressure safety valves&relief valves must be applied annually. It is specified in various standards and regulations. (TRD, ASME Section I, ASME Section VII, ASME Section VIII, API and National Board inspection code).

Pressure Relief Devices Performance Test Codes specified in ASME PTC 25 Standard.

 

You can also check online functional tests of safety valves at: www.obef.com.tr

 

Regards,

Eyup Tan

 

On Thu, Dec 20, 2012 at 9:45 AM, Vino Varghese <vinopvarghese@gmail.com> wrote:

Dear Experts,

We have a Client requirement for safety reason to have PRV (Pressure Relief Valve) in Piping for the Hydro test. The set Pressure is at 110% of Hydro test Pressure.

Piping Standard: ASME B 31.3, Ed'2010.

Query: What should be the frequency to have these calibrated? Please share any reference standard.

We would like to update this requirement in our Equipment Calibration Procedure.

Thanks & Regards

Vino, Doha

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