ASME BPVC (Boiler & Pressure Vessel Code) Calibration Requirements

[kwalityguy]

We spot weld to ASME BPVC. Looking through the volumes of specs, can anyone point out where the specification is for the calibration frequency of a pressure gage mounted on a spot weld shear test machine? I thought I saw this years ago but for the life of me can't find it again.

 

[Stijloor]

A Quick Bump!

Can someone help?

Thank you very much!!

 

[Marc]

It may be one of those "manufacturer recommendations" situations.

I'm not in BPVC so I'm only guessing since you can't find a specification for it. Typically calibration frequency is dependent upon the type of gage, type of use and the criticality of the measurement to the process. Since it's a fixed gage I would guess 1 year.

 

[HenryPierce]

I don't have the answer myself, but I think you can contact an ASME expert, they'll sure have the answer.
There is a contact form under this link : https://www.tuv.com/en/corporate/bu...inery_1/pressure_equipment_2/asme_1/asme.html
Good luck


.

 

[Michael T]

We spot weld to ASME BPVC. Looking through the volumes of specs, can anyone point out where the specification is for the calibration frequency of a pressure gage mounted on a spot weld shear test machine? I thought I saw this years ago but for the life of me can't find it again.

kwalityguy...

Which Code are you thinking about? I've been through Section I, Section IV, Section VIII - Division1... B31.1 and B31.3 and do not recall seeing any call out or specification for calibration frequency.

Marc has the right of it... calibration frequency is predicated upon the piece of equipment, the use, calibration history, etc.

Hope this helps...

Cheers!!!

Michael

 

[evocube]

Normally ASME (Sec. VIII Div. 1) is fairly vague about calibration. As long as you have a calibration program you're normally fine. Based on that I would go by manufacture's recommendation or the basic clause of Annually or any time the gauge is thought to be inaccurate, repaired.........

Just a note NDT equipment is a whole different Subject.

 

[Hershal]

Based on the original post, I am guessing that the shear test machine may also be some type of pressure vessel. If so, there may be state or similar laws that regulate when it must be re-certified to the pressure standard.

If I am correct, and let us say an annual re-certification, I would put the pressure gage on a cycle not to exceed six months, so you catch potential issues while they are still potential. That includes the fact that pressure gages can easily go non-linear based on handling among other causes.

Of course, my guess may be incorrect.