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[MW:560] Re :[MW:552] Re: SET PRESSURE FOR PRESSURE RELIEF VALVE FOR HYDROTESTING OF POWER PIPING

By Materials & Welding
As per Section VIII Div 1 there are diffrent conditions specified.
1. In case of Single PRV
2. In case of multiple PRV
3. In case of fire case PRV

If I remember correctly, in case of single PRV, it is 1.05 times MAWP, in case of multiple, it is 1.10 times MAWP, in case of fire case, it is 1.16 times.


You may refer the relevant section to find more detail.

Regards,

Rakesh

On Sun, 10 Feb 2008 12:38:16 +0300 materials-welding@googlegroups.com wrote

As per aramco project specifications, Test RVs to be set at 5% above test pressure and tested within 1week/1month for new projects/maintenance work, respectively.
regards


On 1/30/08, shailesh dave wrote:

Dear Mr Dave
Could you please resend this query with proper subject line? And also in future please don't hit reply button while starting new thread, instead u can create new mail and send to

materials-welding@googlegroups.com

 

Best regards
Raghuram Bathula




From: shailesh dave [mailto:snd2988@yahoo.com]

Sent: Wednesday, January 30, 2008 1:46 PM
To: materials-welding@googlegroups.com

Subject: Re: [MW:537] Re: 533] Filler metal for P 11 (O/L SS 347) to P8
 

Dear Members,

 

Can anybody tell me at what pressure of hydrotest be safety relief valve set. What is the reference code.

 

Regards,

 

S.N.Dave

 

QA/QC Manager

 


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