3 replies to this topic

[CS10]

Hi everyone,

 

I am working on checking the Pressure Relief Device Calculation and Generating Datasheet for the PSV in the attached file PSV-212 and PSV-312? 

 

Take an example for PSV-212, where the existing model is Swagelok (D and Orange). 

 

Is there calculation procedure or guideline for me to do the calculation to check the required and rated capacity of the PSVs? 

 

As per API 6D Guideline, these two PSV will serve as Valve Cavity pressure relief. However, I more than happy if you could please give me some more insight into the calculation required. 

 

 

 

Many thanks,

 

Attached Files

•  PSV-212.Cheresources.JPG   57.11KB   1 downloads

Edited by CS10, 20 February 2025 - 01:59 AM.

[snickster]

Attached is an old API RP 521 section that provides equation and guidance for thermal relief valve sizing.  To be conservative you could take the maximum solar radiation for the area your valve is located can be used to calculate "H" in the calculation.

Attached Files

•  Thermal Expansion relief - equation API RP 521.pdf   241.35KB   23 downloads

[breizh]

Hi,

Consider this resource, similar to above. 7-4-8-2 

Breizh

Attached Files

•  EHB_en_7-Sizing.pdf   4.77MB   20 downloads

[CS10]

Thanks snickster and breizh for sharing the the Standard and reference.