HYDROTEST OF SDV & BDV

[sadra]

It is necessary to remove the instrument valves such as
SDV & BDV during piping hydrotest.

 

[hero123]

what it is the question?

 

[sadra]

dear hero123:
Is it advisable to remove the instrument valves such as
SDV & BDV during piping hydrotest? In other words, do u foresee any technical problem in cas one wishes to remove the shutdown/blowdown valves during the operation of hydrotesting.

 

[hero123]

no such recommendations are made in the reference codes for piping hydrotesting, refer ASME 31.4 or API RP 1110. hence, it will be better to have the valves while hydrotesting.

 

[sadra]

thanks hero123
I have also same idea but I had doubt.