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k,lets check with grinding and inspect thoroughly.... Thank you very much for your quick response and support....

But how can i ensure that its a surface crack or having more depth? I checked the internal surface and its perfect,there is no sign of damage. What type of inspection is used in FRP to found the surface defect.(same that of NDT in steel)

Hi.. Since I dont have much experience in FRP/GRP, Is any one can share the inspection requirements for the same? Last day we had found one discontinuity on the FRP flange looks likes minor crack..So how can I ensure the integrity or what the repair method? Is it possible to apply lamination...

Good morning Friends, Is anybody have the idea regarding the code symbol for ERV/PVRV? Like the PSV , ASME stamp is required for ERV/PVRV also? ERV/PVRV which is mounted on the storage tank (As per API 650) need to be stamped with ASME/API?Set pressure is 0.08bar(ERV)&0.05bar (PVRV) Please...

Good morning Friends, Is anybody have the idea regarding the code symbol for ERV/PVRV? Like the PSV , ASME stamp is required for ERV/PVRV also? ERV/PVRV which is mounted on the storage tank (As per API 650) need to be stamped with ASME/API? Please share your ideas........

HIII Guys, All Flange Bolt Holes Straddle the Center lines that is for a vertical flange face (the flange face in the vertical and the line is horizontal) the bolt holes want to be orientated to straddle the vertical and horizontal center lines and also for the horizontal one the bolt holes...

can any one share the checklist for box up inspection during pre commissioning stage...its really urgent...kindly provide the same.

Thank you EdStainless (Materials)... for your valuble replies...

The steel grade is A36 having thickness of 6 mm.

Good morning, During inspection its observed that some white spots were observed on the internal shell surface where the attached welding is there on the outside.I think its because of the over heat and how much it will affect the integrity of shell plate? is there any special...

Good morning,Exchanger which is connected to the Pump means inlet from the pump will comes under the scope of ASME sec VIII or not?Go through the following. as per API 510 Apendix A b. All classes of containers listed for exemption from the scope of ASME Section VIII: Division 1: 1. Those...

DekDee, I agreed with you that normally it is not a closure weld.But,due to the reason of this joint design is groove and It will be welded after hydro test its comes under the closure weld category or not?

Code which prefer is B31.3 and Exactly i dont have the Temp and pressure value.Just confirmed that high pressure service and material is ASTM A 403 Gr.WP304/304L.And with respect to the design, Even it is normal service also ,vent cap are seal welded.Technically i dnt hav much idea regarding the...

HI .... What type of NDT that you prefer for the butt welded cap with the vent connection.Normally i had seen the cap as threaded and we are preferring DPT for the seal weld.But here we have the doubt that 100% RT /UT is required?

Thank you arun...now i cleared...

Mr pennpiper, I mean Reinstatement of piping during Pre-commission activity and for the reinstatement inspection,what are all the points that we need to check? Normally here in plants they are completing the full line structure as per drawing with original gaskets and 100% bolt...

Hello.. What is reinstatement in piping? I understood that bring back to his original position.means the condition after box up?any one can explain please?

Thank you all.... I understood that if there is no isolation valve or any routing hose arrangement,we need to shut off the unit for repair a single PSV also.But, here i have seen that most of the PSV are connected to the equipment with out any Isolation valve. 1.Actually is there any criteria...

Can i know that if a single PSV with out any block valve arrangement get damnaged,how the repair activity can be proceed with out shut off.