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For qualifying a WPS, can we use a thin,samll diameter coupon to qualify the samll diameter, say 1" OD, and another thick,large diameter coupon to qulify the big thickness, say 60mm?

Could somebody tell how to do impact at low temperature, say -40C or -100C? What equipment need? Who can supply?

Could somebody indicate what we should do when we design, fabricate and inspect pressure vessels using ASME code but need PED for Europe country? Take pressure vessel made of SA516-70 as an exsample?

Could somebody recommend a book showing step-by-step how to design presure vessel and heat exchanger by PVElite?

Can somebody provide definition of "separate lip seal", better with a piture showing the structure. Thx!

Is there any web site that provide SS tube price in US? I do not if I am get a decent price or not.

When designing a PV fabrication shop, what should be considered? We are intend to fabricate both SS and CS vessel. Should the SS workshop be completely isolated from CS one? What is the requirement of NDE section?

Please somebody provide the definition of vapour belt for heat exchanger? Better with figure.Thanks.

Can somebody sugget how to prepare for the National Board pv inspector test? Any preparation materials suggested? Thanks.

Why two standards for hx-some one asks for ASME VIII and TEMA "C"? what if diffrent results from these two codes?

We are asked to fabricate an equipment with 316 stainless sttel, can we use 316L instead of 316 as it is hard to find 316 at local market.

Can somebody give some ideas about the possible questions that will be asked during the interview for pressure vessel AI?

What temperature shall the part be before it is welded? How to decide post-welding heat treatment? What is the air velocity limit during welding? Thank!

Can somebody provide me information about the chemical processing equipment or petrochemical equipment exhibitions in US, Canada and Mexico? Thnaks!

Can somebody tell what do pressure vessel inspectors do? What is inspected for new fabricated vessels and in-service vessels? Will the inspector check the calculation, implement NDE and monitor hydraulic test?