Weld Map Pressure Vessel. Weld Joint Category classification is done on the basis of joint strength In this classification the weaker joint has given more concentration and it is included in Higher. In the US the relevant standard for welding pressure vessels is the ASME Boiler and Pressure Vessel Code BPVC which has a 364-page subsection concerning welding.
How to Weld Pressure Vessels. You need to know what you are going to use the weld map for before you can decide what welds need to be on it. After approval the Shop Weld Plan along with WPS and qualified welder list will be issued in Welding NDT Manufacturer of Static Pressure Vessel shop for fabrication.
This article will deal with step by step guide for the preparation of Weld Map Shop Weld Plan WPS PQR WPQ as per ASME SEC IX for a Static Pressure Vessel designed in accordance with ASME SEC VIII DIV I for non-lethal Service.
If a pressure vessel weld fails to meet these quality control and assurance processes and non-destructive testing the reflection of the defective weld can be both difficult and expensive to rectify. Nowadays we start with the welding procedure qualification certificate this was BS 4870 part one and then EN288 part 3 it is now ISO 15614 using part one for carbon. The following sketch illustrates a typical pressure vessel weld map and indicates 4 WPSs are going to be used for manufacturing of this. In part-1 Click here to read of this article we had discussed about the preparation and approval of the weld map shop weld plan and proposed welder list which needs to be submitted for the consent of the customerclientTPI.
