ASME BPVC SECTION IX WELDING_TRAINING - PART 10

How to Prepare a pWPS?

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Example situation for filling pWPS. CASE 1

We have to weld a pipe to pipe joint using GTAW welding. The material of the pipe is SA106 Gr B, 2" X Sch 40. Prepare the pWPS (Proposed Welding Procedure Specification) for the same.
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Previous Blog: 

http://hareeshkv.blogspot.com/2015/10/asme-bpvc-section-ix-weldingtraining.html

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Now please see the format below for WPS which is available with ASME Sec IX. The format is same for pWPS and WPS.

We will start filling the format. The numbers with rounded circles are for easily explaining the format. When ever a number is circled and some explanations are given, please understand that it directs the same number in the format.

(1) Here the company name is to be given.

(2) Here the person preparing the WPS/pWPS to be mentioned.

(3) WPS number , a numbering system inline with your companies numbering system can be followed
eg. WPS/001 or WPS/P1-P1-GTAW/001 etc.

(4) Here the date of preparation of pWPS to be given.

(5) In CASE 1, this is a pWPS, so we will write here as 'To be Established'

(6) Revision number is to be given. Revision 0 (zero) at the time of preparation of pWPS. Revision 1 if any changes done for the first time, Revision 2 if any changes done for the second time and so on.

(7) The date of revision is to be given

(8) Welding process used in the pWPS to be mentioned.
In this case it is to be written as GTAW

(9) Type of process used. In CASE 1, it is manual.
Please see the terms given in the bracket below. The types are manual (eg:-manual GTAW, SMAW), Automatic (eg:-Orbit welding), semi automatic (eg:-SAW) and Machine (eg:-ESW)

The series will continue...

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