Welding Procedure Specification (WPS)

A welding procedure specification (WPS) is a written document providing direction to the welder (or welding operator). It contains all the necessary parameters viz. joints, base metals, filler metals, positions, preheat, PWHT, gas etc. (including ranges, if any) under which the welding process must be performed. These parameters are known as variables (as per ASME Section IX). Three types of variables are mentioned in the code, these are; Essential Variable….

Hydrotest

Hydrotest a kind of pressure test in which the component being tested is filled completely with water or another liquid. Pressure, if required, is then applied to the liquid for the required time and the outside of the component is examined visually for leaks. Let us see, how the test from planning through execution is done. Preparation of System Test Package List of Instruments and status Pre-test Inspection Pressurizing /….

ASME Codes and Standards – A summary

Sections of ASME Boiler and Pressure vessel Codes (BPVC) The following list includes some of the most widely used Boiler and Pressure Vessel codes (BPVC) prepared and published by ASME. Section I……………………Rules for construction of Power Boilers Section II…………………..Materials Part A. Ferrous Material Specifications Part B. Nonferrous Material Specifications Part C. Specifications for Welding, Rods, Electrodes and Filler Metals Part D. Properties Section III………………….Rules for Construction of Nuclear Facility Components Subsection….