Max. Sunshine Temperature: 85º C Max. Relative humidity: 76% See breeze Thunderstorm – Fog SO2 : 2 ppm H2S: 10 ppm Wind velocity: 35 m/s
This painting specification and inspection instruction covers the minimum requirements for shop painting, field painting and repair work at site for the surface preparation and paint application to the Un-buried equipment, piping, steel structures, storage tanks, etc., which will be exposed to sea breeze and corrosive environment for use in industrial plant construction projects. Whilst the content of this painting specification and inspection procedure defines the essential requirements of surface preparation and painting, they do not relieve the construction contractor and/or equipment manufacturer from his responsibility to carry out the work in accordance with the appropriate codes and standards listed […]
Here are some important points in the ASME Section IX that are necessary to be taken in account for any welding inspection company that conducts welding inspection on fix equipment, process and power piping and above ground storage tank. A WPS is a written document that provides direction to the welder or welding operator for making production weld in accordance code requirement. It must be check by welding inspection company. The PQR documents what occurred during welding the test coupon and the result of testing of the coupon. It must be checked by welding inspection company. Procedure qualifications give suitability […]
Size, length and location of all welds conform to the drawings / specifications / Code. No welds added without approval. Dimensional and visual checks of the weld don’t identify welding discontinuities, excessive distortion and poor workmanship. Temporary attachments and attachment welds removed and blended with base metal. Discontinuities reviewed against acceptance criteria for defect classification. PMI of the weld, if required and examiner’s findings indicate they comply with the specification. Welder stamping/marking of welds confirmed. Perform field hardness check. Verify NDE is performed at selected locations and review examiner’s findings. Specified locations examined. Specified frequency of examination. NDE performed after […]
Welder is responsible for quality craftsmanship of weldments Welder meets qualification requirements Welder understands welding procedure and requirements for the work. Special training and mock-up weldments performed if required. Welder understands the inspection hold-points. Essential variables are being met during welding. Filler material, fluxes, and inert gas composition/flow rate. Purge technique, flow rate, O2 analysis, etc. Rod warmers energized or where rod warmers are not employed, the welder complies with maximum exposure times out of the electrode oven. Preheating during tack welding and tack welds removed (if required). Welding technique, weld progression, bead overlap, etc. Equipment settings such as amps, […]
Welding symbols and weld sizes clearly specified in drawing and related documents. Weld joint designs and dimensions clearly specified in drawings and related documents. Weld maps identify the welding procedure specification (WPS) to be used for specific weld joints. Dimensions detailed and potential for distortion addressed. Welding consumables specified. Proper handling of consumables, if any, identified. Base material requirements specified (such as the use of impact tested materials where notch ductility is a requirement in low temperature service). Mechanical properties and required testing identified. Weather protection and wind break requirements defined. Preheat requirements and acceptable preheat methods defined. Post-weld heat […]
Third party inspection companies are hired for site inspection for industrial projects. These companies are used for process and power piping, storage tanks, steel structures and pipeline inspection in their construction process.Third Party Inspection Companies are not involved in the installation; the supervision normally is done by engineering company.Contrary to shop inspection, the site inspection projects use the resident inspectors, which normally accommodated near the construction site.