Effective Repair Solutions for Pipe Joint Leaks
Vivamus aliquam ornare sapien, a suscipit nisi convallis veltiam gravida felis nec. Fusce molestie semsit sed interdum anteamet adipiscing risus.
Vivamus aliquam ornare sapien, a suscipit nisi convallis veltiam gravida felis nec. Fusce molestie semsit sed interdum anteamet adipiscing risus.
Introduction Experience has shown that edges and welds are generally the first areas to show corrosion and coating breakdown, particularly in ballast and cargo tanks. This is due to a number of inter-related processes including surface preparation, coating application, deflection, and shear and buckling stresses on the edges and welds and so on. The quality…
Introduction There are a number of factors which must be considered when anti-corrosion coatings are applied. The major ones include: Condition of the substrate Temperature Relative humidity Weather conditions Condensation Ventilation Ultraviolet light (UV) 1. Condition of the Substrate The surface must be clean and free from dirt, dust, abrasive blast medium (if used), oil,…
Introduction Composite repairs are gaining popularity and acceptance worldwide among asset owners and operators. Composite repair methods and procedure are guided international engineering standards and provide an engineered, proven and durable solution to non-metallic pipe repair works. Components of composite repair materials generally comprise of filler rebuilding material, resin component and reinforcement layered sheet. Filler…
Common Causes of Flange Leakage A previous article highlighted the primary causes of flange leakage. This article provides more information about these. Uneven Bolt Stress. An incorrect boltup procedure or cramped working conditions near the flange can leave some bolts loose while others are overtightened and crush the gasket. This can cause in-service leaks, especially…
Introduction Any individual required to carry out inspections is to be qualified to NACE Coating Inspector Level 2or an equivalent qualification. The appointed coating inspector shall carry out inspections and record the results of the inspection at the various stages and verify that these are in compliance with the standards. All deficiencies/ non-compliances found at…
Introduction The objective in applying anti-corrosion coatings is to provide a film which will give protection and/or decoration to the structure being applied. The variables which govern the success of any application and subsequent performance are: Surface preparation Film thickness of the paint system Methods of application Conditions during application Surface Preparation As detailed in…
Introduction This chapter covers the major types of coatings that are currently available for use and includes general information on the composition of coatings. It is intended to give basic information on coatings and is not a comprehensive guide to anti-corrosion coatings selection. The coating manufacturer is to be consulted if information on a specific…