Materials

Introduction to Vendor Drawing Review Vendor drawing review (VDR) is a review of valve drawings indicating cross sectional view, material of construction with respect to purchase requisition (PR)requirements / data sheets. Piping material engineer shall well understand  the Project/Client/contract specifications to take care of any requirements specified therein which need to be reflected in the drawing before taking up this ...

Table of contents: Active Fire System Passive Fire Systems Types of Coating Inorganic Coating a. Lightweight Vermiculite Concrete b. Water of Hydration Plasters Organic Coating a. Ablative Coating b. Subliming Compounds c. Intumescent Mastic Composition We have seen factors & causes of fire. Here we will see safety measures taken to prevent the fire. The normal measure used to safeguard personnel assets and the environment ...

Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. The Three Basic Requirements of Fire are A Fuel Source Oxygen Availability Ignition Source No fire can take place without all the three. Although ignition is usually a one off event in practice the types of fuel will vary from furnishings & fittings ...

Corrosion can be defined in a more simplistic way as deterioration of materials under the influence of an environment. Without exception, the corrosion of metals and alloys (majority of materials used in industry) in aqueous environments (the most often encountered environment) is an electrochemical reaction. A brief description of the electrochemical principles for the beginners of corrosion is made before ...

Table of contents: 1. Uniform Corrosion 2. Galvanic Corrosion 3. Crevice Corrosion 4. Pitting Corrosion 5. Selective Leaching (Dezincification) 6. Intergranular Corrosion 7. Erosion Corrosion 8. Cavitation Damage 9. Fretting Damage 10. Stress Corrosion Cracking Forms of Corrosion: There are different forms of corrosion of which below are commonly referred corrosion forms with ways to identify corrosion and preventive measures. ...

While procuring the piping material, one needs to go through the request for quotation phase. And whenever we prepare an enquiry specification/request for quotation (RFQ) there are many key points which needs to be considered and included in the specification so that all the project requirements are followed and met by the vendor/supplier during the delivery of the final product. ...

Many equipments and items need to be purchased in the piping project from different vendors/suppliers. Before finalization of the vendor/ supplier to get the pipe material, there are many phases/step which has to be followed. The first step is to float an enquiry specification for the equipment/item to the different vendors to get a techno commercial quotation. The enquiry is generally ...