Carbon steel piping with internal PE / ROTO lining is used for liquid service with high chloride as well as higher oxygen content. The maximum operating temperature of the PE & ROTO lined piping is 60 °C. Also, these types of coatings are suitable for gas-liquid ratio values upto 300. A PE liner consists of
A Presentation on “Piping Materials Take-off & Processing: An Overview”
Major steps involved in Piping Material Management are: Preparation of Piping Material Class Preparation of purchase specifications/datasheet for piping specials Preparation of Material take-off Preparation of Material Requisition Receipt of quotations from prospective bidders Technical Bid Evaluation Vendor document review/approval (post award) Material Take-Off (MTO) of piping items is a detailed listing of piping components
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BALL VALVE DESIGN FEATURES: A Literature-Part-3 of 4
Continued from part 1 and part 2…….. Body Cavity Relief (Pressure Equalisation) Ball valves are double seated valves which incorporate a cavity between the seats. Body cavity will get pressurised only when the seats are damaged. Cavity relief provision required only for trunnion mounted ball valves. Not required for floating ball valves as the seats
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Inspection & Test, Marking & Colour Coding and Packing Requirements for Pipes & Fittings
The technical requirements for the piping components are mentioned in my earlier post. Click here to refresh those requirements. Additional to those requirements, the Requisition Engineer should include the inspection & testing, marking & colour coding and packing & preservation requirements in the purchase requisition. Requisition engineer has to collate all the inspection & testing
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What will you do if Carbon Steel pipe is installed in place of LTCS
Introduction: Low Temperature Carbon Steel (LTCS) is used in piping system when there is a possibility of process fluid temperature falling below -29 degree centigrade during operation. In typical refinery A 106 Gr B material is used for carbon steel and A 333 Gr 6 is used for LTCS in normal operation. There is no
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SOUR EXPERIENCES AND HICCUPS OF HIC: A Presentation
What is a SOUR environment? NACE DEFINES a Sour environment is one which contains H2S either in the gaseous or aqueous media PROPERTIES OF HYDROGEN SULPHIDE Chemical Formula : H2S Odour : Rotten Egg Boiling point : 60OC Specific Gravity : 1.19 Odour level : 0.13 mg/kg FATALITY OF HYDROGEN
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Common Non Ferrous Materials used in Process Piping Industry
I had already published an article which relates to the most common ferrous materials used in piping industry. Click here to visit the page. In this article I will mention about the most frequently used non ferrous piping materials. Plastic materials: In comparison with metallic materials, the use of plastics is limited to relatively
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A short article on GRP Pipe for beginners
GRP Family: GRP: Glass – fibre reinforced plastic. GRE: Glass – fibre reinforced epoxy. GRVE : Glass – fibre vinyl ester. GRUP : Glass – fibre reinforced unsaturated polyester. Characteristics of GRP: Corrosion resistance: Corrosion resistant to both inside and outside corrosion. As a result additional linings and exterior coatings are not required. When the
Major Steps involved during Procurement Process of piping/Mechanical items for an Oil and Gas Industry.
Major Steps involved during Procurement/Purchase Process of piping items for an Oil and Gas Industry. 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/ steps which need to be followed as mentioned below: In
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A Recorded Webinar on “Meeting Specs for Safety: The Role of Material Properties Assurance”
About this webinar:In this webinar, T.D. Williamson Product Line Director Rich Kehl will help operators worldwide understand how they can meet codes and safety specifications — and improve pipeline integrity — through improved material properties assurance. He’ll discuss the importance of material compatibility in equipment that gets attached to pipelines; he’ll also talk about how
