Plastic Piping System: A Tool Against Chemical Corrosion – Part 2

PLASTIC PIPING SYSTEM: The Plastic Piping System consists of Piping Profile fabricated from plain end pipe, plain and flanged end Fittings (i.e. Elbows and Reducers) and stub-in branch connections. The Flanged Joints are Stub Ends with loose Backing Flanges. In case of Flanged Tapping Long Stub Flanges are recommended to be used in place of pipe stub-in and Short Stub ...

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Plastic Piping System: A Tool Against Chemical Corrosion – Part 1

1. Introduction to Plastic Piping System: Because corrosion is a problem in operating and maintaining any Chemical Process Plant, one would prefer avoiding steel completely as a piping material but since its not feasible because of the usefulness of steel in sustaining the Pressure and Temperature conditions normally foreseen in any Process Plant. That brings the concept of composite piping ...

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Rubber Lined Piping: A Solution to Corrosion Resistance

Introduction to Rubber Lined Piping: Corrosion is a menace in operating and maintaining a Chemical Process Plant. Hence given a choice one would be tempted to dispense away with Steel all together as a material of construction for piping used in a Chemical Plant. Unfortunately it is not practical to undermine the usefulness of Steel in sustaining the Pressure and ...

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Underground Piping (U/G) Piping – Part 2

While developing &preparing the underground piping layout there are different components and terms that would be used and referred in the drawings. Some of the common terms used are explained below: 1.     Catch Basin This device is used to collect surface drainage with an outlet liquid seal and sediment trap. The sketch Fig 1 illustrates a typical catch basin feature ...

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Underground Piping (U/G) and Types of Underground System- Part 1

Underground Piping (U/G) The piping system is taken underground generally for the utility services like cooling water supply to various units and cooling water return to cooling tower for line sizes normally 18 inch NB and above, other water services with big pipeline sizes, big oil supply lines and various sewer systems in the process units of the chemical, petrochemical ...

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Induced Stresses in Pipe- Hoop, Longitudinal and Radial Stresses

Topics covered Introduction Circumferential or Hoop Stresses Longitudinal Stresses Radial Stress Introduction to Induced Stresses: When the ends of the pipe ends are closed and pipe is subjected to an internal pressure ‘P’ there are various stresses that develop in the pipe. Each element of pipe are subjected to the below mentioned stresses which act in the direction as shown ...

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Jetty Head Facility Development – Part II

My previous jetty part 1 post explained method of loading and selection of jetty. This post will cover Jetty Head Facility Development Checklist for development of Jetty Head layout Once jetty selection and method of unloading is established one has to review the facility to be developed at jetty head development of jetty head facility can be reviewed broadly based on ...

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Jetty: POL Jetty Loading & Unloading Facility – Part I

Topics covered: Overview of jetty Types of Jetties Selection of POL Jetty Method of unloading Jetty Head Facility Development – Part II Checklist for development of Jetty Head layout – Part II Overview of jetty: A jetty is termed as a long, narrow structure made of wooden, earth, stone or concrete that protects the coastline against the currents and tides. ...

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Pipe Rack Piping Study

Pipe rack piping study: My this post explains the steps required to be performed for carrying out pipe rack piping study. General arrangement of the piperack is finalized during the development of the overall plot plan. The piperack may be an integral part of a process unit located in the middle of the unit or it may be an arterial ...

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Impulse Trap: Kinetic Energy Operated Traps

Impulse Trap: Impulse trap is classified as Kinetic energy operated traps based on its working principle. Impulse traps cannot give a dead tight shutoff and therefore the use of impulse traps is relatively limited as compared to other types available. Construction and Working Principle of Impulse Trap: The Impulse Trap is schematically shown in the accompanying sketch (refer Figure-1). It consists of a ...

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