Introduction

What is Pipe Schedule? As the main function of the pipes is to carry fluid under pressure therefore their internal diameter is their critical dimension. This critical dimension is referred to as the nominal bore (NB). Obviously, for pipes containing pressurised fluids the wall thickness, and by implication the pipe’s strength, is important. Wall thickness is expressed in “schedules“, referred ...

What is a relation between NPS, NB & OD of a pipe? What is NPT & what are its applications? What is a relation between NPS, NB & OD of a pipe? Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. Pipe size is specified with two ...

Purpose of ASME Design Codes: Before the start of design work on any new project we need to know what the design code is,since the piping system would be designed according to the guidelines & the requirement of the applicable code. Location: Generally the information on the applicable code would be given by the owner or the Process Licensor in ...

Stud Bolt Length Calculation: Calculating the stud bolt length is one of the activities needed to be performed by the requisition engineer. The major factors which contribute towards the calculation of the stud bolt length are: Flange rating, dimensional standard, type & thickness of gasket, flange facing, sandwich type components (eg.spectacle blind, wafer type valves etc.) As per Nonmandatory Appendices ...

1. Introduction to bolts 2. Classification of bolting material 3. Applications of bolts 4. Dimensional standards for bolts Introduction to bolts: The flanges are drilled to receive bolts which, if of the proper material, will develop the full flange strength and result in a satisfactory joint at the service intended. The term ‘bolting material’ covers bolts, studs and stud bolts. As per ASME B16.5, ...

1.0 INTRODUCTION TO PIPING ENGINEERING: Since piping engineering is central to detail engineering activity and the piping engineer more or less acts as the chief coordinator, a good grasp of the working and requirement of the other engineering disciplines is essential for successfully delivering quality detailed engineering within the allotted time. Let us briefly discuss the issues concerning the piping ...

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 ...

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 ...

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 ...

Thermodynamic Trap: Thermodynamic trap is classified as kinetic energy operated traps and it’s the most widely used trap in the oil and gas industry amongst all types. This thermodynamic trap has an extremely robust design and works on a simple mode of operation. It can operate at very high temperature and pressure. The means of operation for the trap is the dynamic effect of ...