Saturday, 3 February 2018

WHAT DOES A PIPING DESIGNER NEED TO KNOW?


Piping Designer the document refers and responsible for the overall plant layout, plot plan, equipment location, pipe routing, developments of the CAD models and the piping isometrics.

PIPE FITTINGS, FLANGES, AND VALVES
All designers know and understand the broad spectrum of items that make up the vocabulary of the piping language. This includes the many types of fittings, many different schedules, the wide variety of common piping materials, the flange class rating and the types function of the different value designs.

RELATIONSHIPS OF OTHER ENGINEERING GROUPS

All designers need to know and understand the relationships, activities, and contributions of other engineering groups on the total project. It includes Civil, Structural mechanical equipment, vessels, and tanks, Electrical and instruments/ control systems. These groups have responsibility for contributing piping success.

PIPING EXECUTION
All piping designer must understand how the piping design development is progressed successfully and is linked with P&ID, equipment layout, equipment vendor drawings, instrument vendor drawings, stress analysis and heat treatment, hydro testing and air testing, NDE examinations and pipe support.

PROCESS DOCUMENTS
Process engineering team prepared two major documents. These are PFD and P&ID. PFD is prepared by more experienced piping designer early in the project for plot plan development before availability of P& ID. P & ID's are used for all levels of piping activities, the design of the lines and possible to field follow up.

PROCESS VARIABLES

All designers must know and understand the four process variables Temperature, Pressure, level and flow. The instrumentation used to control or measure these variables.

PROCESS PLANT EQUIPMENT

All designers need to know and understand the type of types of equipment and list of piping related issues for each type of equipment. They must know which type of equipment has the nozzles fixed by the manufacturer and which type of types of equipment need to have the nozzle located properly. The designer also can understand the operational, maintenance, and construction/ installation issues for each type of equipment.

EQUIPMENTS OPERATION AND INTERNALS

All piping designer must understand the equipment process function and equipment internals. In order to orientation process and instruments nozzles/ connections and locate manhole, platform, ladder with cage and staircase access.

EQUIPMENT PIPING
All piping designer must understand the proper installation of pumps, compressions, heat exchanges, filters or any special equipments on a specific piping project.

ALLOCABLE PIPING SPANS

All piping designers can understand the span capabilities of pipe (for a different schedule) for a wide variety of common piping materials. When a new project introduces new materials and reduced the span options.

EXPANSION OF PIPE
All piping designers must understand all piping system as in alive. It has a temperature causes grow and move.

ROUTING FOR FLEXIBILITY

All piping designers must understand how to route the pipe for flexibility. It means that do not travel a pipe in a straight line from the origin to terminate.

WEIGHT AND LOADS ( line loads & dead loads)

All piping designers must understand the effect of weight and loading. They must recognize the concentrated load on the piping system weight and fluid weight.

STANDARDS AND SPECIFICATIONS
All piping designers must understand the standards specifications of piping materials. The designer must be an intimate knowledge of the primary standards and specifications they will use.

VESSEL PIPING

All piping designers must understand the connecting members, supporting and guiding of pipe attached to the vessels and tanks. Nozzles loading and nozzles orientation are important and do have limitations.

RACK PIPING
All piping designers can understand that there is the logical or clear approach for the placements of pipe in a rack and be setting a rack elevation. In a pipe, the rack has multi decks are available. Another good guideline is obtained from the rack piping, process lines on the lower deck and utility lines on the upper deek. The spacing of the line is kept in a proper manner.

EXPANSION LOOPS

All piping designers must understand the methods of sizing loops in the pipe rack. The expansion loops are commonly used various sizes, schedules, and materials.

DESIGN PRODUCTION METHOD
All piping designers able to make all piping documents (sketches, layout, detailed piping plan, piping isometrics) by using different methods. The designer must be able to get to the site and make proper, intelligent and understandable piping sketch in front of a client. After that produce a final drawing with detailed measurements and make a wide range of electronic 2D or 3D design tools.

FABRICATION AND CONSTRUCTION METHODS

All piping designers must be able to understand about the shop fabrication like spool fabrication modularisation and field erection methods and able to vigilant in shop and field materials splits, shipping box sizes, field welds, and fit-up welds.

HEAT TRAINING

All piping designers must understand the different type heat tracing of line pipe ( jacketing, tracer tubing or electric)

DELIVERABLES

All piping designers must understand the deliverables like plot plans, key plans, piping plans and sections and isometrics.

DRAWING CONTENTS
All piping designers must understand about their drawing contents dimensioning practices. It needs to clear communications to construction personnel.
The team piping designer refers that the person responsible for the overall plant layout, plot plan, equipments location, pipe routing, development of the CAD models and piping isometrics. It does not refer piping materials and stress engineer. They are involved in the design of a piping system.

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