General Pipe Rounting Criteria

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Yard Area Piping

Prepared By : Akhilesh Pastor


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Contents

v Introduction

v Pipe Arrangement

v Yard Area Piping


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Introduction

Piping systems are like arteries and veins which carry

The life blood of modern industrial civilization and provide

protection of life and property.


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IntroductionPipe lines play major role in following industrial area

Power Plant

Refinery industries

Chemical plants

Paper mill

Food processing

Fire protection


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Introduction

Pipe: Pipe can be defined as pressure tight cylinder used toconvey fluids.

Piping: Pipe sections when connected with fitting ,valvesand other mechanical equipment/component and

properly supported by hangers and supports

called piping.


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Introduction

This Figure Shows The Piping


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Piping Arrangements

Purpose: Piping cost form a significant portion of a plant s total

investments, the constructions , operation and maintenance

provisions that will optimize these cost are an important aspect in

design process.


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Piping Arrangements

General Routing Criteria:There are some criteria that

optimize piping cost and proper functioning of system.

Piping from source to destination should be as short aspossible with minimum change in direction.

Piping should not hinder any normal passage way also shouldnot encroach any equipment maintenance space.

Preferable

Not Preferable


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General Routing Criteria

Valves ,strainer, instruments on pipe should be easily accessible if

needed provide separate access platform.

Specific requirements of straight length of pipe for some

components to be maintained ,like for flow orifice we need to

provide 15 D straight pipe length at up stream of orifice and 5Dpipe at down steam of orifice.

Example of Straight length requirement for Flow Orifice


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For pipe line which shall carry liquid we have to make sure

that all filled air allowed to vent out of the line when line is filled

to achieve this a vent connection is provided on top most point

of pipe line.

Also arrangement is kept in the pipe line so that liquid can be

drain out if required.


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VENT

VENT

DRAIN

DRAIN

DRAIN

Not required

Not required

Do not provide unnecessary drain and vents


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To avoid air pockets inpump suction line use

top flat eccentric

reducer that will

prevents chances of

air pockets formations.

Top flat eccentric reducer


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General Routing Criteria Check feasibility for installation of pipe supports and make full

utilization of existing structural and concrete.

Preferably use long radius elbows where elbow are required

General Pipe Rounting Criteria

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