Perfect Guide To Piping Engineering - Download PDF

Introduction to Piping Engineering

Piping is a major contributory in the Design and Construction of

• Refinery,
• Petrochemical,
• Oil & Gas Plants.

Basics of Piping

Piping :-
Piping is a system of pipes which along with the inline components such as flanges, valves, fitting, bolts, gaskets and supports used to convey the fluids from one location to another.

Pipe Size :-
Pipes are usually specified by the standard pipe size designations such as Nominal Pipe size and wall thickness.

Nominal Pipe Size (NPS) :-
It is dimensional designator of Pipe Size. It indicates standard pipe size when followed by the specific size designation number without an inch symbols.

Diameter Nominal (DN) :-
It is also a dimensionless designator of pipe size in the metric unit system, developed by the International Standards Organization (ISO). It indicates standard pipe size when followed by the specific size designation number without a millimeter symbol.

Pipe wall thickness (Schedule) is expressed in numbers. A schedule number indicates the approximate valve of the expression 1000 P/S, where P is the service Pressure and S is the allowable stress, both expressed in pounds per square inch (psi).

The Higher the Schedule is expressed in numbers. The outside diameter of each pipe size is standardized. Therefore, a particular nominal pipe size will have a different inside diameter depending upon the schedule number specified.

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