Basic's On Piping System

CODES

A code gives guidelines about the subject.It tells rejection and acceptance part of it. EX: ASME SEC VIII DIV 1
Standards is for specific product and gives guarantee for quality of that product. EX: ANSI B 16.5
Regulations are government imposed rules.EX:IBR.

PRESSURE PIPING CODES B 31

B 31.1 POWER PIPING.
Piping typical found in electric power generation stations, in industrial and institutional plants, geothermal heating systems, and central and district heating and cooling systems,

B 31.3 PROCESS PIPING.
Piping typically found in petroleum refineries chemical, pharmaceutical , textile , paper semiconductor , and cryogenic plants, and related processing plant and terminals,

B 31.4 PIPELINE TRANSPORTATION SYSTEMS FOR LIQUID HYDROCARBONS AND OTHER LIQUID .
Transporting products, which are predominately liquid between plants and terminal and within terminals, pumping ,and metering stations.

B 31.5 REFRIGERATION PIPING.
Piping for refrigeration and secondary coolants.

B 31.8 GAS TRANSPORTATION AND DISTRIBUTION PIPING SYSTEMS.
Piping transporting product which are predominately gas between sources and terminals.including compressor, regulating, and metering station, and gas gathering pipelines,

B 31.9 BUILDING SERVICES PIPING.
Piping typically found in industrial ,institutional, commercials, and public building and in multi-unit residences

B 31.11 SLURRY TRANSPORTATION PIPING SYSTEM
Piping transporting aqueous slurries between plants and terminal, and within terminal and within terminal, pumping, and regulating stations.

SCOPE OF B31.3

a)This Code prescribes requirements for Materials and components, design, fabrication, assembly, erection, examination, inspection, and testing of piping.
b)This code applies to piping for all fluids, including:
1)Raw, intermediate, and finished chemicals;
2)Petroleum products;
3)Gas, steam, air, and water;
4)Fluidized solids;
5)Refrigerants;
6)Cryogenic fluids (-151 ° to –425 °F).

EXCLUSIONS OF B31.3

This code excludes following:

Piping systems design for internal gauge pressures at or above zero but less than 105kPa (15psi), provided the fluid handled is nonflammable, nontoxic, and not damaging to human tissue and its design temperature is from –29 °C (-20 °F) through 186 °C (366 °F);
Power boiler s in accordance with BPV code Section-I and boiler external piping which is required to confirm to B31.1
Tubes, tube headers, crossovers, and manifolds of fired heaters, which are internal to the heater enclosure; and
Pressure vessels, heat exchangers, pumps, compressors, and other fluid handling or processing equipment, including internal piping and connections for external piping.

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