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CODES & APPREVIATIONS

ASME American Society of Mechanical engineering

ANSI American National Standards Institute

ASTM American Society for Testing and Materials

AWS American Welding Society

NEMA National Electric Manufacturers Association

IEEE Institute of Electrical and Electronics Engineering

AISC American Institute of Steel Construction

NEC National Electrical Code

ISA Instrument Society of America

ABMA American Boiler Manufacturers Association

NEPA National Fire Protection Association

AMCA Air Moving and Conditioning Association

HEI Heat Exchange Institute

HI Hydraulic Institute

IS 2147 Degrees of protection provided by enclosures for low voltage switch

Gears and control gears

IS 1566 Hard down otherwise fabric

IS 2751 Ms welded wire mesh

IS 2116 Sand used for m

ANSI B31.8 Gm transmission and distribution piping system

ANSI B31.4 Liquid petroleum Transportation piping system

API 1104 Standard for welding pipeline and related pipeline

Part 192 Title logTransportation of natural and other gas in pipeline (Vs dept.

of

Transportation pipeline safety standards

Part 195 Transportation of liquids in pipeline (-do-)

BS 4365 Argon. Son

BS 4105 Co2 gas type

ASTM E2&E3 Macroscopic exam welding

IS 1200 (part I)

IS 3764 Earth wale

IS 456 Plain and reinforced concrete

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IS 800 Strl. Steel work

IS 1077& IS 2250Brick and mirter

IS 2212 Brick work

IS 383 Aggregates

IS 269 Cement

IS 432/1139/1786

1566/2751 Reinforcement

IS 226 Strl. steel

IS 814/815 Electrodes for welding

IS 1077 Bricks

IS 3502/226 cloqun plates

IS 5961 Ci Gladdings

IS 5455 Ci steps

IS 432 (Part I) MS round bendsIS 1139 Performed bars

IS 1786 Cold twisted bars

NDE

a) Visual Examination:- As per paragraph 136-4-2 of ANSI B31-1

b) MPI: Article 7 of ASME Sec V and Accepted as per ANSI B31-

1

c) LPI: Article 6 of ASME Sec V and accepted as per ANSI B31-

1

d) RT: Article 3 of ASME Sec V and accepted as per ANSI B31-

1

Codes and Standards:

1. ANSI B31.1 Code for pressure piping and power piping2. IBR 1950 With latest

3. ASME Sec I Power boilers

Sec II Material specification part A & C

Sec V Non destructive exam

Sec VII Devision1, Pressure vessels

Sec IX Welding and brazing

4. ANSI B16.5 Steel pipes flanges & flanged fittings.

5. ANSI B16.9 wrought steel butt-welding fittings.

6. ANSI B16.11 Socket welding ends.

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7. ANSI B16.25 Butt welding ends.

8. ANSI B16.34 Steel valves - Flanged butt weld ends.

9. ANSI B36.10 welded seamless wrought steel pipes.

10. IS 3677 Unbonded rock and slag wool for thermal insulation.

11. IS 3144 Method of test for mineral wool.

12. PFI Pipe fabrication institute

13. DIN 17715 Seamless steel tubes for pl.temp

14. DIN 2448 Seamless steel tubes dimension and weight

15. DIN 2413 Steel tube calculation of wall thickness against Initialpressure

ASME B 16.1 - Length of valves

ASME B 16.5 - Pipe flanges and Flanged fittings.ASME B 16.9 - Butt weld fittings

ASME B 16.10 - Face to face and End to end dimension of Valves.

ASME B 16.11 - Foeged fittings and socket welded fittings & threaded

fittings.

ASME B 16.21 - Non-metallic flat gaskets for pipe flanges.

ASME B 16.25 - Butt welding ends.

ASME B 16.28 - Elbows :- Butt welding SR elbow and returns.

ASME B 16.34 - Valves ,flanged ,threaded and welding ends.

ASME B 31.1 - Power piping (Design code)

BS 806, IBR 1950.ASME B 31.3 - Chemical plant & Petroleum refinary piping

ASME B 31.4 - Oil transportation

ASME B 31.5 - Refrigeration piping

ASME B 31.8 - Gas transmission and Distribution piping

ASME B 36.1 - Pipes

ASTM A 350 - For General requirements of piping

ASTM A 530 - Tolerance for thickness of pipe

API 650 - Oil Storage tank

IRD Technical Code for Boilers

IS 226 Structural steel std. Quality

IS 554 Dimensions for pipe threads where pr. tight joints arerequired.

IS 778 Gunmetal gate and check valves for general purpose.

IS 780 Sluice valve for water works purposes (50 to 300mm

size)

IS 1239part I&II Mild steel tubes, tubular and other wrought steel

fittings

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IS 1363 Black hexagonal bolts, nuts and where nuts (dia 6 to39 mm)

and black hex. Screws 6 to 39mm.

IS 1364 Precision and semi-precision hex. with screws(6 to

39mm)

IS 1703 Ball valves including floats for water supply purpose.

IS 2106 Plant washers

IS 2062 Structural steels (fusion welding quality)

IS 9404 Colour coding for the identification of pipeline

IS 1879 Malleable CI pipe fittings

IS 3038 As castings for pr. containing parts suitable for H.T.

serration

IS 2147 Weather proof and dust proof testing(IP:65)

Degree of protection

IS 800 Code of practice for use of structural steel in general

building

Construction

IS 2685 Code of practice for selection , installation and

maintenance of

Sluice valves.

IS 2712 Compressed asbestos fibre jointing

IS 2825 Code for unfired pressure vessel

IS 2901 Sluice valves for water works purposes (350 to

1200mm)

IS 3138 Hexagonal bolts and nuts (m42 to m150)

IS 3589 Electrically welded steel pipes for water gas and

sewage(200 to 2000mm nominal dia)

IS 2712 Specification for compressed pipes for fibre jointing

MSS:SP:25 Standard mandatory system for valves, fittings, flanges

and

Unions

API 598 Valves imprecation and test

API 601 Metallic Yorkers for raised face pipe flanges and flange

Connection, Double packed corrugated or spiral wound

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API 602 Compact carbon steel gate valves

BS 5352 Specification for steel wedge gate, globe and check

valves

50mm and smaller for the petroleum, petrochemical

and allied

Industries.

BS 5146 Imprecation and test of valves

MSS SP49 Forged steel screwed fittings 2000, 3000 and 6000

paunch

MSS SP50 Forged steel screwed fittings and brushings

MSS SP61 Hydrostatic testing of steel valves

IS 1538 C.I fittings and pressure pipe for water gas and sewage

IS 1747 Nitrogen

BMCR Boiler Maximum Continuous Rating

HFO Heavy Fuel Oil

lSHSO Low Sulphur Heavy stock Oil

LDO Light Diesel Oil

HTM High Tension Motor

LTM Low Tension Motor

EMA Electric Motor Actuators

DNB Departure From Nucleate Boilers

EPRS Effective Protected Radiant Surface

BCW pump Boiler Circulating Water Pump

IS 4038 Foot valves for water works purposes

IS 4682 Code and proactive for living of vessels and

equipments to

Chemical products part I Rubber

IS 4736 Hot dip and nickel coating on steel tubes

IS 5312 part I Swing check type refluxes (non-return valves)

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PIPING ORIENTED ABBREVIATION

ANSI AMERICAN NATIONAL STANDARDS INSTITUTE

ASME AMERICAN SOCEITY IOF MECHANICAL ENGINEERS ASTM AMERICAN SOCEITY FOR TESTING AND MATERIALS

LBS POUNDS

BB BOLTED BONNET

BC BOLT CIRCLE

BE BEVELED ENDS(FOR WELDING)

BF BLINE FLANGE

BM BILL OF MATERTIAL

BOP BOTTOM OF PIPE

BW BUTT WELD

Ch.Op . CHAIN OPERARTED

CI CAST IRON

CO CLEAN OUT

CONC . CONCENTRIC

CPLG . COUPLING

CS CARBON STEEL CAST STEEL OR COLD SAPRING

DF DRAIN FUNNEL

DIA . DIAMETER

ECC ECCENTRIC

ELEV . ELEVATION

FF FLAT FACED OR FULL FACED

FLG FLANGE

FOB FLAT ON BOTTOM

FW FILLET WELD

GJ GROUND JOINT

HC HYDROCARBON

IBBM IRON BODY BRONZE MOUNTED

ID INSIDE DIAMETER

IDD INSIDE DEPTH OF DISH

INS INSULATE

INV INVERT(INSIDE BOTTOM OF PIPE

IPS IRON PIPE SIZE

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LR LONG RADIUS

MI MALLEABLE IRON

OD OUTSIDE DIAMETER

OS & Y OUTSIDE SCREW & YOKE

PE PLAIN END(NOT BEVELED)

PR PAIR

PSIA POUNDS PER SQUARE INCH ABSOLUTE

PSIG POUNDS PER SQUARE INCH GAGE

RED REDUCER

RF RAISED FACE

RTJ RING TYPE JOINT(SOMETIMES JUST DESIGNED RJ)

SCH SCHEDULE SCRD SCREWED

SF SEMI-FINISHED

SMLS SEAMLESS

SO SLIP ON

SPEC SPECIFICATION

SR SHORT RADIUS

SS STAINLESS STEEL

STD STANDARD

STL STEEL

STM STEAM

SW SOCKET WELD

SWG SWAGE

TE THREADED END

TEMP TEMPERATURE

TOC TOP OF CONCRETE

TOS TOP OF STEEL

TYP TYPICAL

VERT VERTICAL

WE WELD END

WN WELD NECK

WT WEIGHT

XH EXTRA HEAVY

XXH DOUBLE EXTRA HEAVY

AISC AMERICAN INSTITUTE FO STEEL CONSTRUCTION

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API AMERICAN PETROLIUM INSTITUTE

AWS AMERICAN WELD SOCEITY

AWWA AMERICAN WATER WORKS ASSOCIATION

MSS MANUFACTURERS STANDERDIZATION

W/ WITH-SUCH AS, W/SS TRIM (WITH STAINLESS STEEL TRIM)

L ANGLE(A STRUCTURAL 4 ANGLE SHAPE)

C CHANNEL (A STRUCTURAL 4 CHANNEL SHAPE)

W W SHAPE (A STRUCTURAL 8 WIDE FLANGE

ASSY. ASSEMBLY

AVG AVERAGE

B&B BELL AND BELL

BLDG BUILDING B&S BELL AND SPIGOT

BWG BIRMINGAM WIRE GAGE

CAS CAST ALLOY STEEL

CO2 CARBON DI OXIDE

COND CONDENSATE

CORR. CORROSION

DWG DRAWING

EF ELECTRIC FURNACE

EFW ELECTRIC FUSION WELDED

ERW ELECTRIC RESISTANCE WELDED

FIG FIGURE OR FIGURE NUMBER

FS FORGED STEEL

FSS FORGED STAINLESS STEEL

FT FEET OR FOOT

GALV GALVANIZED

GR GRADE

H2 HYDROGEN

HDR HEADER

LC LOCK CLOSED

LO LOCK OPEN

LW LAP WELD

M MISCELLANEOUS SHAPES,STEEL

M&F MALE AND FEMALE

MFG MANUFACTURE

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MIN MINIMUM

MW MITER WELD

NI NICKEL

NC NORMALLY CLOSED

NO NORMALLY OPEN

OH OPEN HEARTH

REINF REINFORCE

S STANDARD BEAMS, USUALLY CALLED I-BEAMS

S.O. STEAM OUT

SQ SQUARE

SWP STANDARD WORKING PRESSURE

S.C. SAMPLE CONNECTION T.C. TEST CONNECTION

T&G TONGUE AND GROOVE

VC VITRIFIED CLAY

WB WELDED BONNET