color coding
DESCRIPTION
Color codingTRANSCRIPT
Attachment – 2- Color Coding and Labeling
The nature of the pipe contents shall be identified by means of a Three Band Colour Code Identification Band System , colors are as specified in Norsok DP-002 The outer bands, which will be the same color, are the Basic/Primary Identification Bands (PIB) and the middle band is the Safety/ Secondary Identification Band (SIB). The arrangement is shown in Figure 1.
Identification & Size
The width requirements for the PIB’s and SIB shall be the same for all pipe sizes over 6” diameter, with narrower band widths being used for pipe sizes varying from 2” to 6” diameter. The dimensions shall be as follows Table -1
Table -1
Pipe Diameter Each Basic/Primary Band Safety/Secondary Band
2” to 6” inclusive 75 mm 50 mm
Greater than 6” 150 mm 100 mm
Colour Coding Bands shall be provided on both sides of and adjacent to valves, tees, important fittings, wall entries and overpasses and outboard of flanges to and from equipment such as vessels, tanks, exchangers, compressors and pumps
Colour coding bands shall be provided at uniform intervals, not less than 30m and not more than 50m depending on the complexity and pipe run lengths, along horizontal and up vertical sections of pipework and at all feed points. Where multiple lines run close to each other, such as in common pipe racks, the line numbers and flow direction shall be located directly in line with one another at positions that are readily visible.
For Valves, the full valve body shall be painted with the SIB for the relevant fluid group. The full Color code shall be applied both sides of the valve, to the adjacent pipework.
For Control Valves, the valve bonnet and actuator or hand wheel /lever, shall be painted with one of the following two colours, to indicate whether the Control Valve is designed to fail open or fail closed as shown in figure 2
Fail Open Control Valves shall be painted Green,Fail Closed Control Valves shall be painted Red,
Content Labeling and Safety Warning Signs
The additional use of Colored Labels giving the full or abbreviated product description, temperature, pressure, and other details necessary to identify any potential hazard, together with the appropriate visual aids and hazard pictorial symbols, is to be encouraged. Such labels and markings shall not, however, be considered as a substitute for the Color coding, whose application is considered mandatory.
Where applied, labels shall be brief and informative and written in English. The text size for different pipe diameters shall be as specified in Table -2
The background colour of the label shall be similar to that of the appropriate PIB, ideally with appropriate SIB contrasting text colour,.
The length of the labels shall vary from 200 to 800mm and they shall be applied adjacent to the CCIB locations.
Labeling shall be in the form of painting or self-adhesive plastic labels. Plastic labels shall be of high performance type suitable for marine environment.
Line Numbering
In addition to being Colour Coded, each pipe system, pipeline and valve shall be individually identified by marking them in accordance with the BW Equipment Identification and Tag Numbering System, The required identification markings relate to pipe size, service, design, area code and ownership code. All characters used shall be in upper case. No separators, hyphens, punctuation marks or spaces are allowed.
The line number and the flow direction shall be stenciled on each pipe section and pipeline together with the CCIB, to provide the pipework with unique traceability. The identification markings shall be stenciled on the pipe a distance of approximately 400 mm from the edge of the outer colour band. Letter size shall be equal to half of the pipe diameter for pipe between 2” and 12” diameter, with a minimum height of 1” for smaller pipe sizes and a maximum height of 6” for larger pipe sizes.
Line identification markings shall be stenciled in black directly onto the light grey/white decorative background.
Table -2 Size of Lettering
Pipe Diameter Width x Height Spacing
2” to 6” inclusive 30 x 30mm 10 mm min.6” to 50” inclusive 80 x 80mm 25 mm min.Greater than 50” 100 x 100mm 30 mm min.
Table -3 Shape and size of direction arrow shall be as follows:
Pipe Diameter W1(mm) W2(mm) L1(mm) L2(mm)
2” to 6” inclusive 10 30 45 135
6” to 50” inclusive 40 80 90 270Greater than 50” 50 100 150 450Table – 4 Colour Coding
Equipment Colour DescriptionSteelwork All Topsides Structural Grey
Steelwork Unless Otherwise SpecifiedAll Sub Structural Steelwork Grey
Tanks And Coated Exterior Wall Cladding White
Accommodation, Storerooms And Other Interior Living And Workroom Areas
Per Architectural Schedule
Firewalls (If Painted) WhitePainted Floor Decks/Walkways GreyAccess/Escape Routes Black With Yellow Stripes
Overhead Obstructions Yellow With Black Stripes
Monorails/Hoists YellowHandrails YellowLadder Cages Colour Of StructureClean-Up Burner OrangePiperacks WhiteLifeboat Davits WhiteGratings BrownPipe Supports GreyHVAC DuctConditioned Air Red With Blue Bands
Fresh Air GreenExtract/Recirculated Air GreyExhaust Air Brown With White BandsMiscellaneous
Crane Booms & l Cranes OrangeLifeboats OrangeTanks Light ColourCaisson WhiteESD OrangeHelideck (Perimeter of Landing Area, notations
& markings, structural underside & walkways)Helideck Topside
White
GreenLagging Aluminium Or Stainless Steel Jacket Unpainted.
Colour Of Service Banded Only.Walkways & Escape Routes Green with Yellow Strips on both sidesCladding (If Coated) WhiteFlare Tip Handling System YellowRiser Turret Mooring YellowVessels Off WhiteTurbines, Pumps, Compressors Light GreenEngines Light GreyHeat Exchangers Off WhiteAir Compressors BlueMinor Equipment Light GreyWellhead YellowFire Fighting RedWinches GreyControl Valves SIB ColourActuator SIB ColourHand Lever and Wheel SIB Colour
Control Panels: Control Panels:Exterior Surfaces Beige Semi GlossInterior Surfaces White GlossPlinths Black Semi Gloss
Electrical Equipment Exteriors: Electrical Equipment Exteriors:Switchgear, Lighting, Panels Etc. Electrical Green
Transformers, Motors, Alternators Electrical Green
Stainless Steel Terminal Boxes Natural Finish
Pipe Grey Colour up to 120 ˚C, Aluminium above 120˚C
Piping Primary Identification
Band (PIB)
Secondary Identification
Band(SIB)Air Instrument Light Blue WhiteAir Plant Light Blue WhiteChemical, Biocide Violet BlackChemical, Catalyst VioletChemical, Scale Inhibitor Violet BlackChemical, De-Mulsifier Or De-Foament Violet BlackChemical, Surface Active Fluid VioletChemical, Glycol Violet OrangeChemical, Afff Red YellowCorrosion Inhibitor VioletChemical, Oxygen Scavanger Violet BlackChemical, Polyelectrolyte / Flokkulant Violet BlackChemical, Sodium Hypochloryte Solution VioletWax Inhibitor Violet BlackChemical, Glycol/Water ( Violet OrangeDrain, Closed Black BlueDrain, Mud BlackDrain, Open Black YellowDrain, Sewer/Sanitary Black GreenDrain, Water/Storm Black YellowFuel, Jet Brown VioletGas, Fire Fighting/Co2 Red Silver GrayGas, Fuel Yellow Ochre WhiteGas, Inert Yellow Ochre Silver GrayGas, Waste/Flue Yellow OchreOil, Fuel (Diesel Oil) Brown YellowOil, Hydraulic Brown BlueOil, Lubricating BrownOil, Seal BrownProcess Blow Down Yellow OchreProcess Hydrocarbons Liquid Brown WhiteProcess HydrocarbonsVapour Process Two Phase
Yellow Ochre Brown
Produced Water Green BrownSteam, Process Silver GreenSteam, Utility/Plant Silver GreenVent, Atmospheric Yellow Ochre Silver GrayVent, Flare Yellow OchreWater, Sea Antiliquifaction Green YellowWater, Sea, Ballast/Grout Green YellowWater, Fresh/Glycol - Cooling Medium Violet OrangeWater, Fresh, Potable Green BlueWater, Sea, Fire Fighting Red WhiteWater, Grouting Systems Green YellowWater, Fresh/Glycol - Heating Medium Violet OrangeWater, Sea, Injection Green YellowWater, Jet Green YellowWater, Fresh, Raw Green Green
Water, Fresh, Hot (Closed Circuit) Green VioletWater, Sea Green White
RAL Equivalent for the Colours
Colour RAL
Grey RAL 7001Black RAL 9005Yellow RAL 1021White RAL 9010Orange RAL 2003Blue RAL 5005Light Blue RAL 5012Green RAL 6018Electric Green RAL 6037Brown RAL 8001Silver RAL 9006Red RAL 3000Violet RAL 9010Yellow ochre RAL 1021Beige RAL 1001