Abbreviation For Piping Specifications
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API
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American Petroleum Institute
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LJ
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Lap Joint
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ASME
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American Society of Mechanical Engineers
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LR
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Long Radius
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ASTM
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American Society for Testing and Materials
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LGTH
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Length
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BE
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Beveled Ends
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LOL
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Integrally Reinforced
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BGO
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Beveled Gear Operator
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Lateral Branch Connection
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BHN
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Brinnel Hardness Number
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( e.g.: laterolet )
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BLD
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Blind
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MATL
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Material
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BW
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Butt Weld
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MFG
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Manufacturer
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CI
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Cast Iron
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MI
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Malleable Iron
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CL
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Class
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MIN
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Minimum
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CPLG
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Coupling
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MO
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Molybdenum
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CPVC
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Chlorinated Polyvinyl Chloride
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MSS
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Manufacturer Standardization Society
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CR
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Chrome
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NIPP
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Nipple
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CS
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Carbon Steel
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NPS
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Nominal Pipe Size
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CONC
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Concentric
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PE
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Plain Ends
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CONN
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Connection
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PIP
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Process Industry Practice
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°
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Degree
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PROJ
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Projection
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DI
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Ductile Iron
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PTFE
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Poly Terta Fluor Ethylene
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DIA
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Diameter
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R
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Radius
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DIM
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Dimension
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RF
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Raised Face
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DSAW
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Double Submerged Arc Welded
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RTJ
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Ring Type Joint
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DWG
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Drawing
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SW
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Socket Weld
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EA
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Each
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SCH
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Schedule
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ECC
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Eccentric
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SCRD
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Screwed
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EFW
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Electric Fusion Welded
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SMLS
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Seamless
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ELL
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Elbow
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SOL
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Integrally Reinforced
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OL
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Integrally Reinforced
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Socketweld Branch Connection
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Elbow Branch Connection
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( e.g.: sockolet )
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( e.g.: elbolet )
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SR
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Short Radius
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SS
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Stainless Steel
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ERW
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Electric Resistance Welded
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STD
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Standard
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FF
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Flat Face
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TandC
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Threaded and Coupled
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FIG
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Figure
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TFE
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Tetra Fluor Ethylene
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FLG
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Flange
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THK
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Thickness
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FLGD
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Flanged
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THRD
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Threaded
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FRP
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Fiberglass Reinforced Pipe
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TOL
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Integrally Reinforced
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FS
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Forged Steel
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Threaded Branch Connection
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GALV
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Galvanized
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TSW
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Threaded x Socket Weld
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GJ
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Ground Joint
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TYP
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Typical
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GR
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Grade
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VA
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Valve
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GO
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Gear Operated
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VERT
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Vertical
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HAST
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Hastelloy
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WLD
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Weleded
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HEX
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Hexagonal
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WN
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Weld Neck
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HORIZ
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Horizontal
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WOL
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Integrally Reinforced
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INSUL
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Insulation
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Buttweld Branch
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JF
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Joint Factor
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WT
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Wall Thickness
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