ARFL: Valve - Angle Relief/Vent
AVFL: Valve - Angle
AXFL: Valve - Angle Pressure Reducing
BAFL: Block - Angle
BOFL: Block - Offset
BRFL: Block
C3FL: Valve - Three-Way Control
C4FL: Valve - Four-Way Control
CAFL: Valve - Angle Control
CEBW: Coupling - Elbolet (Butt Weld)
CESC: Coupling - Elbolet (Screwed)
CESW: Coupling - Elbolet (Socket Weld)
CHFL: Hose Coupling
CKFL: Valve - Check
COCP: Coupling - Compression
COSC: Coupling - Screwed
COSW: Coupling - Socket Weld
CPBW: Reducer - Concentric Fabricated from Plate
CPFL: Reducer - Concentric Fabricated from Plate (Flanged)
CSBW: Reducer - Concentric Swaged From Plate
CSFL: Reducer - Concentric Swaged From Plate (Flanged)
CTBW: Reducer - Concentric with a Connection (Butt Weld)
CTFL: Reducer - Concentric with a Connection (Flanged)
CTSC: Reducer - Concentric with a Connection (Screwed)
CTSW: Concentric with a Connection (Socket Weld)
CVFL: Valve - Control
CXBW: Reducer - Concentric with a Connection Swaged from Pipe
CXFL: Reducer - Concentric with a Connection Swaged from Pipe (Flanged)
CZBW: Reducer - Concentric with a Connection Fabricated from Plate
CZFL: Reducer - Concentric with a Connection Fabricated from Plate (Flanged)
DR: Rupture Disk
EPBW: Reducer - Eccentric Fabricated from Plate
EPFL: Reducer - Eccentric Fabricated from Plate (Flanged)
EPSW: Reducer - Eccentric Fabricated from Plate (Socket Weld)
ESBW: Reducer - Eccentric Swaged from Pipe
ESFL: Reducer - Eccentric Swaged from Pipe (Flanged)
EXBW: Reducer - Eccentric with a Connection Swaged from Pipe
EXFL: Reducer - Eccentric with a Connection Swaged from Pipe (Flanged)
EXFL: Expansion Bellows
EZBW: Reducer - Eccentric with a Connection Fabricated from Plate
EZFL: Reducer - Eccentric with a Connection Fabricated from Plate (Flanged)
FAFL: Filter/Strainer - Angle
FIFL: Filter/Strainer - Straight Through
FLBL: Flange - Blind
FLFL: Flange - Flared/Loose Backing
FLLB: Flange - Backing
FLOW: Flow Arrow
FLRC: Flange - Reducing Concentric
FLRE: Flange - Reducing Eccentric
FLRG: Lap Joint - Ring Loose
FLSC: Flange - Screwed
FLSE: Lap Joint - Stub End Loose
FLSJ: Flange - Slip On with J-type Weld
FLSO: Flange - Slip On
FLSW: Flange - Socket Weld
FLWN: Flange - Weld Neck
FOFL: Filter/Strainer - Offset
FOSO: Flange - Orifice (Slip On)
FOWN: Flange - Orifice (Weld Neck)
FPPL: Fixed Length Pipe - Without Flanged Ends
FRFL: Filter/Strainer - Return
FTFL: Flame Trap
FXFL: Filter/Strainer - Return
H3FL: Valve - Three-Way Control (Hand Indicator)
H4FL: Valve - Four-Way Control (Hand Indicator)
HAFL: Valve - Angle Control (Hand Indicator)
HCSC: Olet - Half Coupling (Screwed)
HCSW: Olet - Half Coupling (Socket Weld)
HVFL: Valve - Control Hand Indicator
IAFL: Instrument - Angle
IDFL: Instrument - Dial (Flanged)
IDPL: Instrument - Dial
IIFL: Instrument
IOFL: Instrument - Offset
IRFL: Instrument - Return
ITFL: Instrument - Tee
KABW: Cap - Butt Weld
KACP: Cap - Compression
KASC: Cap - Screwed
KASW: Cap - Socket Weld
LABW: Olet - Latrolet (Buttweld)
M3FL: Valve - Three-Way Control (Motorized Indicator)
M4FL: Valve - Four-Way Control (Motorized Indicator)
MAFL: Valve - Angle Control (Motorized Indicator)
MVFL: Valve - Control (Motorized Indicator)
NBSC: Nipple - Screwed
NCFL: Non-Category Item
NIPL: Olet - Nipolet (Plain End)
NISC: Olet - Nipolet (Screwed)
NRSC: Nippled - Screwed
OP: Orifice Plate
OTBW: Reducer - Eccentric with a Connection (Butt Weld)
OTFL: Reducer - Eccentric with a Connection (Flanged)
OTSC: Reducer - Eccentric with a Connection (Screwed)
PF: Pipe Block - Fixed Length
PL: Plug
PR: Restrictor Plate
PV: Pipe Block - Variable Length
RAFL: Valve - Angle (Relief/Vent)
RBSC: Reducer - Concentric (Screwed Bush)
RBSW: Reducer - Concentric (Socket Weld)
RCBW: Reducer - Concentric (Butt Weld)
RCCP: Reducer - Concentric (Compression)
RCFL: Reducer - Concentric (Flanged)
RCSC: Reducer - Concentric (Screwed)
RCSW: Reducer - Concentric (Socket Weld)
RD: Rupture Disk
REBW: Reducer - Eccentric (Butt Weld)
REFL: Reducer - Eccentric (Flanged)
RESC: Reducer - Eccentric (Screwed)
RF: Reducer - Special Reducing Flange
RFPL: Reducer - Connection Block
RNSC: Reducer - Concentric (Nipple)
RP: Restrictor Plate
RVFL: Valve - Relief/Vent
S3FL: Valve - Three-Way Control (Square Indicator)
S4FL: Valve - Four-Way Control (Square Indicator)
SAFL: Valve - Angle Control (Square Indicator)
SB: Spectacle - Blind
SGFL: Sight Glass
SKSW: Olet - Sockolet
SP: Slip Plate
SR: Slip Ring
SVFL: Valve - Control (Square Indicator)
SWBW: Olet Sweepolet
TAFL: Trap - Angle
THSC: Olet - Thredolet
TIFL: Trap - Inline Straight Through
TOFL: Trap - Offset
TRFL: Trap - Return
TUFL: Tundish (Funnel)
UNSC: Union - Screwed
UNSW: Union - Socket Weld
V3FL: Valve - Three-Way
V4FL: Valve - Four-Way
VBFL: Valve - Ball
VCFL: Valve - Check
VDFL: Valve - Diaphragm
VGFL: Valve - Globe
VKFL: Valve - Cock
VNFL: Valve - Needle
VPFL: Valve - Plug
VRFL: Valve - Relief/Vent
VSFL: Valve - Slide
VTFL: Valve - Gate
VVFL: Valve - Basic
VXFL: Valve - Pressure Reducing
VYFL: Valve - Butterfly
WTBW: Olet - Weldolet
XAFL: Valve - Angle (Pressure Reducing)
XVFL: Valve - Pressure Reducing
01HG: Support/Hanger
01SP: Used on valves with AV, V3, V4, VD, VG, or VV as the first two characters of their SKEYs
02SP: Used on valves with AR, RA, VR as the first two characters of their SKEYs.
03SP: Used on valves with VB, VK, VY as the first two characters of their SKEYs.
04SP: Not Used
05SP: Used on valves with VT as the first two characters of their SKEYs.
06SP: Used on valves with VN as the first two characters of their SKEYs.
07SP: Used on valves with VP as the first two characters of their SKEYs.
08SP: Used on valves with VS as the first two characters of their SKEYs.
09SP: Used on valves with AX, VX, or XA as the first two characters of their SKEYs.
10SP: Used on valves with SA, SV, S3, or S4 as the first two characters of their SKEYs.
11SP: Used on valves with MA, MV, M3, or M4 as the first two characters of their SKEYs.