LIST OF ABBREVIATIONS
Globe Valves Gate Valves Check Valves Ball Valves Butterfly Valves Below Seal Valves Steam Traps Control Valves Safety Relief Valves Pressure Relief Valves Cryogenic Valves HF Acid Valves Specialized Pipes Specialized Fittings Specialized Flanges & Forgings Specialized Fasteners & Gaskets
1)FLANGE FACING
RF Raised Face
RTJ Ring Type Joint
FF Flat Face
2)FITTINGS
TE Threaded End
TLE Threaded Large End (Swage Nipple)
TSE Threaded Small End (Swage Nipple)
TBE Threaded Both End (Nipple)
ISS Integral Steel Seat (Unions)
SET Small End Threaded
LET Large End Threaded
TOE Threaded One End
LEB Large End Bevel
LEP Large End Plain
SEB Small End Bevel
SEP Small End Plain
LR Long Radius (Elbow)
SR Short Radius (Elbow)
3)CONNECTIONS
BW Butt Weld
PE Plain End
BW-WELD Butt Weld
SW-SOCW Socket Weld
FLGD Flanged
WN Welding Neck
TH Threaded
SO Slip-on
4)WALL THICKNESS
SCH. Schedule in acc. with ASME/ANSI B36.10 or B36.19
STD.WT. Standard Weight (Equals Sch. 40 up to 10”)
XS Extra Heavy Weight (Equals Sch. 80 up to 8”)
XXS Double Extra Heavy Weight
CALC Calculated Wall
5)VALVE DESCRIPTION
OS & Y Outside Screw & Yoke
IS Inside Screw
RS Rising Stem (with inside screw)
NRS Non-Rising Stem (with inside screw)
UB Union Bonnet
BB Bolted Bonnet
UC Union Cap
SC Screwed Cap
BC Bolted Cap
CHOP Chain Operator
ES Extension Stem
RB Reduce Bore
FB Full Bore
WB Welded Bonnet
IBBM Iron Body Bronze Mounted
GO Gear Operated
OH Open Hearth
ERW Electric Resistance Welded
T & C Threaded and Coupled
EFW Electric Fusion Welded
SMLS Seamless
PE Plain End
BE Beveled End
SAW Submerged Arc Welded
Blogs
