Pipe Fittings & Piping Terms
Useful Abbreviations & Definitions
Below is a list of the most common abbreviations and terms found in the piping industry:
ACS:: Attestation de Conformité Sanitaire
AFS:: American Foundrymen's Society
AGA:: American Gas Association
AISI:: American Iron and Steel Institute
ANSI:: American National Standards Institute
API:: American Petroleum Institute
ASA:: American Standard Association
ASME:: American Society of Mechanical Engineers
ASTM:: American Society for Testing and Materials
AWWA:: American Water Works Association
BB:: Bolted Bonnet
BC:: Bolted Cap
BCD:: Bolt Circle Diameter
BCF:: Bead and crevice free
BFV:: Butterfly valve
BHN:: Brinell Hardness Number
BS:: British Standard
BSI:: British Standards Institution
BSP:: British Standard Pipe
BSPP:: British Standard Pipe Parallel
BSPT:: British Standard Taper Pipe Thread
BV:: Ball Valve
BW:: Butt Weld
BWE:: Butt Weld End
CDA:: Copper Development Association
CI:: Cast Iron
CSA:: Canadian Standards Association
CV:: Check Valve
CW:: Counter Weight
CWP:: Cold Working Pressure
CxC:: Cooper to Cooper
DAC:: Double Acting Cylinders
DD:: Double Disc
DEF:: Double Emboîtement Mâle
DG:: Double Disc Gate
DI:: Ductile Iron
DIN:: Deutsches Institute fuer Normung
DMV:: Distribution main valve
DN:: Nominal Diameter
DWV:: Drainage:: Waste:: Vent Fitting
ECV:: Emergency Control Valve
ESD:: Emergency Shut Down
FE:: Flanged End
FF:: Flat Face
FIV:: Formation Isolation Valves
FLG:: Flange
FM:: Factory Mutual Laboratories
FOB:: Free On Board
FTTG:: Fitting
FW:: Flexible Wedge
GLP:: Liquid Gas of Petroleum
GOST:: Gosstandart of Russia
GV:: Gate Valve
HB:: Brinell Hardness
HBC:: Rockwell C Hardness
HF:: Hard Faced
HW:: Handwheel
IBBM:: Iron Body Bronze Mounted
ID:: Inside Diameter
IPS:: Iron Pipe Size
ISA:: Instrument Society of America
ISNRS:: Inside Screw Non-Rising Stem
ISO:: International Organization for Standardization
ISRS:: Inside Screw Rising Stem
JIS:: Japanese Industrial Standard
MIV:: Main Inlet Valve
MJ:: Mechanical Joint
MSS:: Manufacturers Standardization Society
MTR:: Material Test Report
NC:: Normally closed
NEMA:: National Electrical Manufacturers Association
NPS:: Nominal Pipe Size
NPT:: National Pipe Taper (Pipe Thread)
NRS:: Non-Rising Stem
OD:: Outside Diameter
OS&Y:: Outside Screw and Yoke
OWG:: Working Pressure: Oil, Water, Gas
QO:: Quick opening
PCD:: Pitch Circle Diameter
PIV:: Post indicator valve
PN:: Nominal Pressure (metric)
P-T:: Pressure - Temperature
PRV:: Pressure Reducing Valve
PVF:: Pipes:: Valves and Fittings
Rc:: Rockwell "C"
RF:: Raised Face
RJ:: Ring Type Joint
RS:: Rising Stem
RWD:: Resilient Wedge Disc
SAC:: Simple Acting Cylinder
SB:: Screw-In-Bonnet
SB:: Silver Brazed
SE:: Screwed Ends
SE:: Solder End
SG:: Solid Gate
SIV:: Service isolation valve
SJ:: Solder Joint
SOV:: Shut Off Valve
SPW:: Spiral Wound gasket
SS:: Stainless Steel
STD:: Standard
SW:: Solid Wedge Disc
SWE:: Socket Weld End
SWP:: Steam Working Pressure
TB:: Threaded Bonnet
TE:: Threaded End
TC:: Threaded Cap
TOR:: Tout Ou Rien
UB:: Union Bonnet
UC:: Union Cap
UL:: Underwriter's Laboratories
WV:: Water valve
WOG:: Working Pressure: Water, Oil, Gas
WSP:: Steam Working Pressure
WWP:: Water Working Pressure