Attachment 4 - Drawings 07 Plumbing - Plumbing Abbreviations, Floor Plan Symbols, General Notes

Oct 24, 2026

Upload by dbqoiu

Plumbing reference material compiling abbreviations and common terminology used in construction drawings, along with plumbing floor plan symbol conventions. Includes a set of plumbing general notes directing installation compliance with the 2012 International Plumbing Code, coordination among architectural, structural, mechanical, electrical, plumbing, and fire protection documents, and handling specification conflicts before proceeding. Provides installation and verification requirements for drain and sanitary/storm piping slopes, cleanouts, tight routing through floors, and fire-stopping around penetrations, emphasizing coordination with other trades.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages7

Reading Time18 min

AccessFree to download

Plumbing Abbreviations

Plumbing Floor Plan Symbols

Plumbing General Notes

| | | | | | | | | | | | | | | | | | | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Plot Date: 1/3/2019 5:28:40 PM | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PLUMBING ABBREVIATIONS | | | | | PLUMBING FLOOR PLAN SYMBOLS | | | | | | | | | | | | PLUMBING GENERAL NOTES | | | | | | | | | | | A
ABBR
ADA
AFF
AG
AMB
ANSI
AP
APPROX
ABBREVIATION
AMERICANS WITH DISABILITIES ACT ABOVE FINISHED FLOOR
ABOVE GRADE
AMBIENT
AMERICAN NATIONAL STANDARDS INSTITUTE
ACCESS PANEL
APPROXIMATE
B BFP BACKFLOW PREVENTOR
(TYPE AS INDICATED)
BFV BUTTERFLY VALVE
BHP BRAKE HORSEPOWER
BLV BALANCING VALVE
BTU/H BRITISH THERMAL UNIT PER HOUR
BV BALL VALVE
C CA UTILITY COMPRESSED AIR
(PRESSURE AS INDICATED)
CAP. CAPACITY
CFM CUBIC FEET PER MINUTE
CI CAST IRON
CO CLEANOUT
COMP COMPRESSOR
COND CONDENSATE
CONT CONTINUATION
CV CHECK VALVE
CW COLD WATER
D DF DRINKING FOUNTAIN
DIA DIAMETER
DN DOWN
DOM DOMESTIC
DWH DOMESTIC WATER HEATER
DWG DRAWING
DWS (CHILLED) DRINKING WATER SUPPLY
DWR (CHILLED) DRINKING WATER RETURN
E
EA EACH
ECO EXTERIOR CLEANOUT
EEW EMERGENCY EYE WASH
EEW/ESH COMBINATION EMERGENCY EYE WASH/
EMERGENCY SHOWER
EEW/EFW COMBINATION EMERGENCY EYE WASH/
EMERGENCY FACE WASH EFF EFFICIENCY
EFW EMERGENCY FACE WASH
EL ELEVATION
EQ EQUIVALENT
ESH EMERGENCY SHOWER
ET EXPANSION TANK
ETP ELECTRONIC TRAP PRIMER
EWC ELECTRIC WATER COOLER
EWT ENTERING WATER TEMPERATURE
EXP EXPANSION
EXT EXTERNAL
(E) EXISTING MATERIAL OR EQUIPMENT
F
_°F DEGREES FAHRENHEIT
FCO FLOOR CLEANOUT
FD FLOOR DRAIN
FL FLOOR
FPM FEET PER MINUTE
FPS FEET PER SECOND
FS FLOORSINK
FT FOOT OR FEET
FTD FOOTER DRAINAGE
G G NATURAL GAS (PRESSURE AS
INDICATED)
GAL GALLON
GS GAS COCK
GPD GALLONS PER DAY
GPH GALLONS PER HOUR
GPM GALLONS PER MINUTE
GPR GAS PRESSURE REGULATOR
GV GATE VALVE
H
HB HOSE BIBB
HG MERCURY
HGT HEIGHT
HP HORSE POWER
HPCW HIGH PRESSURE DOM. COLD WATER
HPHW HIGH PRESSURE DOM. HOT WATER
(TEMP. 110° OR AS INDICATED) HPHWR HIGH PRESSURE DOM. HOT WATER
RETURN (TEMP. 110° OR AS INDICATED) HR HOUR | I
ID INSIDE DIAMETER
IE INVERT ELEVATION
IN. INCHES
K KW KILOWATTS
L LAV LAVATORY
LGT LENGTH
LPG LIQUID PETROLEUM GAS
LWT LEAVING WATER TEMPERATURE
M MAX MAXIMUM
MBH 1000 BTU/HR
MIN MINIMUM
MISC MISCELLANEOUS
MSB MOP SERVICE BASIN
MTG MOUNTING
N NA NOT APPLICABLE
N.C. NORMALLY CLOSED NIC NOT IN CONTRACT NO NITROUS OXIDE
N.O. NORMALLY OPEN NO. NUMBER
NOM NOMINAL
NTS NOTTO SCALE
O OD OUTSIDE DIAMETER
OFL OVERFLOW
ORD OVERFLOW ROOF DRAIN
OSD OPEN SITE DRAIN
P PC
PD
PDI
PH
PPM
PRESS.
PRV
PSI
PSIG
PV
PW
PUMPED CONDENSATE
PUMPED DISCHARGE (TYPE AS INDICATED)
PLUMBING DRAINAGE INSTITUTE PHASE (ELECTRICAL)
PARTS PER MILLION PRESSURE
PRESSURE REDUCING VALVE POUNDS PER SQUARE INCH
POUNDS PER SQUARE INCH-GAUGE PLUG VALVE
PROCESS WATER
Q QTY QUANTITY
R
RD ROOF DRAIN
REF REFERENCE
RECIRC RECIRCULATION
RL RELOCATED MATERIAL OR EQUIPMENT
RO REVERSE OSMOSIS SUPPLY
RPZ REDUCED PRESSURE ZONE
RV PRESSURE RELIEF VALVE
S
SAN
SCFM
SCW
SE
SG
SK
SH
SHW
SP
SPEC
SQ. FT.
SS
SSD
ST
STD
STM
SV
T SANITARY OR WASTE
STANDARD CUBIC FEET PER MINUTE SOFTENED COLD WATER
SEWAGE EJECTOR SPECIFIC GRAVITY SINK
SHOWER
SOFTENED HOT WATERSUMP PUMP SPECIFICATION SQUARE FEET STAINLESS STEEL SUB SOIL DRAINAGE STORM (RAINWATER) STANDARD
STEAM
SOLENOI

FAQs

What is included in the plumbing reference material?

It includes plumbing abbreviations, plumbing floor plan symbols, and a set of plumbing general notes for construction drawings.

Which code governs the plumbing installation requirements?

Installation must follow the 2012 International Plumbing Code and the regulations of all authorities having jurisdiction.

What are the key installation requirements for drainage piping slopes?

Sanitary and storm drainage piping 3 inches and larger must be installed at 1/8 inch per foot slope, and piping smaller than 3 inches at 1/4 inch per foot slope.

Oct 24, 2026

Upload by dbqoiu