Abbreviations used in Firefighting drawings

 الاختصارات المستخدمة في مخططات  اعمال مكافحة الحريق

- Dear www.learningmep.com follower you will find that the letters arranged from A to z and inside each letter you will find that the abbreviations also arranged from A to Z , to help you easy search about any abbreviation you need related to plumbing works.

Letter A




AAC= Fire Alarm Check Valve
AAV= Automatic Air Vent
AN= Pipe Anchor
AH= Anti Hear By pass 

Letter B
B/G=Blow Grade
BL=Branch Line
BP=Booster Pump
BFV= Butter Fly Valve 

Letter C

Letter I

CP= Circulating Pump


CR= Concentric Reducer 

C/S=Ceiling Space 

Letter D

DN = Down

DRG.= Drawing 

Letter E

EJ= Expansion Joint

ER = Eccentric Reducer

EWH=Electric Water Heater


Letter F

F = Filter 

F = Flexible connection

FAG=Fire Alarm Gang

F/A= From Above

F/B= From Below

Fc = Flexible  Connector

Fc = Fire  Cabinet

F/C= False Ceiling

FBFH=Fire Bridge Fire Hydrant

FBM=Fire Bridge Main

FCV=Floor Control Valve

FHM=Fire Hydrant Main

FEC=Fire Extinguisher Cabinet

FDC=Fire Department Connection 

FFL = Finish Floor Level

FH=Fire Hydrant

FHC=Fire Hose Cabinet

FHR=Fire Hose Reel/Rack

 FS = Flow Station

 FS = Flow Switch

FP = Fire Pump

Letter G

GPM = Gallon Per Minute 

GV = Gate Valve

Letter H

H/L=High Level

HV=Hand Valve

Letter I

ICV= Installation Control Valve

IL= Invert Level

Letter J

JP= Jockey Pump

Letter K

KW= Kilo Watt

Letter L

LL = Low Level 

Letter M

MAX= Maximum

 MECH.= Mechanical

MH= Manhole

MIN= Minimum

Letter N

NTS=Not To Scale 

NRV= Non Return Valve

Letter O


OS & Y = Outside Screw & Yoke Valve  

Letter P

PG= Pressure Gague 

PRV=Pressure Relief Valve

PS=Pressure Switch

PS=Pendant Sprinkler


Letter Q

QR=Quick Response

Letter S

SM=Sprinkler Main

SP=Sump Pump

SR=Standard Response

SS = Side Sprinkler

 STR=Strainer 

 S.S.F.S= Standard Sidewall Fire Sprinkler

E.S.F.S= Extended Sidewall Fire Sprinkler


Letter T

T/A=To Above

T/B=To Below

TV=Test  Valve

TDV=Test Drain Valve


Letter U

UN= Union

US=Upright Sprinkler

Letter W

WRP= Wet Riser Pipe

WFAS= Water Flow Alarm Switch


Letter Z

ZCU= Zone Control Unit