AFFF

Information about AFFF

Published on November 6, 2007

Author: lawson

Source: authorstream.com

Content

AFFF FIREFIGHTING SYSTEMS:  AFFF FIREFIGHTING SYSTEMS AFFF SYSTEMS:  AFFF SYSTEMS HIGH CAPACITY SYSTEMS AFFF FACTS:  AFFF FACTS CLEAR TO SLIGHTLY AMBER APPEARANCE INDEFINITE SHELF LIFE STORE AT TEMPERATURES >320F (if AFFF freezes, it may be used after thawing) 94% WATER / 6% FOAM MIX AFFF FACTS:  AFFF FACTS MIXES WITH WATER TO FORM AN AQUEOUS FILM WHICH EXCLUDES OXYGEN FROM THE SURFACE OF THE FUEL COOLS DUE TO WATER CONTENT EXCELLENT PENETRATING CHARACTERISTICS / SUPERIOR TO WATER ON CLASS “A” FIRES AFFF FACTS:  AFFF FACTS GENERAL PRECAUTIONS AFFF IS EXTREMELY CORROSIVE ENSURE SYSTEM IS PROPERLY ALIGNED FOLLOWING EACH USE AVOID INADVERTENT CONTACT WITH ELECTRICAL EQUIPMENT WHEN SYSTEM MAINTENANCE IS BEING PERFORMED ENSURE YOU ARE KEPT ABREAST OF FIRE FIGHTING CAPABILITY AFFF FACTS:  AFFF FACTS GENERAL PRECAUTIONS SOME FORMATION/COLLECTION OF H2S MAY OCCUR IN PIPING/AREAS WHERE AFFF STANDS STAGNANT FOR A PERIOD OF TIME, PARTICULARLY IN THE BALANCED PROPORTIONING SYSTEM AFFF SYSTEM COMMON ITEMS:  AFFF SYSTEM COMMON ITEMS OVERBOARD DISCHARGE REQUIREMENTS <3 NM FROM LAND - NO OVERBOARD DISCHARGE 3 - 12 NM FROM LAND - DISCHARGE PERMITTED IF SHIP SPEED IS 10 KTS OR HIGHER >12 NM FROM LAND - DISCHARGE AS REQUIRED AFFF SYSTEM COMMON ITEMS:  AFFF SYSTEM COMMON ITEMS DC DECK RE-ENTRY HOSE REELS 125’ NON COLLAPSIBLE RUBBER HOSE WITH 11/2 INCH 95 GPM VARI NOZZLE (100’ ON MHC) HOSE REEL CUTOUT VALVE NORMALLY CLOSED AFFF SYSTEM COMMON ITEMS:  AFFF SYSTEM COMMON ITEMS ENGINEERING SPACE HOSE REELS 50’ NON COLLAPSIBLE RUBBER HOSE WITH 11/2 INCH 95 GPM VARI NOZZLE HOSE REEL CUTOUT VALVE LOCKED OPEN. AFFF SYSTEM COMMON ITEMS:  AFFF SYSTEM COMMON ITEMS ENGINEERING SPACE HOSE REELS 27 LB PORTABLE PKP CYLINDER LOCATED NEAR EACH AFFF HOSE REEL AFFF SYSTEM COMMON ITEMS:  AFFF SYSTEM COMMON ITEMS SERVICE VALVE TEST CASTING ALLOWS FOR TESTING OF BILGE SPRINKLING SYSTEM WITHOUT SPRINKLING THE BILGES AFFF CONCENTRATE TANKS MANUFACTURED FROM 9010 CUNI OR STAINLESS VENT/VACUUM BREAKER .05PSIG/.05”Hg Slide12:  SERVICE VALVE TEST CAST FITTING INLET CHAIN INLET CAP TEST CONNECTION TEST FITTING BILGE SPRINKLING SERVICE VALVE AFFF SYSTEM COMMON ITEMS:  AFFF SYSTEM COMMON ITEMS PLANNED MAINTENANCE DAILY INSPECTION OF VALVE ALIGNMENT AND FLUID LEVELS MONTHLY PUMP MAINTENANCE CHECKS SEMI ANNUAL CHECK FOR SEAWATER CONTAMINATION AFFF SYSTEM COMMON ITEMS:  AFFF SYSTEM COMMON ITEMS PLANNED MAINTENANCE SEMI ANNUAL SYSTEM OPERATION CHECK FROM ALL REMOTE LOCATIONS ANNUAL FOAM ANALYSIS NUMEROUS SITUATIONAL REQUIREMENTS FIXED EDUCTOR SYSTEM:  FIXED EDUCTOR SYSTEM HIGH POINTS FOUND ON MHC / MCM MCM FORWARD TANK CAPACITY 50 GL AFT TANK CAPACITY 200 GL MHC TANK CAPACITIES 75 GL FWD / AFT FIXED EDUCTOR SYSTEM:  FIXED EDUCTOR SYSTEM TANKS ARE REFILLED VIA GRAVITY FROM STORAGE TANK LOCATED NEAR STACKS PMS CHECK FOR AFFF CONCENTRATE SEAWATER CONTAMINATION IS DONE QUARTERLY OVERHEAD SPRINKLERS INSTALLED IN MHC CLASS SHIPS Slide17:  BPPS AFFF System Slide18:  2 SPEED INJECTION SYSTEM AFFF FILL CONN OPTIONAL AFFF FILL CONN LOW FLOW RATE DEMAND (WEAPON, ELEVATORS, PUMP ROOMS) POWERTROL W/ TEST CASTING HIGH FLOW RATE DEMAND (HANGAR SPRINKLER SYSTEM) MANUALLY OPERATED BUTTERFLY VALVE SEAWATER HUDRAULIC CONTROL LINES SOPV SOPV SOPV BUTTERFLY VALVE TO HOSE STATION OUTLETS VENT AFFF CONCENTRATE STORAGE TANK SUCTION LINE DRAIN AFFF CONCENTRATE TWO SPEED AFFF PUMP CONCENTRATE PRESSURE GAGE STRAINER BLOWDOWN SOPV HYCHECK SEAWATER HYDRAULIC CONTROL LINE RECIRC CUTOUT POWERCHECK CUTOUT FIREMAIN 2 SPEED INJECTION SYSTEM:  2 SPEED INJECTION SYSTEM HIGH POINTS PUMPS RATED AT 27/65 GPM @175 PSI 27 GPM - LOW FLOW RATE DEMAND USER (HOSE LINE, ELEVATOR SRINKLER, etc) 65 GPM - HIGH FLOW RATE DEMAND USER (HANGAR SPRINKLER, etc) POSITIVE DISPLACEMENT ROTARY VANE TYPE PUMP MOTOR CONTROLLER POWERED FROM ABT START LOCAL/ REMOTE. MUST BE STOPPED LOCALLY Slide20:  Single Speed Injection AFFF System 600 GALLON AFFF CONCENTRATE TANK MAIN DECK Slide21:  FLUSH DECK NOZZLES DECK EDGE NOZZLES PRESSURE SWITCHES POWERTROL TYPE VALVE FIREMAIN 03 DECK SOPV CHECK VALVE MAIN DECK TO TRANSFER SYSTEM ALTITUDE GAGE PUMP DISCHARGE GAGE AFFF PUMP 600 GALLON AFFF TANK VENT 2ND DECK HYDRAULIC CHECK VALVE SINGLE SPEED AFFF SYSTEM SINGLE SPEED AFFF SYSTEM:  SINGLE SPEED AFFF SYSTEM HIGH POINTS SERVICES HANGAR AND FLIGHT DECK AREAS, PUMP ROOMS FLUSH DECK NOZZLES DECK EDGE NOZZLES ELECTRIC PUSHBUTTON AT EACH HOSE OUTLET HIGH CAPACITY AFFF SYSTEM:  HIGH CAPACITY AFFF SYSTEM HIGH POINTS TYPES INSTALLED IN NAVY SHIPS BALANCED PRESSURE PROPORTIONER ELECTRIC 2 SPEED AFFF PUMP SYSTEM HIGH CAPACITY SINGLE SPEED PUMP SUMMARY:  SUMMARY FOAM GENERATING SYSTEMS 2 SPEED INJECTION SYSTEM HIGH CAPACITY SYSTEMS REVIEW QUESTION:  REVIEW QUESTION WHAT RULES APPLY WITH RESPECT TO THE DISCHARGE OF AFFF INTO THE SEA WHEN: INPORT / 3NM FROM LAND? PROHIBITED 3 -12 NM FROM LAND? IF SHIP SPEED IS > 10 KTS >12 NM FROM LAND? DISCHARGE AT WILL REVIEW QUESTION:  REVIEW QUESTION DESCRIBE THE ACTIVATION SEQUENCE IN A 2 SPEED INJECTION SYSTEM WHEN THE LOW FLOW RATE DEMAND CIRCUIT IS ENERGIZED. THE MASTER SOPV IS ENERGIZED, STARTING THE AFFF CONCENTRATE PUMP ON SLOW AND OPENING THE HYCHECK AND POWERCHECK VALVES AS WELL AS ENERGIZING THE SOPV FOR THE LOW FLOW RATE GROUP (MINUS HOSE REELS) REVIEW QUESTION:  REVIEW QUESTION WHAT ARE SOME OF THE DIFFERENT TYPES OF HIGH CAPACITY AFFF STATIONS? BALANCED PRESSURE PROPORTIONER 2 SPEED INJECTION SYSTEM SINGLE SPEED INJECTION SYSTEM INSTALLED FIREFIGHTING SYSTEMS:  INSTALLED FIREFIGHTING SYSTEMS

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