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Download S-12 CITYWIDE SPRINKLER SYSTEMS, S12 Sprinkler Test Spring 2025. and more Exams Operating Systems in PDF only on Docsity!
Page 1 THE, IS RESPONSIBLE TO MAINTAIN SPRINKLER SYS. AND TO DETERMINE QUALIFICATIONS. -answers>OWNER RECORDSOFALLINSPECTIONSAND MXSHALLBE MAINTAINEDONPREMISESFORAMIN. OF YEARS. -answers>3 THE BUILDING OWNER SHALL ASSIGN A(N). TOCOMPLY WITHREQUIREMENTS.- answers>IMPAIRMENT COORDINATOR REGULAR MXAND MINOR REPAIRS NOT AFFECTING MORE THAN FLOOR(S) ARE CONSIDERED PLANNED REMOVALFROM SERVICE. - answers>1 SHUTDOWNS AFFECTINGMORE THAN. FLOOR(S) ARE CONSIDERED UNPLANNED OUT OF SERVICE CONDITIONS. - answers>1 NOTIFICATION TOFDNYISNOTREQUIRED, PROVIDED SYSTEMISRETURNED TOSERVICE WITHIN HOURS. -answers>8 FORUNPLANNEDREMOVALFROMSERVICE, THECOFHOLDERSHALLIMMEDIATELYREPORT CONDITIONTOTHE. ANDTHE FIRE DEPT.-answers>OWNER OF THE BUILDING IFAMINORDEFECTISOBSERVED, ITSHALL BECORRECTEDWITHIN. DAYSORIT WILL BE CONSIDERED AN IMPAIRMENT. -answers>30 WHATDOES"OOS"STANDFOR?-answers>OUT OF SERVICE . OOS SYSTEMS SHALL BE IDENTIFIED BY PLACING, ATFIRE DEPT. CONNECTIONS, SYS. CONTROL VALVES, AND FIRE COMMAND CENTER - answers>TAGS 14 16. 20. 21 Page 2 A SHALLBEREQUIRED TOPOST TAGSATMAINCONTROL VALVEANDANY SECTIONAL VALVES.-answers>MASTERFIRE SUPPRESSIONPIPING CONTRACTOR SHALLBEPOSTEDONTHETAGINDICATINGBOTHSTATICANDFLOWPRESSURES BEFORE AND AFTER. -answers>DRAIN TEST RESULTS . GREENTAGS INDICATE THAT, -canswers>NO IMPAIRMENT WAS FOUND . GREEN TAGS WILLBE PLACED ONTHE .-answers>MAIN CONTROL VALVE . SYSTEMS PARTIALLYORFULLYOUTOFSERVICESHALLHAVEA, TAGPLACEDON THE MAIN CONTROL VALVE. - answers>RED A DISCOF8-9INCHES SHALLBEPLACEDONCONNECTIONSTOINDICATETHESYSTEM IS FULLY OUT OF SERVICE. - answers>WHITE JA DISCOF8-9INCHESSHALLBEPLACED ONCONNECTIONSTOINDICATETHESYSTEM IS PARTIALLY OUT OF SERVICE. - answers>BLUE - THE IMPAIRMENT COORDINATOR WILL NOTIFY THE CARRIER, CENTRAL STATION AND OCCUPANTS. -answers>INSURANCE . PRIORTORETURNINGASYS. TOSERVICE, THE SHALLENSURE THATNECESSARY TESTSANDINSPECTIONSARECONDUCTED.-answers>IMPAIRMENTCOORDINATOR GLYCERINNOT GREATERTHAN PERCENT OR GLYCOL NOT GREATHER THAN PERCENT SHALL BE USED TO PROTECT FROM FREEZING. - answers>50, 40 . THECOF NUMBERAND SIGNATURE OF COF HOLDER SHALL BE POSTED NEAR THE .- answers>MAIN CONTROL VALVE 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. Page 4 DRYPIPEVALVESARE OF A DESIGN. - answers>CLAPPER DRY PIPEVALVESAREUSUALLYSETAT. PSI ABOVE THE NORMAL TRIPLEVEL. - answers>15-20 ANACCELERATORAND EXHAUSTERAREUSEDTO. THE TIME TO ALLOW WATERINTO THE SYSTEM. - answers>REDUCE BOTHACCLERATORAND EXHAUSTERAREACTIVATED WHENADROPOF. PSIIS DETECTED INTHE SYSTEM. - answers>2 INAPREACTION SYSTEM, THE ISOPENED BEFORE THE SPRINKLERHEADS. - answers>PREACTION VALVE PREACTION SYSTEMALARMSARE GIVENASSOONAS THE. IS OPENED. - answers>VALVE THREE DEVICES USED TO TRIP PREACTION VALVES ARE FIXED TEMP DEVICES, RATE DEVICES,AND DEVICES. -answers>COMBINATION THE. FEATURESHUTSOFF WATERWHENTHEFIREISEXTINGUISHEDANDTURNSON AGAINIF THE FIRE REKINDLES. - answers>RECYCLING THE. INTHE DELUGE SYSTEMARE OPENATALL TIMES. -answers>SPRINKLERHEADS SYSTEMS ARE USUALLY FOUND IN BASEMENTS OR OTHER DIFFICULT TO REACH AREAS. - answers>PERFORATEDPIPE NOZZLES AREUSED FOR TRANSFORMER VAULTSAND OTHER HAZARDOUS AREAS.- answers>OPEN-FIXED 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. Page 5 EXTERIOR EXPOSURE SPRINKLERS USE OPEN SPRINKLER HEADS TO FORMA. ON THE WALL OF A BUILDING. - answers>WATER CURTAIN SYSTEMSAREUSEDFORTHEPROTECTIONOFSPECIALHAZARDOUSOCCUPANCIES.- answers>FOAM SUPPLY THE COF HOLDER SHALL KNOW THE LOCATION OF ALL SPRINKLER HEADS, CONTROL VALVES, SUPPLY LINESAND. ROOMS. -answers>COMPACTOR ASIGN INDICATING THE LOCATION OF ALL. SHALLBEKEPTINTHECOMPACTORROOM.- answers*CONTROL VALVES ALLINDICATING VALVES IN THE COMPACTORSPRINKLERSYSTEM SHALLBE. OPEN. - answers>SEALED A MINIMUM OF. EXTRA SPRINKLER HEADS WITH THE APPROPRIATE WRENCHES SHALL BE AVAILABLE TO REPLACED DAMAGED ONES - answers>6 THECOFHOLDERSHALLCONDUCTANINSPECTION OF THEENTIRESPRINKLERSYSTEMATLEAST .- answers>ONCEA MONTH AUTOMATICBALL DRIP DEVICES SHALL BE INSTALLED INTHE. POSITION. - answers>HORIZONTAL IF THESPRINKLERSYS.ISSUPPLIEDFROM PUBLIC WATERMAIN, THECONTROLVALVESIGNMAY READ. - answers>"SHUTOFF FOR SPRINKLER SYS. LOCATED 6 FEET FROM THIS SIGN" GATEVALVESOF THENON-INDICATINGTYPEARECALLED. -- answers>CURB VALVES INANOUTSIDE STEMAND YOLK VALVE (OS&Y), VALVE POSITION IS INDICATED BY THEPOSITION OFTHE. .-answers>STEM 66. 67. 68. 69. 70. 71 72: 73. 74. 75. 76. Page 7 SPRINKLERS MANUFACTURED AFTER 1/1/2000 ARE REQUIRED TOHAVEA, answers>SPRINKLER IDENTIFICATION NUMBER (SIN) SPRINKLERS HAVE BEEN RECALLED. -answers>CYCLING SPRINKLER HEADSEXPOSED TO. CONDITIONSARE OFTENCOVEREDWITHACOAT OF WAX, OR LEAD. -answers>CORROSIVE ATADISTANCE OF 4FEETBELOW THE DEFLECTOR, THE SPRAY PATTERNCOVERSADIAMETEROF FEET WHEN DISCHARGING AT 15 GPM. - answers>16 LARGE DROP SPRINKLER HEADS ARE USED TO BREAK THROUGHTHE STRONG. OF HIGH CHALLENGE FIRES. -answers>UPDRAFTS . IFAFIREHASBEENCOMPLETELY EXTINGUISHED, THE. OR THEIRREPRESENTATIVE MAY CLOSE THE CONTROL VALVE. - answers>BUILDING OWNER BUILDUP OF FOREIGN MATERIALS ON SPRINKLERHEADSIS COMMONLY CALLED. - answers>LOADING SPARE SPRINKLERS SHALL BE KEPT AT THE FACILITY WHEN THE TEMPERATURE DOESNOT EXCEED .- answers>100 DEGREES FAHRENHEIT FACILITIES WITH LESS THAN 300 SPRINKLERS REQUIRE. SPARESTOBE AVAILABLE. - answers>6 FACILITIES WITH301-1000SPRINKLERSREQUIRE, SPARESTOBEAVAILABLE. - answers>12 FACILITIES WITH OVER 1000 SPRINKLERS REQUIRE. SPARES TOBE AVAILABLE.- answers>24 77. 78. 79. 80. 81. 82. 83. 84. 85. 86. 87. 88. Page 8 PRESSURE TANK TEMPERATURES SHALL BE KEPT ATOR ABOVE. . -answers>40 DEGREES FAHRENHEIT THEMAXIMUMGROSS CAPACITY OF PRESSURE TANKSIS, GALLONS. -answers>9000 PRIMARY WATERPRESSURE TANKSSHALLBEEQUIPPEDWITHTWO. - answers>HIGH AND LOW ALARM SYSTEMS PRESSURE TANKS MAY BE SUPERVISED BY AN APPROVED. COMPANY WHICH MONITORSTHEENTIRESPRINKLERSYSTEM.-answers>CENTRALSTATION TANKSAREMADEOFWOOD,STEEL,ORCONCRETE.-answers>GRAVITY GRAVITY TANKS SHOULD BEATLEAST. FEET ABOVE THE HIGHEST LINE OF SPRINKLER HEADS. - answers>25 FOREVERY 1 FOOT THE TANKISABOVE THE DISCHARGE OUTLET. PSIOF PRESSURE IS GENERATED. - answers>0.433 AUTOMATIC FILL PUMPS FILL THE TANK ATA RATE OF. GPMORMORE.-answers>65 THE. TURNONTHE FILL PUMP WHEN THE WATERIN THE TANKIS TOOLOW.- answers>FLOATS SOMEMETHODSTOPREVENTICEINSIDEAGRAVITY TANKARE, : answers>CIRCULATED HOT WATER, STEAM, STEAM COILS, AND SUN HEAT THEMAINREASONASPRINKLERSYS. SUPPLIED BYAGRAVITY TANKFAILSIS. answers>NOT ENOUGH WATER IN THE TANK THE PUMPISTHESTANDARDPUMP CURRENTLY USEDINFIREPROTECTION SYSTEMS. -answers>CENTRIFUGAL Page 10 100. SHALLNOTBE USED TOFASTENTHESYSTEMOR BUILDING ATTACHMENTS TO THE STRUCTURE. - answers>NAILS 101. VISUAL INSPECTION OF HANGING AND BRACINGIS NOT REQUIRED FORPIPING CONCEALEDABOVE .-answers>CEILINGS 102. LINES ARE DIRECTLY CONNECTED TO SPRINKLER HEADS. - answers>BRANCH 103. AREABLETOSUPPLY FEED MAINS ORCROSS MAINS DIRECTLY. - answers>RISERS 104. STANDARD STEEL PIPEWITH DIAMETERS OF 1-1/4 INCH REQUIREHANGERS TOBE PLACED. FEET APART. -answers>12 105. FORPIPEOTHERTHAN 1-1/4, THEMAXIMUMDISTANCEBETWEENHANGERSIS FEET. -answers>15 106. CPVC PIPEHANGER SPACE FOR3/4INCHPIPEIS. .-answers>5FT6IN 107. CPVC PIPEHANGERSPACEFORSINCHPIPEIS. FEET. - answers>10 108. THE DISTANCE FROM A HANGER ASSEMBLY TO THE CENTERLINE OF A SPRINKLER HEAD SHALL NOTBELESS THAN, -- answers>3 INCHES 109. SYSTEMSABOVE PSI HAVE DIFFERENT SUPPORT REQUIREMENTS. - answers>100 110. NYCBUILDINGCODEREQUIRES SWAY BRACING FORSPRINKLERSYS. INSTALLEDAFTER . -answers>1998 Page 11 1111, MINIMUM SIZE HANGER RODS FOR PIPE DIAMETER UP TO4 INCHES: answers>3/8 112. MINIMUM SIZE HANGER RODS FOR PIPE DIAMETER OF 5-8 INCHES: : answers>1/2 113. MINIMUM SIZE HANGER RODS FOR PIPE DIAMETER OF 10-12 INCHES: - answers>5/8 114. THEINSIDE OF PRESSURE TANKS SHALL BE INSPECTED CAREFULLY EVERY YEARS. - answers>3 115. WHEN INSPECTING PRESSURE TANKS, THE COMPRESSOR SHALL BE CAPABLE OF PRESSURIZING TO. PSI WITHIN 3 HOURS ORLESS. - answers>75 116. PUMPS SHOULD BE ACTIVATED EACHWEEKAND RUN FOR MINUTES IN ACCORDANCE TOTHE MANUFACTURERS SPECIFICATIONS. - answers>10 11%: INSTALLATIONS THAT DON'T APPEAR CORRECT INCLUDE SPRINKLER HEADS LOCATED MORE THAN. INCHES BELOW THE CEILING. - answers>22 118. THEPRESENCE OF OBSTRUCTIONSINSPRINKLER SYSTEMS SHALLBECHECKEDEVERY YEARS. - answers>FIVE 119. WHENTUBERCULESAND SLIMEAREFOUNDTHEY SHALLBE TESTEDFOR - answers>MICROBIOLOGICALLY INFLUENCED CORROSION 120. firedepartmentconnection-answers>normallyonexteriorofbuilding...FDNYcan pump supplemental water into the sprinkler system, standpipe, or other system furnishing water for fire extinguishment to supplement existing water supplies. 121. system control valve -answers>valve controlling flowto water-based fire protection systems. Page 13 132. Earlysuppresionfastresponsesprinklers-answers>fastresponsesprinklerthatislisted forits capability to provide fire suppression of specific high challengefire hazards 133. extralarge orifice sprinklers -answers>=or>1inchlesspressuretoachieveagiven discharge density 134. extended coverage sprinkler-answers>400 max square feetdischarge 20 footby 20foot spacing between sprinklers 135. fire pump - answers>a provider of liquid flow and pressure dedicated to fire protection. Afirepumpisapartofafiresprinklerssystemwatersupplyandcanbepoweredbyelectric, diesel or steam. connected to public water source or tank. provides higher pressure to sprinkler system 136. Glass bulb sprinkler- answers>operated by heatbreakinga glass bulb filled withanon freezing liquid with diametersthat vary form 3mm forquickresponseto5 mmforstandard response 137. hose valve - answers>valve to additional hose connection 138. hydraulicplacard-answers>signattachedtoahydraulicallycalculated sprinklersystem indicating the design density, required gallons per minute and pressure for the system to operate properly 139. hydraulicallycalculatedsystems-answers>methodofsizingautosprinklerpipingusinga prescribed amount of water to be distributed over a specific area. 140. impairmentcoordinator-answers>inchargeofsafetyduring outofservicesystems 141. intermediate level sprinkler - answers>sprinkler equipped with integral shieldsto protectthe operating elemtn form discharge from sprinklers installed at higher elevations Page 14 142. large orifice sprinkler- answers>sprinkler head with orifice size equal or greaterthan 3/4 and less than 1 inch 143. listed device - answers>A fire protection component that has been tested to perform under parameters specified forits use by anationally recognized testing agency. Underwriter's Laboratory (UL) and Factory Mutual (FM) are the two most common. 144. Master Pressure Reducing Valve - answers>A pressure reducing valve installed to regulatepressuresinanentirefireprotectionsystemand/orstandpipesystemzone. 145. Main Drain- answers>The primary drainconnectionlocatedonthesystemriserandalso utilized as a flow test connection. 146. Microbiologically|nfluencedCorrosion(MIC)-answers>Corrosioncausedbythe presenceofmicrobesinthewatersupplythatovertimeattacktheinteriorofmetallicpipingand cause leaks, pitting, and blockages. 147. ConventionalSprinkler-answers>Asprinklerthatdirects40%to60%ofthewater initiallyinadownwarddirectionandisdesignedtobeinstalledwiththedeflectorineitherthe upright or pendentposition. 148. PendentSprinkler-answers>Asprinklerdesignedtobeinstalledinsuchaway thatthe water stream is directed downward against the deflector. 149. PintleScrews-answers>Avisualindicatingdevicerequiredforsprinklers manufactured prior to 1999 identifying small orifice sprinklers and large orifice sprinklers where orifice size is different than the nominal thread size of the sprinkler head. 150. PipeSchedule Systems-answers>Amethodofsizingpiping based uponthe numberof sprinkler heads and the occupancy of the protected area. 15s Preaction Sprinkler System - answers>A sprinkler system employing automatic sprinklers thatareattachedtoapiping systemthatcontains airthatmayormaynotbeunder pressure, with asupplemental detection system installedinthesame areasas the sprinklers. Page 16 162. SolderLink Sprinkler-answers>Asprinkler operated by the melting ofa metallink, they varyinsize and configuration for quickresponse and standard response sprinklers. Thesmaller the size of the link, the faster the sprinkler operates. 163. Spray Sprinkler -answers>A type of sprinkler listed forits capability to provide fire controlforawiderangeoffirehazards. Themostcommonlyusedsprinklersince 1953. 164. StandardResponse SprinklerHead-answers>Asprinklerhavingafusiblelinkwitha response time index (RTI) of 80 or more. 165. Supervisory signal-initiating device - answers>An initiating device, such as a valve supervisory switch, that triggers a supervisory signal. 166. Testing-answers>A procedure used todetermine the status ofa system as intended by conducting periodic physical checks on water based fire protection systems such aswaterflow tests, firepumptests, alarmtests, andtriptestsofdrypipe, deluge, orpreactionvalves. These tests follow up on the original acceptance test atintervals specified in the appropriate chapter of NFPA #25, 2002edition. 167. Upright Sprinkler -answers>A sprinkler designed tobe installed in suchaway that the water spray is directed upwards against the deflector. 168. WaterSpray Fixed System-answers>Aspecialfixedpipesystemconnectedtoareliable fire protection water supply and equipped with water spray nozzles forspecific water discharge and distribution over the surface or area to be protected. The piping system is connected to the watersupplythrough anautomaticallyormanually actuated valve thatinitiates the flowof water. Anautomaticvalveis actuated byoperationofautomaticdetectionormanualrelease equipmentinstalledinthesameareasasthewaterspraynozzles. (Inspecialcases, the automatic detection system may also be located in another area.) 169. PREACTION SPRINKLER SYSTEMS - answers>designed for situations where there is dangerofseriouswaterdamage.Waterdamageisusuallycausedbydamagedsprinklersor brokenpiping. Undernormalconditionsthereisnowaterinthepiping. Theairinthepipingmay ormay not beis under pressure. A preaction valve prevents the water from entering the system. Thevalveisautomaticallyopenedwhenafiredetectionsystemdiscoversthatthereisafireor smokecondition. Thepreactionvalveistrippedbythefire detectionsystembeforeanyofthe Page 17 sprinkler heads open. Asupervisory device signals when the valveis opened. Thepreactionvalve can also be operated manually. 170. DELUGESPRINKLERSYSTEMS-answers>equippedwithopensprinklerheadsdesigned towetdownanentireareainvolvedinafire. Thissystemisneededwhenthereisdangerofa fire rapidly spreading throughout the building. The deluge system will slow down the spread of the fire. Delugesystemsare suitable forhazardousoccupancies. Thisincludesbuildingsinwhich flammable liquids or other hazardous materials are handled or stored. 171. The sprinkler headsin the deluge system are open atall times. Under normal conditions thereisnowaterinthepiping. Theairinthepipingisnotunderpressure.Aclosedcontrolvalve prevents waterfromflowingintothesystem. Afiredetectiondeviceautomaticallyopensthe controlvalvewhenafireisidentified. Asupervisorydevicesignalswhenthevalveisopened. Whenthevalveisopenedwaterflowsintothesystem. Thewateristhendischargedoutallof the sprinkler heads. The water control valve may also be opened manually. 172. NON-AUTOMATICDRYSPRINKLERSYSTEMS-answers?llpipesarenormallydry.Wateris supplied when needed by pumping water into the system through the Fire Department connection.Someofthesesystemsaresuppliedbymanualoperationofawatercontrolvalve and may be equipped with sprinklers with or without fusible links. 1 There are severalnon-automatic systems: 1) Perforated pipe systems -asingle line of piping drilled atintervals for water discharge. These systems are usually found inbasements or other areas difficult to reach in fire fighting operations. 2) Open fixed spray nozzles for transformer vaults or other hazardous areas; 3) exterior exposure sprinklers (or window sprinklers) use open sprinkler heads to form an external water curtain on the walls ofa building, and4)Foamsupplysystemsareusedfortheprotectionofspecialhazardousoccupancies. 174. CurbValves-answers>Gatevalvesofthenon-indicatingtypeareprovidedinwater distribution systems. Gate valves allow the sprinkler system to be shut off for repairs or maintenance. Suchvalvesarenormallyanon-rising stemtype. Theyare operated usingaspecial keywrench.Avalveboxislocatedoverthevalvetokeepdirtfromthevalve. Thevalveboxalso providesaconvenientaccesspointforthevalvewrenchtothevalvenut. Acompleterecord should be made for each valve in the system. This record should include the exactlocation, the dateitwas installed, the make, the direction of opening, number of turns to open, andany maintenance that wasperformed. 175. Thecontrol valve forthe building may also beon the outside wallorattachedtoan uprightpost, knownasapostindicatorvalve (PIV). The building orsection ofthe building controlled by the valve is usually marked on the post. The position of this valve (open or closed) is shownthroughatelltaleopeninginthepost.Onsomeposts, apadlockmustfirstbeopened to release the operating wrench or wheel handle. Page 19 183. Pressure Maintenance Pumps (Jockey Pumps) - answers>Pressure maintenance pumps, 184. Sometimesreferredtoasjockey,ormakeuppumps, areoftenfoundonsprinkler systems. These pumpsare designed to automatically operate when thereisa slight drop in pressure due tothe leakage inthe system ora pressure surge. The jockey pumprestores the pressureinthefireprotectionsystemtothedesiredlevel. Whenthedropofpressureinthe system greater than the capacity of the jockey pump the fire pumpis activated. 185. Boosterpumps/specialservicepumps-answers>Boosterpumpsaresometimesusedin sprinkler systems. Theysmall pumpswith limited power are usually located in the basement or taking suction from gravity tanks. The booster pumpis used when the water pressure available at thehighestsprinklerheaddoesnotquitemeettheneedsofthesprinklersystem. Thissmall pumpincreases the water pressure inthe sprinklersystem until itreaches acceptable levels. The booster pump should not be confused with the fire pump or the jockey pump. 186. Sprinklersystem piping-answers>Branchlinesaredirectlyconnectedtosprinkler heads. 187. Crossmainsorloop mainsaredirectly connected tobranchlines. Feed mainsare directly connectedtocrossmainsorloopmains. Risersareabletosupplyfeedmainsorcrossmains directly. 188. rti- answers>response time index 189. full flow test - answers>performed every 5 years: 190. open main valve to let debris escape, then close 191. system air and water pressrue recorded. 192. relieve pressure by opening inspector test valve (use stopwatch) 193. at dry pipe valve note aire pressure which valve trips an notetime 194. atinspectors test note time that water flows steadily. 195. test terminated when clean water flows (shit valve) 196. compare to pasttests 197: fire hydrant- answers>A valve connection ona water supply system having one ormore outlets and that is used to supply hose and fire department pumps with water. 198. Control valve - answers>A valve controlling flow to water base fire protection system. Control valve do not include hose valves Page 20 199. Firepumplocations-answers>thefirepumpshouldbelocatedinaplacethatis noncombustible or fire resistant. has to be heated to a minimum of 40 degrees Fahrenheit. 200. Gravity tanks should be howhigh above the highest sprinklerhead? - answers>25feet. 201. Whatarethethreemethodstoheating agravitytank-answers>Hotwatercirculation 202. Steamis discharged directly into the tank 203. steam coils are placed inside the tanks 204. Heat from the sun is used 205. Automaticfillpumpssupplythewatertomostgravitytanks. Thepumpsfillthetankata rate of_gpm -answers>65 206. Centrifugal pump can pumpatarate of -answers>25to5000 gallons per minute 207. whatis afire hydrant? -answers>A valve connection ona water supply system having oneormoreoutletsandthatisusedtasupplyhoseandfiredepartmentconnectionswithwater. 208. Whatis the purpose ofgate valves? - answers>A valve controlling flow to water based fire protection systems. Is used to isolate,shut off, and open sprinklersystems. 
