Iinkqubo zombhobho womlilo zihlala zidibana nemiba ebangelwa kuxinzelelo oluphezulu okanye oluguquguqukayo lwamanzi. Le mingeni ingakhokelela kumonakalo wezixhobo, ukuhamba kwamanzi okungahambelaniyo, kunye nemingcipheko yokhuseleko ngexesha likaxakeka. Ndiyibonile indlela iivalvu zokunciphisa uxinzelelo (i-PRVs) zidlala indima ebalulekileyo ekulungiseni ezi ngxaki. Uhlobo lwe-E lweValve yokuNcitshiswa kweValve esuka kwi-NB World Fire iqinisekisa uxinzelelo lwamanzi oluzinzile, luphucula ukuthembeka kweenkqubo zokukhusela umlilo. Ngotyalo-mali kwii-PRV ezikumgangatho ophezulu, awuphuculi kuphela ukhuseleko kodwa ukwandise ukusebenza kwenkqubo, okwenza ukuba kuqwalaselwe ecaleni kwexabiso levalve ye-fire hydrant.

Izinto eziphambili zokuThatha

• Iivalvu zokunciphisa uxinzelelo (i-PRVs) zinqanda uxinzelelo lwamanzi oluphezulu ukuba lungonakalisi izixhobo zokucima umlilo. Bagcina inkqubo ikhuselekile kwaye isebenza kakuhle.
• Ukuhamba kwamanzi okuzinzileyo kubaluleke kakhulu ngexesha likaxakeka. Ii-PRV zilawula utshintsho loxinzelelo, ukunceda abacimi bomlilo basebenze ngcono.
• Ukujonga kunye nokulungisa ii-PRVs kaninzi kubaluleke kakhulu. Oku kugcina inkqubo ixesha elide kwaye ithoba iindleko zokulungisa.
• Ukukhetha i-PRV efanelekileyo, njengohlobo lwe-E oluvela kwi-NB World Fire, ihlangabezana nemithetho yokhuseleko kwaye isebenza kakuhle.
• Ukuthenga iiPRV konga imali ekuhambeni kwexesha. Ikhusela izixhobo emonakalweni kwaye ithoba iindleko zokugcinwa.

Ukuqonda imingeni yoxinzelelo lwe-Fire Hydrant

Impembelelo yoxinzelelo lwamanzi aphezulu

Imingcipheko yomonakalo wezixhobo kunye nokungaphumeleli kwenkqubo

Uxinzelelo lwamanzi oluphezulu lubeka imingcipheko ebalulekileyo kwiinkqubo zokucima umlilo. Ndiyibonile indlela uxinzelelo olugqithisileyo olunokuthi lucinezele ngayo izinto ezibalulekileyo, ezikhokelela kukusilela kwesixhobo. Njengokuba:

• Iinkqubo zemibhobho zinokuqhekeka okanye zigqabhuke phantsi koxinzelelo olumandla.
• Iicasings zevalvu zinokusilela, zibangele ukuvuza okanye ukonakaliswa ngokupheleleyo kwenkqubo.
• Isixhobo esilungiselelwe uxinzelelo oluphantsi luhlala lungasebenzi kakuhle, lunciphisa ukuthembeka.

Uxinzelelo lwamanzi oluphezulu kwiinkqubo zomlilo kudala ingozi enkulu. Ingonakalisa izixhobo, ukunciphisa ukusebenza kakuhle kokucima umlilo, kunye nokukhusela ukhuseleko. Ngokomzekelo, isiganeko esibuhlungu kwi-One Meridian Plaza ngowe-1991 sabalaselisa indlela ukuseta ngokungafanelekanga iivalvu zokunciphisa uxinzelelo ezinokubeka engozini abacimi-mlilo kunye nabantu abahlala kuzo. Izakhiwo eziphakamileyo zijongene nemingeni eyongezelelweyo, njengoko uxinzelelo olugqithisileyo lunokunciphisa izixhobo zokukhusela umlilo, ngokuqhelekileyo zibamba ukuya kwi-175 psi.

Xa uxinzelelo lwamanzi ludlula amanqanaba akhuselekileyo, iinkqubo zokucima umlilo zinokusilela ukwenza njengoko bekucetyiwe. Uxinzelelo olugqithisileyo luphazamisa iipatheni zokutshiza ze-sprinklers okanye ii-nozzles, ukunciphisa ukusebenza kwazo. Oku kungasebenzi kakuhle kunokulibazisa ukucima umlilo, ukwandisa imingcipheko kwipropati kunye nobomi.

Iinkxalabo zokhuseleko kubacimi-mlilo kunye neziseko ezikufutshane

Abacimi-mlilo bajongana neengozi ezizodwa xa bejongana noxinzelelo oluphezulu lwe-hydrants. Ndikhe ndeva iingxelo zokonzakala okubangelwa yimibhobho engalawulekiyo ngexesha le-spikes yoxinzelelo. Ezi meko zinokunyuka ngokukhawuleza, ukubeka zombini abacimi bomlilo kunye neziseko ezikufutshane emngciphekweni.

• Abacimi bomlilo banokuphulukana nolawulo phezu kwemibhobho, ekhokelela kwiimeko eziyingozi.
• Uxinzelelo olugqithisileyo lunokubangela ukulimala, njengoko kubonakaliswe ngeengxelo zobuqu zeengozi ezibandakanya imibhobho engalawulwayo.
• Abaqhubi bempompo abanezakhono bayimfuneko ukulawula ukuguquguquka koxinzelelo kunye nokuthintela iingozi.

Isidingo soxinzelelo lwamanzi olungaguqukiyo kunye nolukhuselekileyo alukwazi ukugqithiswa. Ngaphandle kokulawulwa okufanelekileyo, uxinzelelo lwamanzi oluphezulu lunokubeka emngciphekweni ukhuseleko lwabo bangaphambili kunye nokunyaniseka kwezakhiwo ezijikelezileyo.

Ingxaki ngoxinzelelo oluguquguqukayo

Ukuhamba kwamanzi okungahambelaniyo ngexesha lemisebenzi yokucima umlilo

Ukuguquguquka koxinzelelo lwamanzi kudala imingeni ngexesha lemisebenzi yokucima umlilo. Ndiqaphele indlela ukuhamba okungahambelaniyo kunokuphazamisa ngayo ukusebenza kwemizamo yokucima umlilo. Xa uxinzelelo luguquguquka, abacimi-mlilo banokuba nzima ukugcina umsinga wamanzi, ukulibazisa ukucima kunye neengozi ezikhulayo.

Xa uxinzelelo lwamanzi luphezulu kakhulu, iinkqubo zokucima umlilo zihlala zisilela ukwenza njengoko bekucetywayo. Uxinzelelo olugqithisileyo lunokuphazamisa iipatheni zokutshiza ze-sprinklers okanye ii-nozzles, ukunciphisa ukusebenza kwazo.

Oku kungahambisani nako kunokukhokelela ekungasebenzi kakuhle ekuhanjisweni kwamanzi, okwenza kube nzima ukulawula imililo ngexesha elinzima.

Ukonyuka kokunxiba kunye nokukrazula kumalungu e-hydrant

Ukuguquguquka koxinzelelo akuchaphazeli nje ukusebenza kokucinywa komlilo; zikwathatha irhafu kwisixokelelwano se-hydrant ngokwayo. Ngokuhamba kwexesha, ndiyibonile indlela ezi nguqu zikhawulezisa ngayo ukunxiba kunye nokukrazula kumacandelo, okukhokelela kwiindleko eziphezulu zokugcinwa kunye nokusilela kwenkqubo.

• Uxinzelelo oluphezulu lwamanzi lunokubangela ukuba iinkqubo zemibhobho ziqhekeke okanye zigqabhuke.
• Izingxobo zevalvu zinokusilela, nto leyo ekhokelela ekuvuzeni okanye ekuqhekekeni kwenkqubo.
• Isixhobo esilungiselelwe uxinzelelo olusezantsi lunokungasebenzi kakuhle okanye lungathembeki.

Ukugcina uxinzelelo lwamanzi oluzinzileyo kubalulekile ukukhusela zombini inkqubo kunye nabantu abaxhomekeke kuyo. Ngokujongana nale mingeni, sinokuqinisekisa ukuba iinkqubo zombhobho womlilo zihlala zithembekile kwaye zisebenza xa zifuneka kakhulu.

Zisebenza njani iiValufa zokuNciphisa uxinzelelo

Inkqubo yee-PRVs

Amalungu evalve yokunciphisa uxinzelelo

Ndiye ndasebenza ngeevalvu ezininzi zokunciphisa uxinzelelo, kwaye indlela eziyilwe ngayo isoloko indichukumisa. Ezi zivalo zineenxalenye ezininzi ezibalulekileyo, ngalinye lidlala indima ebalulekileyo ekulawuleni uxinzelelo lwamanzi. Nalu ulwahlulo lwamalungu aphambili:

Icandelo ngalinye lisebenza ngokuhambelanayo ukuqinisekisa ukuba i-valve isebenza ngokufanelekileyo phantsi kweemeko ezahlukeneyo.

Ii-PRVs zilawula kwaye zizinzisa njani uxinzelelo lwamanzi

Ukusebenza kwePRV kuqondile kodwa kusebenza kakhulu. I-diaphragm elayishwe entwasahlobo iphendula utshintsho kuxinzelelo olusezantsi. Xa uxinzelelo olusezantsi luhla, njengaxa i-hydrant ivuliwe, i-diaphragm ivumela i-valve ukuba ivuleke ngokubanzi. Oku kwandisa ukuhamba kwamanzi kunye nokubuyisela uxinzelelo kwinqanaba elifunekayo. Ngokugcina uxinzelelo oluqhubekayo, ii-PRVs ziqinisekisa ukuba iinkqubo ze-hydrant fire hydrant zisebenza ngokuthembekileyo, nangona ngexesha lokutshintsha kwemfuno.

Iindidi zePRVs kwiiNkqubo zeHydrant zoMlilo

Ii-PRV ezisebenza ngokuthe ngqo

Ii-PRV ezisebenza ngokuthe ngqo zilula kwaye zinoqoqosho. Basebenzisa umthombo ongaphezulu kwendawo yokuva uxinzelelo ukulawula ivalve. Xa uxinzelelo ludlula amandla entwasahlobo, i-valve ivula. Ezi PRV zifanelekile kwiimfuno ezisezantsi zokuhamba koncedo kodwa zinemida yobukhulu kunye noluhlu loxinzelelo ngenxa yomthamo wentwasahlobo.

Ii-PRVs eziqhutywa ngolingo

Ii-PRV eziqhutywa ngolingo zihambele phambili kakhulu. Basebenzisa umqhubi wenqwelo-moya oncedisayo ukuva uxinzelelo nokulawula ivalve engundoqo enkulu. Ezi zivalo zikhawuleza ukuvula ngokupheleleyo kunye nokuphatha amandla aphezulu, okwenza ukuba zilungele iinkqubo ezinkulu zemibhobho. Ukuchaneka kwabo kwiingcinezelo ezahlukeneyo kunye nokuhamba kubenza ukuba bakhethe ukukhetha ukuseta okunzima kokukhusela umlilo.

Iimpawu ze-E yoHlobo lweValve yokuNciphisa uxinzelelo

Ukuthotyelwa kwemigangatho ye-BS 5041 Icandelo 1

Udidi lwe-PRV lwe-E ludibana nemigangatho ye-BS 5041 yeCandelo 1, luqinisekisa ukuba luthobela ukhuseleko olungqongqo kunye neemfuno zokusebenza. Oku kuthotyelwa kuthintela ukunyanzeliswa koxinzelelo, ukunciphisa ukunxiba kwizixhobo, kunye nokugcina uxinzelelo lwamanzi olungaguqukiyo-olubalulekileyo ukucinywa komlilo okusebenzayo.

Uxinzelelo lwe-outlet oluhlengahlengiswayo kunye nesantya esiphezulu sokuhamba

Le valve inika i-adjustable outlet pressure range of 5 to 8 bars kwaye ihambisa izinga eliphezulu lokuhamba ukuya kuthi ga kwi-1400 ilitha ngomzuzu. Ezi mpawu zenza ukuba zithembeke kakhulu ngexesha likaxakeka, ukuqinisekisa ukunikezelwa kwamanzi okwaneleyo kwimisebenzi yokucima umlilo.

Ukuqina kunye nokufaneleka kwizicelo eziselunxwemeni nakwi-off-shore

Yakhiwe ngobhedu olukumgangatho ophezulu, i-E Type ye-PRV imelana neendawo ezifunayo. Uyilo lwayo oluqinileyo lwenza ukuba lufaneleke kwiinkqubo zokukhusela umlilo kwi-shore kunye ne-off-shore, ukuqinisekisa ukuthembeka kwexesha elide kwiimeko ezahlukeneyo.

Iingenelo zokuSebenzisa ii-PRV kwiiNkqubo ze-Fire Hydrant

Ukhuseleko olomeleziweyo

Ukuthintela uxinzelelo olugqithisileyo kunye nomonakalo wezixhobo

Ndiyibonile indlela iivalvu zokunciphisa uxinzelelo (i-PRVs) zidlala indima ebalulekileyo ekuthinteleni uxinzelelo olugqithisileyo kwiinkqubo zokucima umlilo. Uxinzelelo olugqithisileyo lungonakalisa amacandelo abalulekileyo, njengemibhobho kunye neevalve, ezikhokelela ekulungisweni kweendleko okanye ukusilela kwenkqubo. Ii-PRV zinciphisa lo mngcipheko ngokugcina amanqanaba oxinzelelo oluzinzileyo, ukuqinisekisa ukuba inkqubo isebenza ngaphakathi kwemida ekhuselekileyo.

• Bakhusela izixhobo ngokunciphisa ukuguga kunye nokukrazula okubangelwa luxinzelelo oluphezulu.
• Baphucula ubomi obude beenkqubo zombhobho womlilo, zinciphisa imfuno yokutshintshwa rhoqo.

Ngotyalo-mali kwii-PRV ezikumgangatho ophezulu, njengoHlobo lwe-E lokuNciphisa iValve, unokukhusela inkqubo yakho ngelixa ulungiselela ukusebenza kakuhle. Oku kwenza isisombululo esineendleko, ngakumbi xa uqwalasela ixabiso levalve yomlilo.

Ukuqinisekisa ukuhamba kwamanzi okungaguqukiyo ukulungiselela ukucima umlilo

Ngexesha likaxakeka, ukuhamba kwamanzi okungaguqukiyo kubalulekile ekucimeni umlilo okusebenzayo. Ii-PRVs ziqinisekisa oku ngokulawula ukuguquguquka koxinzelelo olunokuthi ngenye indlela luphazamise ukusebenza. Umzekelo:

Ezi zixhobo zisebenza kunye ukuhambisa ukuhamba kwamanzi okuzinzileyo, ukuphucula ukusebenza kakuhle komlilo kunye nokunciphisa ixesha lokuphendula.

Ukuthotyelwa kweMimiselo

Ukuhlangabezana nemigangatho yokhuseleko lomlilo yasekhaya neyesizwe

Ukuthotyelwa kwemigaqo yokhuseleko lomlilo akunakuxoxwa. Ii-PRVs zinceda ukuhlangabezana nemigangatho efana naleyo ichazwe yiNFPA 20, egunyazisa ukusetyenziswa kwazo kwiimeko ezithile. Njengokuba:

• Ii-PRVs ziyafuneka xa iimpompo zomlilo ze-injini ye-diesel zidlula imida ethile yoxinzelelo.
• Baqinisekisa ulawulo loxinzelelo kwiinkqubo apho iimpompo zomlilo zombane zisebenza kunye nabaqhubi besantya esiguqukayo.

Ngokuthobela le mimiselo, ii-PRVs aziphuculi ukhuseleko kuphela kodwa zikwabonisa ukuzinikela ekugqweseni kwezomthetho nokusebenza.

Ukuphepha izohlwayo kunye nemiba yezomthetho

Ukungahambelani nemigangatho yokhuseleko lomlilo kunokubangela izohlwayo ezinzima kunye neengxaki zomthetho. Ndiyibonile indlela ii-PRVs ezisusa ngayo ezi ngozi ngokuqinisekisa ukuba iinkqubo zisebenza ngaphakathi kwemida yoxinzelelo emiselweyo. Le ndlela yokuqalisa ukusebenza ayikhuseli nje kuphela ubomi nempahla kodwa ikwanqanda uxanduva lwemali olungeyomfuneko.

Uphuculo lweNkqubo yokuSebenza

Ukuphucula ukuhanjiswa kwamanzi kwinkqubo

Ii-PRVs zinegalelo elikhulu kulwabiwo lwamanzi olusebenzayo. Ngokulinganisa uxinzelelo kuyo yonke inkqubo, baqinisekisa ukuba amanzi afikelela kuwo onke amanqaku abalulekileyo ngaphandle kokulayisha ngaphezulu naliphi na icandelo. Oku kulungiswa konyusa ukusebenza ngokubanzi kweenkqubo zombhobho womlilo.

• Ii-PRVs zithintela ukuxinzezeleka ngokugqithisileyo, ukunciphisa ukuguga kunye nokukrazula kwizixhobo.
• Bagcina ukuhamba kwamanzi okungaguqukiyo, okubalulekileyo ekucimeni umlilo okusebenzayo.

Oku kusebenza kakuhle kwenza i-PRV ibe yimali exabisekileyo, ngakumbi xa ivavanya ixabiso le-valve ye-fire hydrant kumxholo weenzuzo zexesha elide.

Ukunciphisa iindleko zokulondoloza nokwandisa ubomi besixhobo

Amanqanaba oxinzelelo oluzinzileyo anciphisa uxinzelelo kumacandelo enkqubo, okukhokelela kwiindleko zokugcinwa okuphantsi. Ndiqaphele indlela ii-PRVs eziyandisa ngayo ixesha lokuphila kwezixhobo ngokunciphisa umonakalo obangelwa kukuguquguquka koxinzelelo. Oku akugcini nje ukugcina imali kodwa kuqinisekisa ukuba inkqubo ihlala ithembekile ngexesha likaxakeka.

Utyalo-mali kwi-PRV ehlala ixesha elide, njenge-E Type Pressure Reducing Valve, inikeza ukugcinwa kwexesha elide. Ukukwazi kwayo ukugcina uxinzelelo oluhambelanayo kunciphisa ukuphindaphinda kokulungiswa kunye nokutshintshwa, okwenza kube yinto ebiza imali.

Ukuqwalaselwa kweendleko kunye nexabiso leValve yeHydrant yoMlilo

Izinto ezinefuthe kwixabiso le-PRVs

Ndiqaphele ukuba izinto ezininzi zinegalelo kwixabiso leevalvu zokunciphisa uxinzelelo (PRVs) kwiinkqubo zombhobho womlilo. Okokuqala, ukuthotyelwa kwemigangatho yamazwe ngamazwe kudlala indima ebalulekileyo. Iivalvu ezihlangabezana nezatifikethi ezingqongqo, ezinje nge-BS 5041 iSigaba soku-1, zivavanywa kakhulu ukuqinisekisa ukuthembeka kunye nokhuseleko. Le nkqubo ihlala inyusa iindleko zabo kodwa iqinisekisa ukusebenza okuphezulu.

Isidima somenzi sikwachaphazela amaxabiso. Iimpawu ezithembekileyo ezifana ne-NB World Fire, ezaziwa ngeemveliso zazo ezikumgangatho ophezulu, zihlala ziyalela amaxabiso aphezulu. Abathengi baxabisa ukuqinisekiswa kokuqina kunye nokusebenza kakuhle, okwenza utyalo-mali luxabiseke. Ukongezelela, ukugcinwa kweendleko zexesha elide kunempembelelo kwixabiso elipheleleyo le-PRVs. Iivalvu ezithembekileyo zinciphisa iindleko zokugcinwa kunye nokwandisa ubomi beenkqubo zombhobho womlilo, zithethelela iindleko zabo zokuqala.

Ugcino lweendleko zexesha elide ngolondolozo oluncitshisiweyo kunye nokuphucula ukusebenza kakuhle

Utyalo-mali kwii-PRVs lubonelela ngolondolozo lwexesha elide. Ndiyibonile indlela ezi zivalo zinciphisa ngayo ukunxiba kunye nokukrazula kumalungu e-hydrant ngokugcina amanqanaba oxinzelelo oluzinzileyo. Oku kunciphisa ukuphindaphinda ukulungiswa kunye nokutshintshwa, ukunciphisa iindleko zokusebenza. Umzekelo, ukufakelwa kwee-PRVs kudla ngokuxabisa malunga ne-500,000 yeedola. Nangona kunjalo, ixesha lokubuyisela lisusela kwiminyaka emibini ukuya kwemithathu xa kuqwalaselwa zombini ukugcinwa kokusebenza kunye nenkunzi. Ukuba kuphela ukugcinwa kokusebenza kufakwe kwi-factory, ixesha lokubuyisela lidlulela kwiminyaka emithathu ukuya kwemine.

Ii-PRVs zikwanyusa ukusebenza kakuhle kwenkqubo ngokuqinisekisa ukuhamba kwamanzi okungaguqukiyo ngexesha likaxakeka. Oku kuthembeka kwandisa imisebenzi yokucima umlilo kunye nokunciphisa ixesha lokuphumla, igalelo elingakumbi ekongeni iindleko. Xa uvavanya ixabiso levalvu yesixhobo sokucima umlilo, kubalulekile ukuqwalasela ezi zibonelelo zexesha elide. I-PRV ephezulu, efana ne-E Type Pressure Reducing Valve, ayiqinisekisi kuphela ukhuseleko kodwa inikezela ngeenzuzo zemali ngexesha.

IsiKhokelo esiSebenzayo soFakelo lwePRV kunye noLondolozo

IiNdlela eziGqwesileyo zokuFakelo

Ukukhetha iPRV efanelekileyo kwinkqubo yakho

Ukukhetha ivalve yokunciphisa uxinzelelo oluchanekileyo (PRV) kubalulekile ekuqinisekiseni ukusebenza ngokugqibeleleyo kwiinkqubo zombhobho womlilo. Ndihlala ndincoma ukulandela la manyathelo ukwenza ukhetho olufanelekileyo:

1. Ukuthotyelwa kweMigangatho: Khetha iiPRV ezihlangabezana nemigangatho yokhuseleko lwamazwe ngamazwe, njenge-BS 5041 iSigaba 1, ukuqinisekisa ukuthembeka ngexesha likaxakeka.
2. Ukuhambelana kweNkqubo: Qinisekisa ukuba i-PRV ihambelana nemigaqo yesixokelelwano sakho, kuquka noluhlu loxinzelelo kunye nesantya sokuhamba.
3. Ufakelo olululo: Landela uluhlu lofakelo oluneenkcukacha ukuqinisekisa ukuba isivalo sisebenza njengoko bekucetyiwe.
4. Ukuhlolwa rhoqo: Cwangcisa ukukhangela rhoqo ukuchonga ukuguga okanye umonakalo, ugxininise kwiitywina kunye nokudibanisa.
5. Ukucoca kunye nokuthambisa: Gcina ivalve icocekile kwaye usebenzise izithambiso kwiindawo ezihambayo ukuze usebenze kakuhle.

Ngokubambelela kwezi zenzo, unokwandisa ukhuseleko kunye nokusebenza kakuhle kwenkqubo yakho yokukhusela umlilo.

Ukubekwa ngokufanelekileyo kunye nokuseta ukuqinisekisa ukusebenza kakuhle

Ukubekwa ngokufanelekileyo kweePRV kubaluleke kakhulu njengokukhetha ivalve efanelekileyo. Ndiyibonile indlela ukubekwa okungachanekanga kunokukhokelela ngayo kwiintsilelo eziyingozi. Ngokomzekelo, ngo-1991 umlilo we-One Meridian Plaza, ii-PRV ezibekwe ngendlela engafanelekanga zasilela ukubonelela ngoxinzelelo olwaneleyo, ukubeka engozini abacimi-mlilo kunye nabahlali bezakhiwo. Ukunqanda iingozi ezinjalo:

• Faka ii-PRVs kwizakhiwo eziphakamileyo ukulawula ukwakhiwa koxinzelelo kwimigangatho ephantsi ebangelwa ngumxhuzulane.
• Qinisekisa ukuba uxinzelelo lwenkqubo luhlala lungaphantsi kwe-175 psi ukukhusela amacandelo afana nezitshizi kunye ne-standpipes.
• Yenza uhlolo kunye novavanyo rhoqo ukuqinisekisa ukubekwa kunye nokusebenza ngokufanelekileyo.

La manyathelo aqinisekisa ukuba ii-PRVs zisebenza kakuhle, zikhusela ubomi kunye neziseko zophuhliso.

Ulungelelwaniso kunye noLungiso

Ukubeka amanqanaba achanekileyo oxinzelelo lwezixhobo zokucima umlilo

Ukulinganisa ii-PRVs kubalulekile ekugcineni amanqanaba oxinzelelo oluchanekileyo. Ndilandela indlela ecwangcisiweyo yokuqinisekisa ukuchaneka:

1. Qinisekisa indawo yokulinganisa iqondo loxinzelelo kwaye ulawule umthombo woxinzelelo ngokufanelekileyo.
2. Qwalasela ukuvuza emva kolungiselelo ukuqinisekisa ufakelo olukhuselekileyo.
3. Ukwandisa uxinzelelo ngokuthe ngcembe de i-valve ivule, emva koko urekhode ukufundwa koxinzelelo.
4. Nciphisa kancinane ukuhamba ukuze ujonge uxinzelelo lwevalvu kwaye uyibhale phantsi.
5. Phinda inkqubo kathathu ukuqinisekisa ukuhambelana.

Le ndlela iqinisekisa ukuba ii-PRV zihambisa uxinzelelo oluzinzile ngexesha likaxakeka, ukuphucula ukusebenza kakuhle komlilo.

Ukuvavanya rhoqo ukugcina ukuchaneka

Uvavanyo lwarhoqo lubalulekile ekuqinisekiseni ukuba ii-PRV zisebenza ngokuchanekileyo ekuhambeni kwexesha. Ngokutsho kweNFPA 291, uvavanyo lokuhamba kufuneka luqhutywe rhoqo emva kweminyaka emihlanu ukuqinisekisa umthamo kunye nokumakishwa kombhobho wokuhambisa amanzi. Ndikwacebisa iitshekhi zokulinganisa rhoqo ukugcina ufundo loxinzelelo oluchanekileyo. Ezi nkqubo zinceda ekuchongeni imiba enokubakho kwangethuba, kuthintelwe ukulungiswa okuneendleko eziphezulu kunye nokuqinisekisa ukuba inkqubo ihlala ithembekile.

Iingcebiso zokuLondoloza

Ukuhlolwa rhoqo ukuchonga ukuguga okanye umonakalo

Uhlolo lwesiqhelo lungundoqo ekwandiseni ubomi bee-PRVs. Ndihlala ndijonge iimpawu eziqhelekileyo zokunxitywa okanye umonakalo, ezifana:

• Izitenxo kwi-pilot head spool kunye nesihlalo.
• Izithintelo kumgca wokulingwa wokukhupha amanzi.
• Inkunkuma okanye umonakalo kwi-spool engundoqo enokuthintela ukuvala ngokufanelekileyo.
• Izingcolisi ezibangela ukuba i-spool ibambelele.
• Umqhubi wentloko yomqhubi owonakeleyo ochaphazela ukusebenza.

Ukujongana nale miba ngokukhawuleza kuqinisekisa ukuba iPRV iyaqhubeka nokusebenza ngokufanelekileyo.

Ukucoca kunye nokutshintsha amacandelo njengoko kufuneka

Ukugcina iiPRVs zicocekile lelinye inyathelo lolondolozo elibalulekileyo. Ndincoma ukukhupha i-debris enokuphazamisa ukusebenza kwevalve kunye nokutshintshwa kwezinto ezigugileyo ezifana nezitywina okanye iidiski. Ukufaka izithambiso ezifanelekileyo kwiindawo ezihambayo nako kunceda ukugcina ukusebenza kakuhle. Ezi ndlela zilula kodwa ezisebenzayo zinciphisa umngcipheko wokungaphumeleli kwenkqubo kunye nokwandisa ubomi benkonzo yevalve.

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Ixesha lokuposa: Feb-24-2025