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.

Ukujongana nale miba, ndithembele kwi-Pressure Reducing Valve E Type yi-NB World Fire. Le valve iqinisekisa uxinzelelo lwamanzi olungaguqukiyo, ukukhusela zombini iinkqubo kunye nobomi. Uyilo lwayo olomeleleyo kunye nokuthotyelwa kwemigangatho yamazwe ngamazwe kuyenza ibe lukhetho oluthembekileyo phakathi kwabavelisi beevalvu eziphezulu zomlilo.

Izinto eziphambili zokuThatha

• Uhlobo lweValve E yokuNcitshiswa koxinzelelo lugcina uxinzelelo lwamanzi luzinzile. Ikhusela iinkqubo zomlilo kwaye inceda ukulwa nemililo ngcono.
• Ukufaka nokugcina ivalve yoHlobo lwe-E kubaluleke kakhulu. Oku kuqinisekisa ukuba isebenza kakuhle kwaye ihlala ixesha elide.
• Ivalve yoHlobo lwe-E inceda ukulandela imigaqo yokhuseleko kunye nemithetho. Ithoba imingcipheko kwaye yenza ulawulo lomlilo lusebenze ngakumbi.
• Ukuthenga iivalve ezilungileyo njengohlobo lwe-E konga imali ngokuhamba kwexesha. Ifuna ukulungiswa okuncinci kwaye ihlala ixesha elide.
• Ukukhetha umenzi othembekileyo onje nge-NB World Fire bubulumko. Iimveliso zabo zomelele kwaye zisebenza kakuhle kwiimeko ezingxamisekileyo.

Ukuqonda Uxinzelelo lokuNciphisa uhlobo lweValve E

Ingcaciso kunye nenjongo

IUxinzelelo lokuNcitshiswa kweValve E Uhloboidlala indima ebalulekileyo kwiinkqubo zokukhusela umlilo. Iqinisekisa ukuba uxinzelelo lwamanzi luhlala luhambelana, nangona xa uxinzelelo lwe-inlet luguquguquka. Ndiyibona njengokhuselo oluthintela uxinzelelo olugqithisileyo kwizixhobo ezonakalisayo okanye ekunciphiseni ukusebenza kwemizamo yokucima umlilo. Le valve yenzelwe ngokukodwa ukulawula ukuhamba kwamanzi, okwenza ukuba ibe yinto ebalulekileyo kuzo zombini unxweme kunye nezicelo zokucima umlilo ngaphandle konxweme. Injongo yayo icacile-ukugcina ukhuseleko kunye nokusebenza kakuhle kwiimeko ezinzima.

Iimpawu eziphambili kunye neNgcaciso

Ivalve yoHlobo lwe-E igqame ngenxa yolwakhiwo oluqinileyo kunye nezinto zobhedu ezikumgangatho ophezulu. Iyakwazi ukujongana noxinzelelo lwe-nominal inlet ukuya kwii-bar ze-20, okwenza ukuba zilungele uluhlu olubanzi lweemeko. Olunye uphawu endilufumana luchukumisa kakhulu kukukwazi ukugcina uxinzelelo olungagungqiyo lokuphuma, nokuba uxinzelelo lokungena luhluka phakathi kwe-7 kunye ne-20 imivalo. Abasebenzisi banokuhlengahlengisa uxinzelelo lokuphuma phakathi kwe-5 kunye ne-8 imivalo ukuhlangabezana neemfuno ezithile zenkqubo.

Ivalve ikwaqhayisa ngesantya sokuhamba kwamanzi esiziilitha ezingama-1400 ngomzuzu, iqinisekisa ukubonelelwa kwamanzi okwaneleyo ngexesha likaxakeka. Ukuphoswa kwayo kwangaphakathi kunciphisa izithintelo zokuhamba, okukunceda ukuba ihlangabezane neemfuno ezingqongqo zovavanyo lokuhamba kwamanzi. Ngokuthotyelwa kwe-BS 5041 Icandelo le-1 kunye neziqinisekiso ezifana ne-ISO 9001: 2015, le valve ihlangabezana nemigangatho yamazwe ngamazwe. Ezi mpawu zenza kube lukhetho oluthembekileyo phakathi kwabavelisi bevalvu ephezulu yomlilo.

Indima kwiiNkqubo zoKhuseleko loMlilo

Kwiinkqubo zokukhusela umlilo, i-valve yoHlobo lwe-E iqinisekisa ukuba uxinzelelo lwamanzi luhlala ngaphakathi kwemida ekhuselekileyo. Ndiqaphele ukuba oku kuhambelana kukukhusela njani izixhobo ekugugeni, ukwandisa ubomi baso. Ikwaphucula ukusebenza kakuhle koxinzelelo lomlilo ngokunikezela ubungakanani obufanelekileyo boxinzelelo lwamanzi ukucima imililo ngokufanelekileyo. Ingaba kwizakhiwo eziphakamileyo okanye izakhiwo zoshishino, le valve ihambelana neemeko ezahlukeneyo, iqinisekisa ukusebenza okuthembekileyo. Indima yayo iyimfuneko ekugcineni ingqibelelo yeenkqubo zokhuseleko lomlilo.

Imingeni yoxinzelelo lwamanzi aphakamileyo kwiiNkqubo zoMlilo

Imingcipheko yokonakala kweZixhobo kunye nokuNxitywa

Uxinzelelo oluphezulu lwamanzi lunokubangela umonakalo kwiinkqubo zokukhusela umlilo. Ndiyibonile indlela ukunyuka koxinzelelo ngequbuliso, okuhlala kubizwa ngokuba yihamile yamanzi, kunokubangela umonakalo omkhulu. Oku kunyuka kudala amaza oxinzelelo anokugqithisa i-50 barg (740 psi), kude ngaphaya koxinzelelo oluqhelekileyo lokusebenza lwe-12 barg (175 psi). Imiphumo inokuba yintlekele.

• Iinkqubo zemibhobho zinokuqhekeka okanye zigqabhuke phantsi koxinzelelo.
• Iicasing zevalvu zinokusilela, nto leyo ekhokelela ekuvuzeni okanye ukonakala kwenkqubo epheleleyo.
• I-instrumentation, eyenzelwe uxinzelelo oluphantsi, ihlala ingasebenzi kakuhle okanye ingathembeki.

Le miba ayiphazamisi ukusebenza kwenkqubo kuphela kodwa ikhokelela ekulungisweni okuneendleko eziphezulu kunye nexesha lokuphumla. Yiyo loo nto ndihlala ndigxininisa ukubaluleka kokusebenzisa ivalve ethembekileyo yokunciphisa uxinzelelo njengoHlobo lwe-E ukunciphisa le mingcipheko.

Ukungasebenzi kakuhle ekuCindezelweni koMlilo

Xa uxinzelelo lwamanzi luphezulu kakhulu, iinkqubo zokucima umlilo zihlala zisilela ukwenza njengoko bekucetywayo. Ndiye ndaqaphela ukuba uxinzelelo olugqithisileyo lunokuphazamisa iipateni zokutshiza ze-sprinklers okanye imilomo, ukunciphisa ukusebenza kwazo. Endaweni yokulawulwa kunye nokuhanjiswa kwamanzi, unokufumana izitshizi ezigwenxa okanye ukuphosa, okunokushiya iindawo ezibalulekileyo zingakhuselekanga.

Oku kungasebenzi kakuhle kunokulibazisa ukucima umlilo, kwandisa ingozi yomonakalo wempahla kunye nokubeka ubomi engozini. Ngokugcina uxinzelelo oluqhubekayo, i-valve yoHlobo lwe-E iqinisekisa ukuba amanzi afikelela emlilweni ngeyona ndlela isebenzayo. Oku kuhambelana kubaluleke kakhulu kwizakhiwo eziphakamileyo kunye neendawo zoshishino apho isibini ngasinye sibalulekile.

Ukhuseleko kunye neeNgxaki zokuThobela

Ukugcina uxinzelelo lwamanzi olufanelekileyo akukhona nje malunga nokusebenza; ikwangumba wokhuseleko nokuthotyelwa. Imigangatho yokhuseleko lomlilo efana ne-NFPA 20 idinga ukusetyenziswa kweevalve zokunciphisa uxinzelelo ukukhusela ukugqithisa kwiinkqubo zempompo yomlilo. I-NFPA 13 igxininisa imfuneko yoxinzelelo olwaneleyo lwamanzi ukuze kuhlangatyezwane neemfuno zezona ndawo zinemingeni kwinkqubo yokutshiza. Ukongeza, i-NFPA 25 iqaqambisa ukuba uxinzelelo olungonelanga lunokwenza inkqubo yesitshizi somlilo ingasebenzi.

Ndifumanise ukuba ukuthobela le migangatho akuqinisekisi ukhuseleko lwabahlali nje kuphela kodwa kunqanda iziphumo ezinokuthi zibe kho zomthetho nezemali. Ukusebenzisa imveliso eqinisekisiweyo efana nevalve yoHlobo lwe-E, ehambelana nemigangatho yamazwe ngamazwe, inceda ukuhlangabezana nezi mfuno zingqongqo. Yiyo loo nto abavelisi bevalvu ephezulu yomlilo bebeka phambili umgangatho kunye nokuthotyelwa kuyilo lwabo.

Indlela i-PRV E yoHlobo oluSombulula ngayo imiba yoxinzelelo lwamanzi aphezulu

Indlela yokuSebenza

Uhlobo lwe-PRV E lusebenza ngokuchanekileyo ukulawula uxinzelelo lwamanzi ngokufanelekileyo. Ndiye ndaqaphela ukuba indlela yayo ixhomekeke kwizinto ezimbini eziphambili:

Olu yilo luqinisekisa ukuba i-valve ilungelelanisa ukunyanzeliswa kwe-inlet eguquguqukayo, igcina uxinzelelo oluzinzileyo lokuphuma. Ndiyibonile indlela oku bhetyebhetye kuthintela ngayo umonakalo kwimibhobho kwaye iqinisekisa inkonzo esebenzayo kubasebenzisi. Uhlobo lwe-PRV E luphendula ngokukhawuleza kwiimeko zemfuno ezahlukeneyo, okwenza kube yinto enokuthenjwa kwiinkqubo zomlilo.

Iimpawu zoYilo zokuSebenza okuPhuculo

Uhlobo lwe-PRV E luvelele ngenxa yoyilo olucingayo. Ulwakhiwo lwayo oluqinileyo lobhedu luqinisekisa ukuqina, nakwiindawo ezifunayo. Ndiyayibulela indlela ukuhanjiswa kwangaphakathi okunciphisa ngayo izithintelo zokuhamba, okunceda ukugcina ukuhanjiswa kwamanzi okungaguqukiyo. Ukukwazi kwevalve ukujongana noxinzelelo lokungena ukuya kuthi ga kwimivalo engama-20 kunye nokugcina uxinzelelo lokuphuma phakathi kwe-5 kunye ne-8 imivalo inikezela ukulungelelanisa kwiimeko ezahlukeneyo zokukhusela umlilo.

Olunye uphawu endilufumana luchukumisa ngumyinge wayo ophezulu wokuhamba we-1400 ilitha ngomzuzu. Oku kuqinisekisa ukuba amanzi aneleyo afikelela emlilweni ngexesha likaxakeka. Ukuthotyelwa kwevalve ngemigangatho yamazwe ngamazwe, efana ne-BS 5041 iNxalenye yoku-1 kunye ne-ISO 9001:2015, igxininisa ngakumbi ukuthembeka kwayo. Ezi mpawu zenza ukuba kube yinto ekhethwayo phakathi kwabavelisi beevalvu eziphezulu zomlilo.

Izibonelelo zokusebenzisa uhlobo lwePRV E kwiiNkqubo zoMlilo

Ukusebenzisa i-PRV E Uhlobo kwiinkqubo zomlilo ibonelela ngeenzuzo ezininzi. Okokuqala, ikhusela izixhobo ngokuthintela ukuxinzezeleka okugqithisileyo, okunciphisa ukuguga kunye nokukrazula. Okwesibini, iphucula ukusebenza kakuhle komlilo ngokuhambisa uxinzelelo lwamanzi olungaguqukiyo, ukuqinisekisa ukucinywa komlilo okusebenzayo. Okwesithathu, inceda ukuhlangabezana nemigangatho yokhuseleko kunye nokuthotyelwa, ebaluleke kakhulu ekuphepheni imingcipheko yomthetho kunye nokusebenza.

Ndiqaphele ukuba iimetriki zemveli zokusebenza zihlala zisilela ekuvavanyeni iiPRV phantsi kweemeko zemfuno eguquguqukayo. Uhlobo lwe-PRV E lugqwesileyo ngokugcina ukuchaneka kulawulo loxinzelelo olujoliswe kuyo kunye nokunciphisa uxinzelelo oluphezulu ngexesha lemisebenzi yokulawula. Oku kwenza icandelo elithembekileyo kuthungelwano lokuhambisa amanzi, ngakumbi kwizakhiwo eziphakamileyo kunye nezixhobo zoshishino.

IsiKhokelo esiSebenzayo soFakelo, uLungiso, kunye noLondolozo

Amanyathelo oFakelo olululo

Ukufakela i-Valve E yokuNcitshiswa koxinzelelo ngokuchanekileyo kubalulekile ekusebenzeni kakuhle. Ndihlala ndiqala ngokuqinisekisa ukuba ivalve iyahambelana neenkcukacha zenkqubo. Nalu uluhlu olulula endilulandelayo:

1. Jonga iValve: Ngaphambi kokufakela, ndikhangela nawuphi na umonakalo obonakalayo okanye iziphene.
2. Ukuma: Ndiqinisekisa ukuba ivalve ifakwe kwi-orientation echanekileyo, kunye nolwalathiso lokuhamba oluhambelana noyilo lwenkqubo.
3. Uqhagamshelwano: Ngokuxhomekeke kulungiselelo, ndisebenzisa i-flanged okanye i-screw inlet ukukhusela i-valve.
4. Ukuqiniswa: Ndiqinisa lonke uqhagamshelo ukuthintela ukuvuza, ndisebenzisa izixhobo ezifanelekileyo ukunqanda ukuqinisa kakhulu.

Ingcebiso: Soloko ubhekisa kwizikhokelo zomenzi ngemiyalelo ethile yokufakela.

Iingcebiso zokuLungisa ukuSebenza ngokuFanelekileyo

Ukulinganisa ivalve kuqinisekisa ukuba igcina uxinzelelo olufunwayo lokuphuma. Ndilandela la manyathelo ukuphumeza ukusebenza kakuhle:

• Ukuseta kokuqala: Ndibeka i-valve kuxinzelelo olucetyiswayo lokuphuma, ngokuqhelekileyo phakathi kwe-5 kunye ne-8 imivalo.
• Uvavanyo: Ndiqhuba amanzi ngenkqubo ukujonga ukuhambelana koxinzelelo.
• Uhlengahlengiso: Ukuba kuyimfuneko, ndenza uhlengahlengiso oluncinci kuxinzelelo lwasentwasahlobo ukuze ndilungelelanise izicwangciso zoxinzelelo.

Phawula: Iitshekhi zokulinganisa rhoqo zinceda ukugcina ukusebenza kakuhle kwenkqubo kunye nokhuseleko.

ULondolozo lwezona ndlela zilungileyo zokuqinisekisa uBomi obude

Ukugcinwa rhoqo kwandisa ubomi bevalve. Nantsi indlela endiyigcina ngayo ikwimeko ephezulu:

• Ukuhlolwa rhoqo: Ndicwangcisa iitshekhi eziqhelekileyo zokugqoka kunye nokukrazula, kugxininise kwiitywina kunye nokudibanisa.
• Ukucoca: Ndicoca ivalve ukuze ndisuse nayiphi na inkunkuma enokuchaphazela ukusebenza kwayo.
• Ukuthambisa: Ndifaka izithambiso ezifanelekileyo kwiindawo ezihambayo ukuqinisekisa ukusebenza kakuhle.

Isikhumbuzi: Ukugcinwa okuhambelanayo akugcini nje ukwandisa ukusebenza kodwa kuhambelana nemigangatho ebekwe ngabavelisi be-valve ephezulu yomlilo.

Kutheni ukhetha i-NB yoMlilo weHlabathi kunye nabavelisi beValve yoMlilo abaPhezulu beHydrant

Ukuthotyelwa kweMigangatho yeHlabathi

Ndihlala ndibeka phambili izixhobo zokhuseleko lomlilo ezihambelana nemigangatho yamazwe ngamazwe. Oku kuqinisekisa ukuba izixhobo zivavanywa ngokuqatha kunye nesiqinisekiso. Umzekelo:

• Iimveliso eziqinisekisiweyo ezifana noxinzelelo lwe-Valve E yokunciphisa i-E iqinisekisa ukusebenza okuthembekileyo ngexesha likaxakeka.
• Banciphisa umngcipheko wokusilela, okunokukhokelela ekusasazeni umlilo kunye nokubeka ubomi esichengeni.
• Izixhobo ezingathobeliyo zihlala zisilela ngamaxesha anzima, zibeka impahla kunye nabantu emngciphekweni.

I-valve yoHlobo lwe-E, eyenziwa yi-NB World Fire, idibana ne-BS 5041 Icandelo le-1 kunye ne-ISO 9001: imigangatho ye-2015. Ezi zatifikethi zindinika uxolo lwengqondo, ukwazi ukuba ivalve iya kwenza njengoko bekucetyiwe xa kubaluleke kakhulu.

Ugcino lweendleko zeXesha elide kunye nokuthembeka

Utyalo-mali kwizixhobo zokhuseleko lomlilo ezikumgangatho ophezulu konga imali ngokuhamba kwexesha. Ndiye ndaqaphela ukuba iimveliso ezithembekileyo zinciphisa iindleko zokugcinwa kunye nokwandisa ubomi beenkqubo zomlilo. Ivalve yoHlobo lwe-E, kunye nolwakhiwo oluqinileyo lobhedu, imelana neemeko ezinzima. Ukukwazi kwayo ukugcina uxinzelelo oluhambelanayo kwakhona kuthintela ukunxiba kunye nokukrazula kwamanye amacandelo enkqubo.

Ngokukhetha i-NB World Fire, ndiyazuza kwiimveliso ezomeleleyo ezifuna ukutshintshwa rhoqo. Oku kuthembeka kwexesha elide kuguqulela kwindleko ebalulekileyo yokonga. Ndikwabulela amaxabiso akhuphisanayo anikezelwa yi-NB World Fire, elinganisa ukufikeleleka kunye nomgangatho.

Indima yabavelisi abaPhezulu ekuqinisekiseni uMgangatho

Abavelisi abaphezulu njenge-NB World Fire badlala indima ebalulekileyo ekunikezeni izixhobo zokhuseleko lomlilo ezikumgangatho ophezulu. Xa ukhetha umenzi, ndiqwalasela izinto ezininzi:

• Udumo: Ndiphanda ngophononongo kunye nobungqina bokuqinisekisa ukuba umenzi unerekhodi eyomeleleyo.
• Ukwenza ngokwezifiso: I-NB World Fire inikezela ngeenkonzo ze-OEM, endivumela ukuba ndilungelelanise iimveliso kwiimfuno ezithile.
• Uxhaso lobuchwepheshe: Inkonzo yabathengi ephendulayo iqinisekisa ukuba ndifumana uncedo kumjikelo wobomi bemveliso.
• Ixabiso: Ndijonge ibhalansi phakathi kweendleko zangaphambili kunye neenzuzo zexesha elide.

I-NB World Fire igqwesile kuzo zonke ezi ndawo. Ukuzibophezela kwabo kumgangatho kunye nokwaneliseka kwabathengi kubenza babe negama elithembekileyo phakathi kwabavelisi beevalvu eziphezulu zomlilo.

Uhlobo lwe-Valve E yokunciphisa uxinzelelo ludlala indima ebalulekileyo ekulawuleni uxinzelelo lwamanzi aphezulu kwiinkqubo zomlilo. Uyilo lwayo oluqinileyo kunye nokuthotyelwa kwemigangatho yamazwe ngamazwe iqinisekisa ukusebenza okuthembekileyo. Ndiyakuxabisa ukulungelelaniswa kwayo, ngokukodwa kunye neempawu ezifana nezicwangciso zokulungiswa kwentsimi ezivumela abacimi bomlilo ukuba baguqule uxinzelelo lwe-outlet ngexesha likaxakeka. Ukufakela okufanelekileyo, ukulinganisa, kunye nokugcinwa kubalulekile ukuze kwandiswe iingenelo zayo.

• Imiba ephambili yokuguquguquka kwayo ibandakanya:
  • Izicwangciso zoxinzelelo ezilungelelanisiweyo kwintsimi yeemeko eziguqukayo.
  • Ubunjineli obuchanekileyo bokuqinisekisa ukusebenza okufanayo.

Ukukhetha i-NB World Fire iqinisekisa umgangatho kunye nokuthembeka kwexesha elide, okwenza kube ukhetho oluthembekileyo kwiinkqubo zokukhusela umlilo.

FAQ

Yintoni injongo yeValve yokuNcitshiswa koxinzelelo kwiinkqubo zomlilo?

A I-Valve yokunciphisa uxinzeleloiqinisekisa ukuba uxinzelelo lwamanzi luhlala ngaphakathi kwemida ekhuselekileyo. Ndiyibonile indlela ekhusela ngayo i-overpressurization, ekhusela izixhobo kunye nokuqinisekisa ukucinywa komlilo okusebenzayo. Licandelo elibalulekileyo lokugcina ukuthembeka kwenkqubo kunye nokhuseleko ngexesha likaxakeka.

Ndazi njani ukuba i-PRV E Type iyahambelana nesixokelelwano sam somlilo?

Ungajonga iinkcukacha zenkqubo, kubandakanywa uxinzelelo lokungena kunye nesantya sokuhamba. Uhlobo lwe-PRV E lubamba ukuya kwi-20 imivalo yoxinzelelo lwe-inlet kwaye inikezela ubuncinci bezinga lokuhamba kwe-1400 ilitha ngomzuzu. Ndihlala ndincoma ukubonisana nezikhokelo zomenzi ngokuhambelana.

Kufuneka ndilugcine kangaphi udidi lwePRV E?

Ndicebisa ukuba kucwangciswe iitshekhi zesondlo rhoqo emva kweenyanga ezintandathu. Ukuhlolwa rhoqo, ukucocwa, kunye nokuthambisa kuqinisekisa ukuba ivalve isebenza ngokufanelekileyo. Ukulandela le nkqubo kunceda ukwandisa ubomi bayo kwaye ugcine inkqubo yakho yomlilo ihambelana nemigangatho yokhuseleko.

Ngaba uhlobo lwe-PRV E luyakwazi ukuphatha uxinzelelo oluguquguqukayo lokungena?

Ewe, inako. Ndiyibonile indlela uyilo lwayo olugcina ngayo uxinzelelo lokuphuma rhoqo, nokuba uxinzelelo lokungena luhluka phakathi kwe-7 kunye ne-20 imivalo. Oku kuguquguquka kuqinisekisa ukusebenza okungaguqukiyo, okubalulekileyo ekucutheni umlilo okusebenzayo.

Kutheni le nto kufuneka ndikhethe i-NB World Fire kwizixhobo zokhuseleko lomlilo?

I-NB World Fire inikezela ngeemveliso ezikumgangatho ophezulu ezihlangabezana nemigangatho yamazwe ngamazwe njenge-BS 5041 Icandelo 1 kunye ne-ISO 9001:2015. Ndiyabuthemba ubuchule babo, njengoko bebonelela ngezisombululo ezomeleleyo, ezithembekileyo, kunye nezinokwenziwa ngokwezifiso kwiimfuno ezahlukeneyo zokukhusela umlilo. Ukuzibophelela kwabo ekwanelisekeni kwabathengi kubenza bahluke.