Ukukhetha izinto ezifanelekileyo kwivalve yombhobho womlilo kubalulekile ekuqinisekiseni ukusebenza kwexesha elide kunye nokuthembeka. I-aluminiyam kunye nobhedu, ezona zinto zimbini zixhaphakileyo, zibonelela ngeenzuzo ezahlukeneyo. I-Aluminiyam ilula kwaye ibiza imali, ngelixa ubhedu lunika amandla aphezulu kunye nokumelana nokubola. Kwizicelo ze-OEM, ukhetho lwezinto eziphathekayo luchaphazela ngokuthe ngqo ukuqina kunye nokusebenza. Iimathiriyeli ezikumgangatho ophezulu, ezinjengezinyithi ezinganyangekiyo ku-corrosion, iivalvu zoncedo zimelana nemekobume erhabaxa kunye nokusetyenziswa okwandisiweyo. Ukukhetha kakubi kunokukhokelela ekunxibeni kwangaphambili okanye ukungaphumeleli. I-aluminiyam ilungele usetyenziso olufuna izinto ezinobunzima obukhaphukhaphu, ngelixa ubhedu lugqwesa kwiindawo ezifuna ukuqina.

Izinto eziphambili zokuThatha

• Khetha i-aluminiyam ukuba ufuna ukukhanya kunye neevalvu zesixhobo sokucima umlilo esingabizi kakhulu. Ubunzima bayo obuphantsi benza kube lula ukuyisebenzisa kunye nokuyifaka, ukonga imali emsebenzini.
• Yiya ngobheduiivalvu ezomeleleyo neziqinileyokwiimeko ezinzima. I-Brass isebenza kakuhle phantsi koxinzelelo olunzima kwaye ihlala ixesha elide.
• Cinga ngokhuseleko lomhlwa xa ukhetha izinto. I-Aluminiyam inomaleko wendalo omisa umhlwa, kodwa ubhedu ludinga ukunakekelwa kwiindawo ezimanzi.
• Jonga kwiiindleko zizonke ngokuhamba kwexesha. I-aluminiyam inexabiso eliphantsi ukuthenga nokulungiswa, kodwa ubhedu luhlala ixesha elide, nto leyo enokwenza ixabiso layo eliphezulu lixabiseke.
• Khangela ukuba iivalvu zilandela imigaqo yokhuseleko. Qinisekisa ukuba banezatifikethi ezifana ne-UL, FM, kunye ne-ISO yokhuseleko kunye nokuthembela.

Iipropati zeMathiriyeli yeeValuvu zeHydrant yoMlilo

Ukomelela kunye noKuhlala ixesha elide

Amandla eAluminiyam

Xa kuziwa kumandla, i-aluminiyam inika umlinganiselo wamandla obunzima. Ngokuxhomekeke kwi-alloy, amandla ayo anamandla avela kwi-70 MPa ukuya kwi-700 MPa. Oku kuyenza ibe lukhetho oluguquguqukayo kwizicelo ezifuna izinto ezikhaphukhaphu kodwa ezomeleleyo. Amandla aphezulu e-aluminium alloys, afana ne-7075-T6, inokugqithisa ubhedu kumandla obunzima ngelixa igcina ubunzima obuphantsi kakhulu. I-Aluminiyam iphinda igqwese kwiimeko zokulayisha eziguquguqukayo, njengoko ukuguquguquka kwayo kuvumela ukuba ifunxe kwaye isasaze kwakhona uxinzelelo ngokufanelekileyo. Oku kuyenza ukuba ifaneleke ngokukodwa kwiivalvu zombhobho womlilo ezisetyenziswa kwiindawo ezinoxinzelelo oluphezulu.

Amandla obhedu

Ubhedu, kwelinye icala, luyaziwa ngamandla ayo okuqina, ngokuqhelekileyo ukusuka kwi-250 MPa ukuya kwi-500 MPa. Ubulukhuni bayo obuphakathi kunye nokuqina kwayo kuyenza ilungele usetyenziso olunzima apho amandla abaluleke kakhulu. Ngokungafani ne-aluminium, ubhedu lubonelela ngokusebenza okuhambelanayo phantsi kwemithwalo ye-static, okwenza kube yinto ethembekileyo yokukhetha i-valve ye-hydrant yomlilo kwiimeko ezifunekayo. Ikhono layo lokumelana nokugqoka kunye nokukrazula ixesha liqinisekisa ukusebenza okuhlala ixesha elide, ngakumbi kwiindawo zoshishino.

Ukunyangwa kokuMhlwa

IAluminiyam yoKunyangwa kokuNgxunyeka

I-Aluminiyam ivelele ngenxa yayoukuxhathisa umhlwa okungaqhelekanga, ngenxa yomaleko we-oxide wendalo. Lo maleko okhuselayo ukhusela izinto kumswakama kunye nongcoliseko, okwenza kube yinto efanelekileyo kwiindawo zangaphandle. Iivalvu zombhobho womlilo ezenziwe nge-aluminiyam zisebenza kakuhle kwiimeko ezinzima, kubandakanywa ukuvezwa kwemvula, ukufuma, kunye nezinto ezingcolisayo. Oku kuqina kunciphisa imfuno yokugcinwa rhoqo, ukuqinisekisa ukuthembeka kwexesha elide.

Ukunyangwa kweBrass's Corrosion

Ubhedu, ngelixa lomelele, luchaphazeleka ngakumbi ekungcolisweni kunye nokukhutshwa kwe-dezincification kwiindawo ezifumileyo okanye ezityebileyo ngechloride. Ezi zinto zinokusenza buthathaka isakhiwo sayo ngokuhamba kwexesha. Nangona kunjalo, ngokugcinwa okufanelekileyo kunye neengubo zokukhusela, ubhedu lusenokwenza ngokufanelekileyo kwiindawo ezinobungozi obuncinci. Kwimibhobho yokucima umlilo esetyenziswa kwiindawo ezilawulwayo, ubhedu luhlala luyinto efanelekileyo.

Ubunzima kunye nokuPhathwa

Aluminiyam's Lightweight Benefits

Uxinzelelo oluphantsi lwe-aluminiyam ye-2.70 g/cm³ iyenza ibekhaphukhaphu kakhulu kunobhedu. Le ndalo ilula yenza lula ukuphatha kunye nofakelo, ngakumbi kwizicelo apho ubunzima buyinto ebalulekileyo. Iivalve zombhobho womlilo ezenziwe nge-aluminiyam kulula ukuthutha nokuzifaka, ukunciphisa iindleko zabasebenzi kunye nomgudu. Olu ncedo luluncedo ngakumbi kwiiprojekthi ezinkulu okanye kwiindawo ezikude.

Iimpembelelo zobunzima beBrass

Ubhedu, obunobunzima obusuka kwi-8.4 ukuya kwi-8.7 g/cm³, bubunzima kakhulu kune-aluminiyam. Nangona obu bunzima bongeziweyo bunegalelo kumandla kunye nokuqina, kunokubeka imingeni ngexesha lokuphatha kunye nokufakwa. Iivalve zomlilo ezenziwe ngobhedu zinokufuna inkxaso eyongezelelweyo okanye izixhobo zokufakela, ukwandisa iindleko zeprojekthi jikelele. Nangona kunjalo, ubunzima obongezelelweyo bunokubonelela ngokuzinza kwizicelo ezithile, ukwenza ubhedu lube lukhetho olukhethiweyo kwiimeko ezithile.

Ukuqwalaselwa kweendleko kwiiValuvu zeHydrant yoMlilo

Iindleko Zezinto Zokuqala

Iindleko zeAluminiyam

IAluminiyam inikezela ngeisisombululo esingabizi kakhulukwiivalvu zombhobho womlilo. Ubuninzi bayo kunye nokulula kwemveliso kunegalelo ekufikeleleni kwayo. Xa kuthelekiswa nobhedu, ialuminiyam inexabiso eliphantsi, nto leyo eyenza ukuba ibe lukhetho olunomtsalane kwiiOEMs ezijolise ekunciphiseni iindleko zokuqala. Ukongezelela, ukuphinda kusetyenziswe kwakhona kuqinisekisa ukubonelela ngokuzinzileyo, ukunciphisa umngcipheko wokuguquguquka kwexabiso.

Iindleko zobhedu

Ubhedu, ngelixa lomelele kwaye luthembekile, luthande ukuba njaloibiza kakhulu ngenxaumxholo wayo wobhedu kunye nenkqubo yokuvelisa amandla ngamandla. Umzekelo:

• Iivalvu zomlilo zobhedu ziqhele ukusuka kwi-0.15 yeedola ukuya kwi-5 yeedola kwisiqwenga ngasinye.
• Iivalve ze-Storz fire hydrant, ezihlala zisebenzisa ubhedu, zivela kwi-$ 12.00 ukuya kwi-$ 16.00.

Ezi ndleko ziphezulu zibonisa amandla kunye nokusebenza kwemathiriyeli kodwa kunokubangela umngeni kwiiprojekthi ezijonga uhlahlo lwabiwo-mali.

Iindleko zoLondolozo lweXesha elide

Ukugcinwa kweeValuvu zeAluminiyam

Iivalvu ze-aluminiyam zifuna ukugcinwa okuncinci ngenxa yokunganyangeki kwendalo. Umaleko we-oxide owenzeka kumphezulu we-aluminiyam ukhusela umonakalo wokusingqongileyo, ukunciphisa imfuno yokulungiswa rhoqo okanye ukutshintshwa. Olu phawu lwenza i-aluminium ibe yindleko-yokukhetha ukusetyenziswa kwexesha elide kwiimeko zangaphandle okanye ezifumileyo.

ULondolozo lweeValufa zeBrass

Iivalvu zobhedu zifuna ingqalelo engakumbi ukugcina ingqibelelo yazo. Kwiindawo ezityebileyo zekloridi okanye ezifumileyo kakhulu, ubhedu lunokufumana i-dezincification, eyenza buthathaka izinto ngokuhamba kwexesha. Ukuhlolwa rhoqo kunye neengubo zokukhusela ziyimfuneko ukwandisa ixesha lokuphila kwee-valve zobhedu zomlilo. Ngelixa la manyathelo aqinisekisa ukuhlala ixesha elide, anyusa neendleko zokuyigcina.

Ixabiso lomjikelo wobomi

Iindleko zoBunini zeAluminiyam

I-Aluminiyam ibonelela ngexabiso elincomekayo lomjikelo wobomi ngenxa yeendleko zayo zokuqala eziphantsi kunye neemfuno zokugcinwa okuncinci. Ubume bayo obukhaphukhaphu bunciphisa iindleko zothutho kunye nofakelo, ngakumbi ukukhulisa iindleko-ukusebenza kwayo. Ukongeza, ukuzinza kwe-aluminiyam kunye nokusetyenziswa kwakhona kunegalelo kwisibheno sayo kwiiprojekthi ezikhathalela indalo esingqongileyo.

Ixabiso lilonke leBrass lobunini

I-Brass ibonelela ngeendleko eziphezulu zangaphambili kodwa ibuyekeza ukuqina kwayo kunye nokuthembeka kwizicelo ezifunayo. Nangona ifuna ukugcinwa okungakumbi, ukukwazi kwayo ukumelana nokuguga kuqinisekisa ukusebenza kwexesha elide. Kumashishini abeka phambili amandla kunye nokusebenza, ubhedu luhlala lutyalo-mali oluxabisekileyo.

Itheyibhile yokuthelekisa

Ukufaneleka kokusetyenziswa kweeValuvu zeHydrant yoMlilo

Imiba yokusingqongileyo

I-Aluminiyam kuBubushushu obugqithisileyo

I-Aluminiyam iqhuba kakuhle kwiimeko zokushisa ezigqithisileyo ngenxa ye-conductivity yayo ye-thermal egqwesileyo kunye nokuchasana nokwandiswa kwe-thermal. Oku kuyenza ibe lukhetho oluthembekileyo kwiivalvu zombhobho womlilo ezivezwe kumaqondo obushushu aguqukayo. Ikhono le-Aluminiyam lokuchitha ubushushu ngokukhawuleza liqinisekisa ukuba ligcina ingqibelelo yesakhiwo nakwiindawo eziphakamileyo zobushushu. Ukongeza, ubume bayo obukhaphukhaphu bunciphisa uxinzelelo kumacandelo adibeneyo, ukuphucula ukusebenza kwenkqubo ngokubanzi.

IBrass kumaqondo obushushu obugqithisileyo

I-Brass inika uzinzo oluphezulu lwe-thermal, iyenza ibe yinto efanelekileyo kwizicelo ezifuna ukusebenza okungaguqukiyo kubushushu obukhulu. Indawo yayo ephezulu yokunyibilika kunye nokuqina kuvumela ukuba imelane nokuvezwa ixesha elide kumaqondo obushushu aphezulu ngaphandle kokukhubazeka. Iivalve ze-Brass fire hydrant zisebenza ngokukodwa kwiindawo zoshishino apho ukumelana nobushushu kubaluleke kakhulu. Nangona kunjalo, kwiimeko zokukhenkceza, ukuqina kobhedu kunokwenza kube lula ukuqhekeka phantsi kotshintsho olukhawulezileyo loxinzelelo.

Iimfuno zokuSebenza

IAluminiyam yeeNkqubo zoxinzelelo oluphezulu

I-aluminium igqwesa kwiinkqubo eziphezulu zoxinzelelo ezifuna ukuguquguquka kunye nokumelana nokukhathala. Ukukwazi kwayo ukufunxa kunye nokusabalalisa kwakhona uxinzelelo kuyenza ifaneleke kwizicelo eziguquguqukayo ezinoxinzelelo oluhlukeneyo kunye namazinga okuhamba. Iinzuzo eziphambili ziquka:

• Ukwakhiwa okulula, ukunciphisa uxinzelelo kwinkqubo.
• Ukumelana nokudinwa okuphezulu, ukuqinisekisa ukuqina phantsi kwemijikelezo yoxinzelelo oluphindaphindiweyo.
• Umlinganiselo ophezulu wamandla-to-weight, oxhasa ukusebenza ngokufanelekileyo kwiindawo ezifunayo.

IBrass yeeNkqubo zoxinzelelo oluphezulu

I-Brass yimathiriyeli yokuya kwi-static load applications efuna ukuqina kunye nokumelana nokunxiba. Ukuqina kwayo kunye namandla okuqina kwenza kube yinto efanelekileyo kwiivalve ze-hydrant fire hydrant ezisebenza phantsi koxinzelelo oluphezulu olungaguqukiyo. Ngelixa i-flexible encinci kune-aluminium, ubhedu lunika ukuqina okungenakulinganiswa kwiinkqubo apho ukuchasana kwempembelelo kunye nokuthembeka kwexesha elide zizinto eziphambili.

Usetyenziso olungqale kwishishini

Aluminiyam kwi-OEM Applications

Iivalvu ze-aluminiyam yokucima umlilo zisetyenziswa ngokubanzi kwiizicelo OEMngenxa yobukhaphukhaphu babo kunye nendalo engabiziyo. Zifaneleke ngokukodwa kwiinkqubo ezifuna amacandelo aguqukayo okanye ulungelelwaniso lwesiko. Ukurisayiklishwa kwakhona kwe-aluminiyam kuyenza ibe lukhetho oluhambelana nokusingqongileyo kumashishini abeka phambili uzinzo.

Ubhedu kwi-OEM Applications

Ubhedu luhlala luyinto ekhethwayo kwizicelo ze-OEM ezifuna ukuqina kunye namandla. Ikhono layo lokumelana nokugqoka kunye nokukrazula kwenza kube yinto efanelekileyo kwiinkqubo zokukhusela umlilo kunye neenkqubo zokutshiza. Iivalve zeBrass zihlala zikhethwa ngenxa yokuthembeka kwazo ekulawuleni ukuhamba kwamanzi kwimisebenzi yokucima umlilo.

Ulawulo kunye neMigangatho yoShishino lweeValuvu ze-Fire Hydrant

Imigangatho Efanelekileyo

Imigangatho ye-API

Ndihlala ndigxininisa ukubaluleka kokuthobela imigangatho ye-API (i-American Petroleum Institute) xa ukhetha izinto ezisetyenziselwa iivalve zomlilo. Le migangatho iqinisekisa ukuba iivalvu ziyahlangabezana nokusebenza ngokungqongqo kunye nebenchmarks zokhuseleko. Iivalve eziqinisekisiweyo ze-API zibonisa ukuthembeka phantsi kweemeko zoxinzelelo kunye nobushushu obuphezulu. Kwii-OEMs, ukuthotyelwa kwemigangatho ye-API kuqinisekisa ukuba iivalvu ziyakwazi ukujongana neendawo zokusebenza ezifunayo ngaphandle kokuphazamisa ukhuseleko.

I-JIS kunye neMigangatho ye-BS

Ukongeza kwi-API, ndihlala ndincoma ukuqwalasela i-JIS (iMigangatho yoShishino lwaseJapan) kunye ne-BS (iMigangatho yaseBrithani) iziqinisekiso. Imigangatho ye-JIS igxininisa ekuchanekeni kunye nomgangatho, izenza zilungele usetyenziso olufuna ukuchaneka okungqongqo komda. Imigangatho ye-BS, kwelinye icala, igxininisa ukuqina kunye nokhuseleko, ngakumbi kwimizi-mveliso kunye nezicwangciso zikamasipala. Ngokuhlangabezana nale milinganiselo yamazwe ngamazwe, iivalvu ze-fire hydrant zifumana ukwamkelwa kwihlabathi jikelele, ziqinisekisa ukuhambelana kunye nokuthembela kwiimarike ezahlukeneyo.

Iziqinisekiso kunye nokuThobela

Izatifikethi zeAluminiyam yeValve

Iivalvu ze-aluminiyam kufuneka zihambelane nezatifiketi ezifana ne-UL (Underwriters Laboratories), i-FM (i-Factory Mutual), kunye ne-ISO (i-International Organization for Standardization). Ezi ziqinisekiso ziqinisekisa ukukwazi kweevalvu ukumelana noxinzelelo lokusingqongileyo kunye nokugcina ukusebenza ngexesha. Ndifumanisa ukuba iziqinisekiso ze-UL kunye ne-FM zibaluleke kakhulu ekuqinisekiseni ukhuseleko lomlilo, ngelixa imigangatho ye-ISO iqinisekisa umgangatho kunye nokuhambelana kweevalvu. Ukungathobeli kunokukhokelela kwimingcipheko yokhuseleko kunye nemingeni esemthethweni, ngoko ke ndihlala ndibeka phambili iimveliso eziqinisekisiweyo.

Iziqinisekiso zeValve yobhedu

Iivalvu zobhedu nazo zifuna i-UL, i-FM, kunye neziqinisekiso ze-ISO ukuhlangabezana nokulindelweyo kushishino. Ezi ziqinisekiso ziqinisekisa ukuba iivalve ziyakwazi ukunyamezela iimeko ezinzima, kubandakanywa uxinzelelo oluphezulu kunye neendawo ezinobungozi. Ndihlala ndigxininisa ukuba iivalvu zobhedu ezinezi zatifikethi zibonelela ngokuthembeka okuphuculweyo kunye nobomi obude. Kwi-OEMs, utyalo-mali kwiivalvu zobhedu eziqinisekisiweyo kunciphisa umngcipheko wokusebenza kwaye uqinisekisa ukuthotyelwa kweemfuno zolawulo.

Ingcebiso: Soloko uqinisekisa ukuba iivalvu zakho zombhobho womlilo zithwala izatifikethi eziyimfuneko. Eli nyathelo aliqinisekisi ukhuseleko kuphela kodwa likwakhusela kumatyala anokubakho.

I-aluminiyam kunye nobhedu zibonelela ngezibonelelo ezahlukileyo kwiivalvu zombhobho womlilo. I-Aluminiyam ibonelela ngolwakhiwo olukhaphukhaphu, ukusebenza kakuhle kweendleko, kunye nokumelana nokugqwesa okugqwesileyo, kuyenza ilungele usetyenziso oluguquguqukayo okanye olukhulu. I-Brass, kunye namandla ayo aphezulu kunye nokuqina, iyagqwesa kwiindawo ezibango ezifuna ukuthembeka kwexesha elide. Ii-OEMs kufuneka zibeke phambili izixhobo ezihlangabezana nemigangatho yoshishino efana ne-UL, FM, okanye izatifikethi ze-ISO ukuqinisekisa ukhuseleko nokuthotyelwa. Ukukhetha iintsimbi ezinganyangekiyo ku-corrosion kwandisa ukuqina, kunciphisa iindleko zokuzigcina, kwaye kwandisa ubomi benkqubo. Ukulungelelanisa ukhetho lwezinto eziphathekayo kunye neenjongo zokusebenza kuqinisekisa ukusebenza kakuhle kunye neendleko ezifanelekileyo.

FAQ

Ngowuphi umahluko ophambili phakathi kwe-aluminiyam kunye neevalvu zesibhobho somlilo sobhedu?

Iivalvu ze-aluminiyam zikhaphukhaphu, zingabizi kakhulu, kwaye ziyakwazi ukumelana nomhlwa, nto leyo ezenza zilungele ukusetyenziswa kwezixhobo eziguquguqukayo. Iivalve zeBrass, kwelinye icala, zinika amandla aphezulu, ukuqina, kunye nokuzinza kwe-thermal, ukugqwesa kwiindawo ezifunayo. Ndincoma ukukhetha ngokusekelwe kwiimfuno zakho zokusebenza ezithile kunye neemeko zokusingqongileyo.

Ndingenza njani isigqibo sokuba yeyiphi imathiriyeli engcono kwisicelo sam?

Qwalasela izinto ezifana nokuba sesichengeni kokusingqongileyo, iimfuno zoxinzelelo, kunye nohlahlo lwabiwo-mali. I-Aluminiyam ifaneleka lula, iimfuno ezixhathisayo ku-corrosion, ngelixa ubhedu lusebenza kakuhle kwiinkqubo ezinzima, ezinoxinzelelo oluphezulu. Ndihlala ndicebisa ukulungelelanisa ukukhethwa kwezinto kunye neenjongo zakho zokusebenza kunye nemigangatho yoshishino yokusebenza kakuhle.

Ngaba iivalvu ze-aluminiyam yombhobho womlilo zomelele ngokwaneleyo ukuba zingasetyenziswa ngaphandle?

Ewe, iivalvu zealuminiyam zisebenza kakuhle ngaphandle. Umaleko wabo wendalo oxide ukhusela ukufuma, ungcoliseko, kunye nokudleka. Ndizifumana zisebenza ngokukodwa kwindawo ezifumileyo okanye ezinemvula, apho zifuna ukugcinwa okuncinci kwaye zibonelela ngokuthembeka kwexesha elide.

Ngaba iivalvu zobhedu zifuna ulondolozo olungaphezulu kuneevalvu ze-aluminiyam?

Iivalve zobhedu zidinga ukuhlolwa rhoqo kunye neengubo ezikhuselayo, ngakumbi kwiindawo ezityebileyo okanye ezifumileyo, ukukhusela i-dezincification. Iivalvu ze-aluminiyam, kunye nokuxhathisa kwazo kwendalo, zifuna ukugcinwa okuncinci. Ndincoma ukuvavanya iindleko zokulondoloza xa ukhetha imathiriyeli yeevalvu zakho zombhobho womlilo.

Ngaba zombini i-aluminiyam kunye neevalvu zobhedu ziyahlangabezana nemigangatho yoshishino?

Ngokuqinisekileyo. Zombini izixhobo zinokuthobela iziqinisekiso ezifana ne-API, i-JIS, i-BS, i-UL, i-FM, kunye ne-ISO. Ndihlala ndigxininisa iziqinisekiso zokuqinisekisa ukuqinisekisa ukhuseleko, ukuthembeka, kunye nokuthotyelwa kweemfuneko zolawulo. Iivalvu eziqinisekisiweyo ziqinisekisa ukusebenza kunye nokunciphisa iingozi zokusebenza.