Litsamaisong tsa lipeipi tsa metsi, mofuta oa likhokahano tse sebelisitsoeng o bapala karolo ea bohlokoa ho netefatsa ts'ebetso le katleho ea sistimi.Mofuta o mong oa khokahano o sebelisoang haholo ke NPT, e emelang National Pipe Tapered.Lihokelo tsa NPT li tsebahala ka ho ts'epahala le ho feto-fetoha ha tsona, e leng se etsang hore e be khetho e tsebahalang liindastering tse fapaneng.Ho tloha ho lipeipi tsa bolulo ho isa lits'ebetsong tsa indasteri, likhokahano tsa NPT li fana ka tiiso e sireletsehileng le e sa duleng, e netefatsang phallo e thellang ea metsi kapa likhase.
Sengoliloeng sena, re tla shebana le lefats'e la likhokahano tsa NPT, re u fa kutloisiso e felletseng ea likarolo tsa bona, melemo le lits'ebetso.Hore na o mong'a ntlo ea batlang ho utloisisa tsamaiso ea lipeipi ka tlung ea hau kapa setsebi sa plumber se batlang ho ntlafatsa tsebo ea hau, sengoloa sena se etselitsoe ho u hlomella ka lintlha tsohle tse hlokahalang mabapi le likhokahano tsa NPT.Ho tloha ho hlalosa moralo oa ho theola ho buisana ka mefuta e fapaneng ea likhoele tsa NPT, re tla e akaretsa kaofela.Kahoo, ha re ikakhele ka setotsoana 'me re hlahlobe lefatše la likhokahano tsa NPT ho netefatsa hore ho na le sistimi e tšepahalang le e sebetsang ea lipeipi tsa metsi.
Ho utloisisa likhokahano tsa NPT
Tlhaloso le Semelo sa likhokahano tsa NPT
Mefuta ea khokahano ea NPT (National Pipe Tapered) e sebelisoa haholo liindastering tse fapaneng, ho kenyeletsoa lipeipi tsa metsi, oli le khase, le tlhahiso.Lihokelo tsena li etselitsoe ho fana ka tiiso e tšepahalang le e sa lutleng lipakeng tsa liphaephe le lisebelisoa.Tekanyetso ea NPT e ntlafalitsoe ke American National Standards Institute (ANSI) ho etsa bonnete ba ho lumellana le ho feto-fetoha ha lipeipi.
Khokahano ea NPT e na le moralo oa likhoele tse tapered, ho bolelang hore bophara ba likhoele bo fokotseha butle-butle ho ea qetellong ea phala.Moralo ona oa ho thetheha o phetha karolo ea bohlokoa ho theheng tiiso e tiileng lipakeng tsa likhoele tse tona le tse tšehali.Likhoele li khaoloa ka lehlakoreng la likhato tse 60, ho li lumella hore li kopane ka thata ha khokahano e tiisitsoe.
Moralo oa ho Tapering le Bohlokoa ba Oona ho Hlahiseng Tiiso
Moralo o thata oa likhokahano tsa NPT o bohlokoa bakeng sa ho theha tiiso e tšepahalang e ka mamellang khatello e phahameng le ho thibela ho lutla.Ha likhoele tse tona le tse tšehali li tiisitsoe, libaka tse tapered lia kopana, ho etsa tiiso ea tšepe ho ea ho tšepe.Tiiso ena e sebetsa haholo ho thibela ho tsoa ha mokelikeli kapa khase, ho etsa hore likhokahano tsa NPT li lokele lits'ebetso moo ho hlokahalang lenonyeletso le sireletsehileng le le sa lutleng.
Sebopeho sa tapering se boetse se fana ka thepa ea ho itšireletsa, e leng se bolelang hore ha ho ntse ho tiisoa le ho feta, tiiso e ba thata haholoanyane.Sena se bakoa ke ketso ea ho nyalana ea likhoele tse tapered, tse hatellang thepa le ho etsa tiiso e tiileng.Leha ho le joalo, ke habohlokoa ho hlokomela hore ho tiisa ho feta tekano ho ka lebisa ho senyeha ha khoele kapa esita le ho robeha, kahoo ke habohlokoa ho latela mekhoa e nepahetseng ea ho kenya.
Likarolo tse Fapaneng tse Kenyellelitsoeng Khokelong ea NPT
Khokahano ea NPT e na le likarolo tse peli tsa mantlha: likhoele tsa banna le basali.Khoele e tona e fumanoa ka ntle ho phaephe kapa ho kenya, ha khoele e tšehali e fumanoa ka hare.Khoele e tona e na le ntlha e tepeletseng, ha khoele e tšehali eona e na le lesoba le nang le tepe e lumellanang.
E le ho etsa hore ho be le khokahanyo e sireletsehileng, khoele e tona e kenngoa khoeleng e tšehali ebe e tiisoa ka ho e potoloha ho ea ka nako ea oache.Ha likhoele li ntse li kopanela, libaka tse tapered lia kopana, 'me li etsa tiiso.Ho bohlokoa ho etsa bonnete ba hore likhoele li tsamaellana hantle pele li tiisa ho qoba likhoele tse tšekaletseng, tse ka bakang khokahanyo e fosahetseng.
Bohlokoa ba Mekhoa e Nepahetseng ea Kemiso bakeng sa likhokahano tsa NPT
Mekhoa e nepahetseng ea ho kenya e bohlokoa bakeng sa ho netefatsa botšepehi le nako e telele ea likhokahano tsa NPT.E 'ngoe ea lintlha tsa bohlokoa tsa ho kenya ke ho sebelisa torque e nepahetseng ha u tiisa khokahano.Ho tiisa ka tlase ho ka baka khokahanyo e hlephileng le ho lutla ho ka bang teng, athe ho tiisa ho feta tekano ho ka senya likhoele le ho senya tiiso.
Ntho e 'ngoe ea bohlokoa eo ho nahanoang ka eona ke tšebeliso ea li-sealants tsa khoele kapa tepi.Lihlahisoa tsena li thusa ho ntlafatsa tiiso ka ho tlatsa likheo leha e le life kapa ho se phethahale likhoeleng.Ho bohlokoa ho khetha sealant kapa tepi e lumellanang le mokelikeli kapa khase e tsamaisoang le ho e sebelisa ka nepo ho latela litaelo tsa moetsi.
Ho hlahlojoa le ho hlokomeloa khafetsa ha likhokahano tsa NPT le hona ho bohlokoa ho tseba matšoao a ho felloa ke matla, ho bola, kapa tšenyo.Lihokelo life kapa life tse senyehileng kapa tse tsofetseng li lokela ho nkeloa sebaka hang hang ho thibela ho lutla le ho netefatsa polokeho ea sistimi.
Melemo ea likhokahano tsa NPT
Melemo ea ho sebelisa likhokahano tsa NPT lits'ebetsong tse fapaneng
Likhokahano tsa NPT (National Pipe Tapered) li sebelisoa haholo liindastering tse fapaneng ka lebaka la melemo ea tsona e mengata.O mong oa melemo ea mantlha ea likhokahano tsa NPT ke bokhoni ba bona ba ho fana ka lenonyeletso le sireletsehileng le le sa lutleng.Likhoele tse tapered tsa likhokahano tsa NPT li etsa tiiso e tiileng, e thibelang ho lutla ha maro kapa likhase.Sena se etsa hore likhokahano tsa NPT e be tse loketseng lits'ebetso tseo ho ts'epahalang le polokeho e leng tsona tsa bohlokoa, joalo ka liphaepheng tsa metsi, oli le khase, le indastering ea lik'hemik'hale.
Ho ikamahanya le maemo le ho tsamaellana ha likhokahano tsa NPT le lisebelisoa tse fapaneng tsa liphaephe
Molemo o mong oa likhokahano tsa NPT ke ho feto-fetoha ha tsona le ho lumellana le lisebelisoa tse fapaneng tsa liphaephe.Mahokelo a NPT a ka sebelisoa ka mefuta e mengata ea lisebelisoa, ho kenyeletsoa tšepe, koporo le polasetiki.Ho feto-fetoha ha maemo ho lumella ho hokahanngoa ho se nang moeli ha likhokahano tsa NPT litsamaisong tse teng tsa liphaephe, ho sa tsotelehe lisebelisoa tse sebelisitsoeng.Hore na ke sistimi ea hydraulic ea khatello e phahameng kapa phepelo ea metsi a khatello e tlase, likhokahano tsa NPT li ka tšeptjoa ho fana ka lenonyeletso le sireletsehileng le le tšoarellang.
Bokhoni ba likhokahano tsa NPT ho mamella khatello e phahameng le maemo a mocheso
Lihokelo tsa NPT li tsebahala ka bokhoni ba tsona ba ho mamella khatello e phahameng le maemo a mocheso.Likhoele tse tapered tsa likhokahano tsa NPT li fana ka motsoako o matla le o ka tšeptjoang o ka sebetsanang le maemo a feteletseng a ts'ebetso.Sena se etsa hore likhokahano tsa NPT li tšoanelehe bakeng sa lits'ebetso moo ho nang le tlhoko ea mokelikeli o phahameng oa khatello kapa phetisetso ea khase, joalo ka lits'ebetsong tsa mouoane kapa moo ho hloekisoang oli.Ho tiea ha likhokahano tsa NPT ho netefatsa hore li khona ho mamella maemo a thata a tikoloho a hlokang ho sekisetsa botšepehi ba lenonyeletso.
Tšebeliso e ntle ea litšenyehelo le boiketlo ba ho kenya ha ho bapisoa le mefuta e meng ea khokahanyo
Ntle le bokhoni ba bona ba ts'ebetso, likhokahano tsa NPT li fana ka katleho ea litšenyehelo le boiketlo ba ho kenya ha ho bapisoa le mefuta e meng ea likhokahano.Lihokelo tsa NPT li batla li le bonolo ho li kenya, li hloka feela lisebelisoa le mekhoa ea mantlha.Bonolo bona ba ho kenya bo fetolela ho boloka nako le litšenyehelo bakeng sa ho kenya le ho lokisa ha ho qala.Ntle le moo, likhokahano tsa NPT li fumaneha habonolo 'marakeng, li e etsa khetho e theko e tlase bakeng sa lits'ebetso tse fapaneng.
Likhokahano tsa NPT le tsona li na le monyetla oa ho sebelisoa hape.Ho fapana le mefuta e meng ea likhokahano e hlokang ho nkeloa sebaka ka mor'a ho qhaqhoa, likhokahano tsa NPT li ka kopanngoa habonolo le ho sebelisoa hape ntle le ho senya bokhoni ba tsona ba ho tiisa.Sena ha se fokotse feela litšenyehelo tse akaretsang tsa sistimi empa hape se kenya letsoho matsapeng a ts'ebetso ka ho fokotsa litšila.
Lisebelisoa tse tloaelehileng tsa likhokahano tsa NPT
Mehlala ea liindasteri le litsamaiso moo likhokahano tsa NPT li sebelisoang hangata
Likhokahano tsa NPT (National Pipe Tapered) li sebelisoa haholo indastering le lits'ebetsong tse fapaneng ka lebaka la ho feto-fetoha ha tsona le ho ts'epahala.E 'ngoe ea liindasteri tsa mantlha tse itšetlehileng haholo ka likhokahano tsa NPT ke lipeipi tsa metsi.Ebang ke libakeng tsa bolulo kapa tsa khoebo, likhokahano tsa NPT li fumaneha hangata lits'ebetsong tsa lipeipi bakeng sa phepelo ea metsi, drainage le likhoerekhoere.Likhoele tse tapered tsa likhokahano tsa NPT li fana ka lenonyeletso le sireletsehileng le le sa lutleng, le etsa hore e be tse loketseng ho netefatsa phallo e thellang ea metsi lits'ebetsong tsa lipeipi.
Indasteri e 'ngoe moo likhokahano tsa NPT li sebelisoang hangata ke indasteri ea khase.Likhokahano tsa NPT li sebelisoa hangata liphaepheng tsa khase, limithara tsa khase le lisebelisoa tsa khase.Likhoele tse tapered tsa likhokahano tsa NPT li thusa ho theha tiiso e tiileng, ho thibela ho lutla ha khase le ho netefatsa polokeho ea sistimi.Likhokahano tsena li boetse li fumaneha ka tloaelo lits'ebetsong tsa phepelo ea khase ea tlhaho, moo li fanang ka tharollo e tšepahalang le e tšoarellang bakeng sa ho hokahanya liphaephe le lisebelisoa.
Indasteri ea oli ke karolo e 'ngoe moo likhokahano tsa NPT li sebelisoang haholo.Ho tloha litsing tsa ho hloekisa oli ho ea ho ts'ebetso ea ho cheka, likhokahano tsa NPT hangata li sebelisoa bakeng sa bokhoni ba tsona ba ho sebetsana le maemo a khatello e phahameng.Lihokelo tsena li sebelisoa lits'ebetsong tse fapaneng tsa indasteri ea oli, ho kenyeletsoa liphaephe tsa oli, li-wellheads le litanka tsa polokelo ea oli.Likhoele tse tapered tsa likhokahano tsa NPT li lumella ho kengoa habonolo le ho fana ka lenonyeletso le tiileng le le hananang le ho lutla, ho etsa hore li tšoanele maemo a boima a indasteri ea oli.
Ho nepahala ha likhokahano tsa NPT bakeng sa lits'ebetso tsa bolulo le tsa khoebo
Lihokelo tsa NPT li loketse haholo lits'ebetso tsa bolulo le tsa khoebo ka lebaka la melemo ea tsona e mengata.Libakeng tsa bolulo, likhokahano tsa NPT li sebelisoa hangata lits'ebetsong tsa lipeipi tsa ho hokela liphaephe, lisebelisoa le lisebelisoa.Likhoele tse taped tsa likhokahano tsa NPT li lumella lenonyeletso le tiileng le le sireletsehileng, ho netefatsa hore ha ho na ho lutla kapa ho senyeha ha metsi.Sena se bohlokoa haholo lits'ebetsong tsa bolulo moo ho boloka metsi e leng ntho e tlang pele.Likhokahano tsa NPT li boetse li fana ka boiketlo ba ho kenya, ho li etsa khetho e ratoang bakeng sa beng ba matlo le li-plumbers ka ho tšoanang.
Likopong tsa khoebo, likhokahano tsa NPT li fana ka melemo e ts'oanang.Ebang ke meahong ea khoebo, litsing tsa indasteri, kapa litšebeletso tsa sechaba, likhokahano tsa NPT li sebelisoa haholo lits'ebetsong tsa lipeipi tsa metsi.Lihokelo tsena li fana ka tharollo e tšepahalang le e tšoarellang bakeng sa ho hokahanya liphaephe le li-fittings, esita le libakeng tse nang le khatello e phahameng.Likhoele tse tapered tsa likhokahano tsa NPT li tiisa tiiso e tiileng, e fokotsang kotsi ea ho lutla le ho netefatsa phallo e ntle ea metsi kapa maro a mang.Ho feta moo, likhokahano tsa NPT li fumaneha habonolo ebile li na le litšenyehelo tse tlase, li li etsa khetho e sebetsang bakeng sa lits'ebetso tsa khoebo.
Maemo a khethehileng a ts'ebeliso le maemo ao likhokahano tsa NPT li sebetsang hantle
Likhokahano tsa NPT li sebetsa hantle maemong a fapaneng a ts'ebeliso le maemo, ka lebaka la moralo le ts'ebetso ea tsona e ikhethang.Taba e 'ngoe e ikhethileng moo likhokahano tsa NPT li sebetsang hantle haholo ke lits'ebetsong tsa hydraulic.Maqhama ana a atisa ho sebelisoa methalong ea hydraulic fluid, moo e fanang ka lenonyeletso le sireletsehileng le le sa lutleng.Likhoele tse tapered tsa likhokahano tsa NPT li thusa ho thibela ho lutla ha mokelikeli, ho netefatsa ts'ebetso e nepahetseng ea sistimi ea hydraulic.Ebang ke mochining o boima kapa lits'ebetsong tsa makoloi, likhokahano tsa NPT li bapala karolo ea bohlokoa ho ts'epahaleng ha litsamaiso tsa haeteroliki.
Boemo bo bong moo likhokahano tsa NPT li ipabolang ke lits'ebetsong tsa moea.Likhokahano tsa NPT li sebelisoa hangata ho li-compressor tsa moea, lisebelisoa tsa moea, le lits'ebetso tsa taolo ea moea.Likhoele tse tapered tsa likhokahano tsa NPT li tiisa tiiso e tiileng, e thibelang ho lutla ha moea le ho boloka maemo a batloang a khatello.Lihokelo tsena li bohlokoa haholo indastering e kang ea ho etsa thepa, ea kaho le ea likoloi, moo litsamaiso tsa moea li sebelisoang haholo.Lihokelo tsa NPT li fana ka tharollo e tšepahalang le e sebetsang bakeng sa ho hokahanya likarolo tse fapaneng tsa sistimi ea moea.
Ho feta moo, likhokahano tsa NPT hangata li sebelisoa lits'ebetsong tsa ho nosetsa.Ebang ke molemong oa temo kapa oa ho lokisa naha, likhokahano tsa NPT li fana ka tharollo e sebetsang bakeng sa ho hokela lipeipi le lisebelisoa tsa ho nosetsa.Likhoele tse taped tsa likhokahano tsa NPT li lumella ho kengoa habonolo le ho fana ka lenonyeletso le sireletsehileng le ka mamellang khatello e phahameng ea metsi eo ka tloaelo e hlokahalang lits'ebetsong tsa nosetso.Lihokelo tsena li netefatsa phepelo e tsitsitseng ea metsi lijalong kapa lirapeng, e khothaletsa kholo e phetseng hantle le kabo e nepahetseng ea metsi.
Ho Kenngwa le Tlhokomelo ya Mahokelo a NPT
Tataiso ea mehato ea ho kenya likhokahano tsa NPT hantle
Ha ho tluoa tabeng ea ho kenya likhokahano tsa NPT, ho latela mehato e nepahetseng ho bohlokoa ho netefatsa khokahano e sireletsehileng le e sa luleng.Mona ke tataiso ea mohato ka mohato ho u thusa ho kenya likhokahano tsa NPT hantle:
Mohato oa 1: Lokisa phala le ho kenya
Pele o qala ts'ebetso ea ho kenya, ke habohlokoa ho lokisa phala le ho kenya hantle.Netefatsa hore lipeipi le ho kenya li hloekile ebile ha li na litšila, litšila kapa mafome.Sebelisa borashe ba terata kapa sandpaper ho tlosa masalla leha e le afe le ho etsa sebaka se boreleli bakeng sa ho hokahanya.
Mohato oa 2: Sebelisa sealant e loketseng
Ho fihlella khokahano e sa luleng, ho bohlokoa ho kenya sealant se nepahetseng.Theipi ea Teflon e sebelisoa hangata bakeng sa likhokahano tsa NPT kaha e fana ka tiiso e tšepahalang.Qala ka ho phuthela tepi ka lehlakoreng le fapaneng la likhoele, ho netefatsa hore ho na le tšireletso e feletseng.Kenya likarolo tse peli ho isa ho tse tharo tsa tepi, u e hatelle ka thata likhoeleng.
Mohato oa 3: Tiisa khokahano ka letsoho
Hang ha sekontiri se sebelisoa, tiisa letsoho ka letsoho.Qala ka ho lekanya likhoele 'me u qale ho fetola se loketseng pompong.Sebelisa letsoho la hau ho tiisa khokahano ka hohle kamoo ho ka khonehang.Etsa bonnete ba hore ho kenya ho hlophisitsoe hantle 'me ho lutse holim'a phala.
Mohato oa 4: Sebelisa lisebelisoa tse loketseng ho tiisa ho qetela
Ho fihlela boima bo khothaletsoang, ho bohlokoa ho sebelisa lisebelisoa tse loketseng bakeng sa ho tiisa ho qetela.Sekhahla sa phala kapa sekontiri se feto-fetohang se ka sebelisoa ho tiisa khokahano.Leha ho le joalo, e-ba hlokolosi hore u se ke ua tiea ho feta tekano, kaha ho ka ’na ha senya likhoele kapa ha etsa hore se kentsoeng se petsohe.
Bohlokoa ba ho sebelisa lisebelisoa tse nepahetseng le li-sealant bakeng sa khokahano e sa luleng
Ho sebelisa lisebelisoa tse nepahetseng le li-sealant ho bohlokoa ha ho tluoa mabapi le ho fihlella khokahano e sa luleng ea NPT.Ke ka lebaka lena e leng bohlokoa:
1. Ho thibela ho lutla le ho hloleha
Ka ho sebelisa lisebelisoa tse nepahetseng le li-sealants, u ka fokotsa haholo kotsi ea ho lutla le ho hloleha likhokahanong tsa NPT.The sealant e etsa tiiso e tiileng pakeng tsa likhoele, e thibelang mokelikeli leha e le ofe kapa khase ho tsoa.Ho feta moo, ho sebelisa lisebelisoa tse nepahetseng ho tiisa hore khokahano e tiisitsoe hantle, e fokotsa menyetla ea ho lutla.
2. Ho netefatsa polokeho le botšepehi
Lihokelo tsa NPT tse kentsoeng hantle li bohlokoa bakeng sa polokeho le ts'epahalo ea sistimi ka kakaretso.Ho lutla ha likhokahano ho ka lebisa maemong a kotsi, haholo indastering moo maro kapa likhase tse tsamaisoang li tukang kapa li chefo.Ka ho sebelisa lisebelisoa tse loketseng le li-sealants, u ka netefatsa botšepehi ba khokahanyo, ho khothalletsa polokeho le botšepehi.
3. Ho eketsa nako ea bophelo ba khokahano
Ho sebelisa lisebelisoa tse nepahetseng le li-sealant ha ho thibele ho lutla feela empa hape ho eketsa nako ea bophelo ba khokahano ea NPT.Mekhoa e nepahetseng ea ho kenya le ho lokisa e thusa ho fokotsa ho senyeha ha likhoele, ho fokotsa kotsi ea ho senyeha kapa ho hlōleha ha nako e ntse e ea.Sena se tiisa hore khokahano e lula e bolokehile ebile e sebetsa ka nako e telele.
Mekhoa e metle ea ho boloka le ho hlahloba likhokahano tsa NPT ho netefatsa hore li phela nako e telele
Ho netefatsa bophelo bo bolelele ba likhokahano tsa NPT, ho bohlokoa ho latela mekhoa e metle bakeng sa tlhokomelo le tlhahlobo ea tsona.Mona ke tse ling tsa mekhoa ea bohlokoa eo u ka e nahanang:
Ho hlahloba kamehla
Ho lekola likhokahano tsa NPT khafetsa ho bohlokoa ho bona matšoao a ho khathala, tšenyo kapa ho lutla.Tlhahlobo ea pono e ka u thusa ho lemoha lintho tse kang li-fittings tse hlephileng, ho bola, kapa mapetsong.Ho khothalletsoa ho etsa tlhahlobo nako le nako kapa e le karolo ea kemiso ea tloaelo ea ho lokisa.
Ho hloekisa hantle le ho tlotsa
Ho hloekisa le ho tlotsa likhokahano tsa NPT ho ka thusa ho boloka ts'ebetso ea tsona le ho thibela litaba tse joalo ka ho ts'oara kapa ho lla.Sebelisa lisebelisoa tse nepahetseng tsa ho hloekisa ho tlosa litšila kapa litšila tse tsoang likhoeleng.Kenya setlolo se loketseng ho netefatsa kopano e boreleli le ho qhaqhoa ha likhokahanyo.
Licheke tsa torque
Nako le nako ho lekola torque ea likhokahano tsa NPT ho bohlokoa ho netefatsa hore li tiisitsoe hantle.Ha nako e ntse e ea, ho thothomela kapa ho fetoha ha mocheso ho ka etsa hore likhokahano li theohe.Ka ho etsa licheke tsa torque, u ka tseba lisebelisoa life kapa life tse hlephileng ebe u li tiisa kapele ho thibela ho lutla kapa ho hloleha.
Ho nkela sebaka sa likarolo tse tsofetseng
Haeba likarolo life kapa life tsa khokahano ea NPT, joalo ka phaephe kapa fitting, li bonts'a matšoao a ho senyeha ho hoholo, ho bohlokoa ho li khutlisa hang hang.Ho tsoela pele ho sebelisa lisebelisoa tse tsofetseng ho ka senya botšepehi ba khokahanyo le ho eketsa kotsi ea ho lutla kapa ho hlōleha.
Ho rarolla mathata a likhokahano tsa NPT
Hlalosa mathata a tloaelehileng le liphephetso tse ka hlahang mabapi le likhokahano tsa NPT
Mefuta ea khokahano ea NPT (National Pipe Tapered) e sebelisoa haholo liindastering tse fapaneng bakeng sa ho kopanya liphaephe le lisebelisoa.Le hoja likhokahano tsena li tsebahala ka ho tšepahala le ho tšoarella ha tsona, ho na le litaba tse itseng le mathata a ka hlahang.Taba e le 'ngoe e tloaelehileng ke ho lutla, ho ka hlahang ka lebaka la mabaka a fapaneng a kang ho kenngoa ho sa lokelang, likhoele tse tsofetseng, kapa libaka tse senyehileng tsa tiiso.Bothata bo bong ke ho senya likhoele, tse ka bakoang ke ho tiea ho feta tekano, ho hola kapa ho sebelisa thepa e sa lumellaneng.Ho feta moo, mathata a mang a kang khoele ea khoele, ho se tsamaisane hantle, kapa ho tiisa ho sa lekana a ka ama ts'ebetso ea likhokahano tsa NPT.
Malebela le mekhoa ea ho rarolla mathata a ho sebetsana le ho lutla, tšenyo ea likhoele le mathata a mang
Ho rarolla ho lutla likhokahanong tsa NPT, ho bohlokoa ho qala ka ho tseba mohloli oa ho lutla.Qala ka ho hlahloba ka mahlo ho hokahanngoa ha matšoao leha e le afe a bonahalang a ho lutla.Haeba ho se na mats'oao a bonahalang a teng, o ka sebelisa tharollo ea ho lemoha ho lutla kapa metsi a sesepa ho hlahloba ho lutla ho honyane.Hang ha mohloli o se o tsejoa, o ka nka mehato e nepahetseng joalo ka ho tiisa khokahanyo, ho fetola likhoele tse senyehileng, kapa ho kenya sealant hape.Ho bohlokoa ho etsa bonnete ba hore likhoele li tsamaellana hantle le libaka tse koalang li hloekile ebile ha li na lithōle pele u kopanya hape.
Ha ho tluoa tabeng ea tšenyo ea khoele, thibelo ke ea bohlokoa.Qoba ho tiisa khokahanyo ho feta tekano kaha ho ka lebisa ho deformation kapa ho hlobola khoele.Sebelisa torque wrench ho tiisa khokahanyo ho litlhaloso tse khothaletsoang ke moetsi.Haeba ts'oaetso ea khoele e se e etsahetse, ho ka 'na ha hlokahala hore u sebelise lisebelisoa tsa ho lokisa likhoele kapa ho nkela karolo e senyehileng sebaka.Ho bohlokoa ho sebelisa lisebelisoa tse lumellanang le ho qoba ho kopanya mefuta e fapaneng ea litšepe ho thibela kutu ea galvanic, e ka fokolisang likhoele le ho sekisetsa botšepehi ba khokahano.
Ntle le ho lutla le ho senyeha ha likhoele, mathata a mang joalo ka khoele e kobehang, ho se tsamaisane hantle, kapa ho tiisa ho sa lekaneng le ona a ka ama likhokahano tsa NPT.Thread galling, eo hape e tsejoang e le cold welding, e ka etsahala ha likhoele li tšoara kapa li notlella hammoho nakong ea kopano.Ho thibela sena, sebelisa motsoako oa anti-seize kapa lubricant ho likhoele pele ho kopano.Ho se tsamaisane hantle ho ka rarolloa ka ho etsa bonnete ba hore liphaephe le li-fittings li tsamaisana hantle pele li tiisa khokahanyo.Ho tiisa ho sa lekaneng ho ka rarolloa ka ho sebelisa sealant kapa tepi e loketseng le ho netefatsa hore e sebelisoa ka nepo.
Bohlokoa ba ho batla thuso ea litsebi bakeng sa litaba tse thata
Leha litaba tse ngata tse tloaelehileng ka likhokahano tsa NPT li ka rarolloa ho sebelisoa malebela a ho rarolla mathata a boletsoeng ka holimo, ho bohlokoa ho hlokomela meeli ea tharollo ea DIY.Litaba tse rarahaneng tse kang ho senyeha ho matla ha khoele, ho lutla ho hoholo, kapa litaba tse nang le litsamaiso tse mahlonoko li lokela ho rarolloa ke litsebi tse nang le boiphihlelo ba ho hokahanya liphaephe.Ho batla thuso ea litsebi ho netefatsa hore bothata bo fumanoa ka nepo le ho rarolloa, ho fokotsa kotsi ea tšenyo e eketsehileng kapa likotsi tsa polokeho.Litsebi li ka boela tsa fana ka tataiso mabapi le mekhoa e thibelang ho lokisoa le ho khothaletsa lisebelisoa tse loketseng kapa likarolo bakeng sa likopo tse itseng.
Mehopolo ea Tšireletso ka likhokahano tsa NPT
Likotsi tse ka bang teng tse amanang le likhokahano tsa NPT haeba li sa kengoa kapa li sa hlokomeloe ka nepo
Ha ho tluoa mefuteng ea khokahano ea NPT (National Pipe Tapered), ho bohlokoa ho utloisisa likotsi tse ka hlahang haeba li sa kengoa kapa li sa hlokomeloe ka nepo.E 'ngoe ea mathata a mantlha ke kotsi ea ho lutla.Ka lebaka la moralo o thata oa likhokahano tsa NPT, ho na le monyetla o moholo oa ho lutla ha o bapisoa le mefuta e meng ea likhokahanyo.Sena se ka lebisa mathateng a fapaneng a polokeho, ho kenyelletsa tšilafalo ea tikoloho, tšenyo ea lisebelisoa, esita le kotsi ea motho.
Ho kenya likhokahano tsa NPT ka mokhoa o sa nepahalang ho ka baka tšenyo ea likhoele kapa ho koala ho sa lekana, ho ka lebisang ho lutla.Likhoele tsa likhokahano tsa NPT li kotsing ea ho senyeha haeba matla a feteletseng a sebelisoa nakong ea ho kenya.Ho bohlokoa ho sebelisa lisebelisoa le mekhoa e nepahetseng ho netefatsa ho lekana hantle le ho qoba tšenyo ea likhoele.Ho feta moo, ho sebelisa likhoele tsa likhoele kapa theipi e etselitsoeng likhokahano tsa NPT ka kotloloho ho ka thusa ho thibela ho lutla le ho netefatsa khokahano e sireletsehileng.
Kotsi e 'ngoe e amanang le likhokahano tsa NPT ke monyetla oa ho bola.Haeba liphaephe kapa li-fittings li entsoe ka thepa e sa lumellaneng kapa haeba li pepesehetse lintho tse senyang, li ka lebisa ho senyeha ha khokahanyo ha nako e ntse e ea.Corrosion e fokolisa botšepehi ba khokahano, e etsa hore ho be bonolo ho lutla le ho hloleha.Ho hlahlojoa le ho hlokomeloa khafetsa hoa hlokahala ho fumana matšoao leha e le afe a ho bola le ho nka mehato e nepahetseng ho thibela tšenyo e eketsehileng.
Mehato ea ts'ireletso eo u lokelang ho e latela ha u sebetsa le likhokahano tsa NPT, joalo ka ho sebetsana le lits'ebetso tsa khatello e phahameng le ho sebelisa lisebelisoa tse nepahetseng tsa ts'ireletso.
Ho sebetsa le likhokahano tsa NPT ho kenyelletsa ho sebetsana le litsamaiso tse nang le khatello e phahameng, tse hlokang ho ts'oara ka tieo mehato ea ts'ireletso.Pele ho tsohle, ho bohlokoa ho etsa bonnete ba hore sistimi e tepeletse maikutlo pele o leka ho kenya, ho lokisa kapa ho lokisa.Sena se ka etsoa ka ho koala li-valve tse amehang le ho lokolla khatello leha e le efe e qabeletsoeng.Ho hloleha ho hatelleha ha tsamaiso ho ka fella ka hore ka tšohanyetso ho lokolloe metsi a nang le khatello e matla, e leng ho behang kotsi e khōlō ho polokeho ea basebetsi ba amehang.
Thepa ea ts'ireletso ea motho (PPE) e bapala karolo ea bohlokoa ho netefatsa polokeho ea batho ba sebetsang le likhokahano tsa NPT.Ha o sebetsana le litsamaiso tsa khatello e phahameng, ho bohlokoa ho roala PPE e loketseng, joalo ka likhalase tsa tšireletso, liatlana le liaparo tse sireletsang.Ligalase tsa tšireletso li sireletsa mahlo hore li se ke tsa lutla kapa li fafatsa, ha liatlana li fana ka tšireletso khahlanong le mathōko a nchocho kapa lintho tse senyang.Liaparo tse itshireletsang, joalo ka likoahelo kapa liaprone, li ka sireletsa 'mele hore o se ke oa phatloha kapa o tšoloha.
Ntle le PPE, ho bohlokoa ho latela mekhoa e nepahetseng ea ho sebetsa ha o sebetsa le likhokahano tsa NPT.Sena se kenyelletsa ho sebelisa lisebelisoa tse nepahetseng bakeng sa mosebetsi le ho sebelisa torque e lekaneng nakong ea ho kenya.Ho tiisa ho feta tekano ho ka senya likhoele, ha ho tiea ka tlase ho ka baka ho lutla.Ho bohlokoa ho beha tekano e nepahetseng ho netefatsa khokahano e sireletsehileng le e sa luleng.
Tlhahlobo le tlhokomelo ea khafetsa li bohlokoa ho tseba likotsi life kapa life tse ka bang teng tsa polokeho tse amanang le likhokahano tsa NPT.Sena se kenyeletsa ho hlahloba matšoao a ho lutla, ho bola, kapa ho senyeha ha likhoele.Mathata leha e le afe a lokela ho rarolloa hang-hang ho thibela ho senyeha ho eketsehileng le ho netefatsa polokeho e tsoelang pele le botšepehi ba tsamaiso.
Qetello
Qetellong, likhokahano tsa NPT li sebelisoa haholo liindastering le lits'ebetsong tse fapaneng bakeng sa manonyeletso a tsona a sireletsehileng le a sa lutleng.Ba fana ka melemo e kang ho lumellana le lisebelisoa tse fapaneng tsa liphaephe, ho hanyetsa khatello e phahameng le maemo a mocheso, le ho boloka litšenyehelo.Ho kenya le ho hlokomela hantle ho bohlokoa bakeng sa ho fumana likhokahano tse tšepahalang, 'me malebela a ho rarolla mathata a ka thusa ho rarolla mathata a tloaelehileng.Ho utloisisa lintlha tsa polokeho tse amanang le likhokahano tsa NPT ho bohlokoa hape ho netefatsa ts'ebetso e bolokehileng ea litsamaiso.
Lipotso Tse Botsoang Hangata
P: Phapano ke efe lipakeng tsa likhokahano tsa NPT le NPTF?
A: Likhokahano tsa NPT (National Pipe Thread) le NPTF (National Pipe Thread Fuel) ke likhoele tsa liphaephe tse tapered.Phapang e kholo ke hore NPTF e na le bophara bo boholo ba khoele ea khoele le bophara bo bonyenyane ba khoele ha bo bapisoa le NPT.Phapang ena e lumella likhokahano tsa NPTF ho theha tiiso e tiileng, e etsang hore e tšoanelehe haholoanyane lits'ebetsong tse hlokang khokahano e sa luleng.
P: Na likhokahano tsa NPT li ka sebelisoa bakeng sa lisebelisoa tsa khase le tsa metsi?
A: E, likhokahano tsa NPT li ka sebelisoa bakeng sa lisebelisoa tsa khase le tsa metsi.Leha ho le joalo, ke habohlokoa ho nahana ka litlhoko tse khethehileng tsa kopo le ho netefatsa hore lisebelisoa tse khethiloeng le li-sealants li lumellana le mokelikeli o reretsoeng kapa khase.
P: Na likhokahano tsa NPT li tsamaisana le liphaephe tsa polasetiki?
A: Lihokelo tsa NPT hangata li lumellana le liphaephe tsa polasetiki.Leha ho le joalo, ho bohlokoa ho nahana ka mofuta o ikhethileng oa polasetiki e sebelisoang le ho netefatsa hore khokahano e khethiloeng ea NPT e lumellana le thepa eo.Li-plastiki tse ling li ka 'na tsa hloka li-adapter kapa lisebelisoa tse khethehileng ho netefatsa hore ho na le khokahanyo e nepahetseng le e sireletsehileng.
