Ukuhlobisa FitTings Fittings: I-NPSM, NPTF, NPT, kanye ne-BSTT kuchaziwe

Ngabe ukhathazwa ngokungaqondi i-NPSM, NPTF, NPT, kanye nemicu ye-BSTP? Le ndatshana izokuqondisa ngokuqonda okuningiliziwe kwalezi zintambo, futhi ikufundise ukuthi ungazifaka kanjani ngokucatshangelwa okubalulekile.

Ukuhlaziywa okuningiliziwe kwezinhlobo zentambo

I-NPT (National Pipe Taper) imicu

Izincazelo, izici, kanye nezisekelo zokwakha

I-NPT imele ipayipi likazwelonke i-Taped . Uhlobo lwentambo ye-tapered  esetshenziselwa ukujoyina amapayipi nokufakelwa. Nakhu okudingeka ukwazi:

Imicu ye - tapered : I-NPT TECTS THREAS ngenani le-1/16 intshi ngesentimitha ngalinye, okusho ukuthi bathola incane ngasekupheleni.

: Amazinga wentambo alandela i -ANSI / ASME B1.20.1  Okujwayelekile.

Intambo yentambo : imicu ine -angle engu-60 ° Flank.

l Ukusebenza Kabika : Bakha uphawu lwemishini  ngokuphazanyiswa okulinganiselwe  phakathi zentambo  nezimpande kwezici .

Izicelo ezinhlelweni zamapayipi kanye nokusetshenziswa komkhakha

Imicu ye-NPT yiyo yonke indawo ezinhlelweni zokucindezela . Zisetshenziselwa ukuqinisekisa uphawu olungenamahhala  olungenayo:

l Ukudluliswa kwe-Fluid kanye negesi : Amapayipi aphethe amanzi, uwoyela, noma igesi.

Izinhlelo zokulinganisa ingcindezi : Izinsizakusebenza ezilinganisa ukucindezela.

Izimboni ezisebenzisa imicu ye-NPT zifaka:

l ekhiqiza

l Izithuthi

l aerospace

Amathiphu wokufaka, imikhuba emihle kakhulu, nokusetshenziswa okuvamile

Lapho ufaka imicu ye-NPT, landela lezi zindlela ezinhle kakhulu:

1. Sebenzisa itheyiphu ye-PTFE : i-Wrap Ptfe tepe  (teflon) ezungeze intambo yowesilisa ukuze ithuthukise uphawu.

2. Musa ukuqinisa ngokweqile : ukuqina ngokweqile kungadala ukugada , lapho imicu ilimele khona.

3. Bheka Ukuvuza : NJALO HLOLA ISIVIVINYO SOKUXHUMANISA.

Ukusetshenziswa okujwayelekile kufaka phakathi:

l Ukuxhuma Amapayipi : Njengasemapalini asekhaya lakho.

l Ukufakelwa : Njenge-elbows noma ama-Tees asiza ukuguqula ukuqondiswa kokugeleza.

Izinzuzo, ukulinganiselwa, kanye nokwehluka okuvela ku-NPTF

Izinzuzo:

l Ukuxhumana okuvuzayo : zenzelwe ukudala uphawu oluqinile.

Kwamukelwa kabanzi : I-NPT iyindinganiso ezimbonini eziningi.

Ukulinganiselwa:

l Ingozi yokuqina ngokweqile : Kungenzeka ukulimaza imicu.

Ngingadinga i-sealant : ngesinye isikhathi, kudingeka i-sealant eyengeziwe ukuze kuqinisekiswe uphawu olungenamuva.

Umehluko ovela ku-NPTF:

l NPTF , noma kazwelonke amapayipi wepayipi , eyaziwa nangokuthi i-Drseal American National Standard Thread Thread , yenzelwe ukuhlinzeka ngophawu olunzima ngaphandle kwesidingo se-sealant eyengeziwe.

Imicu ye-NPTF  inedizayini ehlukile evumela ukuxhumana okwenziwayo  ngaphandle kokusetshenziswa kwetheyiphu ye-PTFE  noma ezinye ama-sealants, ngokungafani nemicu evame ukudinga.

Khumbula, i-NPT imayelana nokwenza uxhumano lwentambo yepayipi ye-tapered paper  ethembekile futhi esetshenziswe kabanzi. Noma ngabe usebenza emotweni noma ukulungisa ukuvuza ekhaya, ukwazi nge-NPT Threads kukusiza ukuba uxhumane kangcono.

 

I-NPTF (National Pipe Taper Fuel)

Sibutsetelo amazinga wentambo ye-NPTF

Imicu ye-NPTF, eyaziwa nangokuthi i-Drseal American National Standard Thread Thread , landela amazinga we-ANSI B1.20.3  . Lezi zintambo zifana ne-NPT kodwa zenzelwe i-seal engcono. Imicu ye-NPTF ine- angle engu-60 ° Flank  bese udala uphawu lwemishini  ngokusebenzisa ukungenelela okulinganayo  phakathi kwama-crests nezimpande. Lokhu kusho ukuthi imicu ecindezela ndawonye ukwakha uphawu oluqinile ngaphandle kokudinga ama-sealants angeziwe.

Umehluko phakathi kwe-NPT ne-NPTF

Ngenkathi imicu ye-NPT kanye ne-NPTF ibukeka ifana, imiklamo yabo ihlukile . Imicu ye-NPT yenzelwe ngaphansi kwe-Asi / ASME B1.20.1 , futhi bangadinga itheyiphu ye-PTFE  noma ezinye izimbangi ukuqinisekisa ukuxhumana okuvuzayo . Ngakolunye uhlangothi, imicu ye-NPTF, kulandela i-ANSI B1.20.3 , yenziwa ku-Mesh ilokhile futhi yakha uphawu ngaphandle kwezinto ezengeziwe. Bakufeza lokhu ngedizayini evumela wentambo  nezimpande amakhilogremu  ukuze anciphise ndawonye, ​​adale uphawu olungenamahhala.

Izicelo ngophethiloli kanye negesi, zifinyelela izimpawu zamahhala ezivuzayo

Emhlabeni kaphethiloli kanye negesi , imicu ye-NPTF iyindlela yokuzikhethela. Zenzelwe ukwakha uphawu oluvuzayo  olubucayi olubalulekile ezinhlelweni zokucindezela . Lezi zinhlelo azikwazi ukukhokhela ukuvuza, njengoba noma omncane angaba yingozi. Imicu ye-NPTF isetshenziswa ezinhlelweni zokulinganisa ingcindezi  nezingxenye lapho kugcinwa khona ubumsulwa nobuqotho boketshezi noma igesi kubalulekile.

Izimo zokusetshenziswa, ukuhambisana kanye nokushintshana nge-NPT

Imicu ye-NPTF imvamisa itholakala kuzinhlelo zokusebenza lapho uphawu olungenakuvuza  lubalulekile, futhi akukho sealant ofunwa. Kodwa-ke, ngenkathi imicu ye-NPTF ne-NPT ngezinye izikhathi ingaxutshwa, lokhu akuphephile njalo noma kusebenza ngempumelelo. Imicu ye-NPTF ingahle ifakwe ku-phrings ibe yi-NPT Kubalulekile ukubheka ukuhambisana ngaphambi kokuzixuba ukugwema izingqinamba ezinjengokuvalwa kokukhanya  okungafanele.

I-NPSM (ipayipi likazwelonke eliqondile imishini)

Izici, izici, nezisekelo ze-NPSM Threads

Imicu ye-NPSM uhlobo lwentambo yepayipi eliqondile . Balandela ama-Asi / ASME B1.20.1  amazinga. Lezi zintambo zenzelwe ukuxhumeka kwemishini  kunokuba kwenze uphawu. Banama -angle angama-60 ° Flank  futhi ahloselwe ukuthi asetshenziswe nge- gasket  noma i-O-ring  ukudala ukuxhumana okuvuzayo.

Amaphoyinti asemqoka  ngentambo ye-NPSM: - Bafana , okusho ukuthi ububanzi bungaguquguquki. - Imicu ye-NPSM ayihambi njenge -NPT  (National Pipe Taped). - Zisetshenziselwa ukwenza ukuxhumana kwemishini . - Ukusebenza kahle kokubekwa uphawu  kuvela kuma-gaskets, hhayi imicu uqobo.

Izicelo ku-Hydraulic Systems kanye namacala afanelekile wokusebenzisa

Imicu ye-NPSM ivame ukutholakala ezinhlelweni ze-hydraulic  lapho uphawu olungenakuvuza  lubalulekile. Basebenza kahle ezinhlelweni zokucindezela  ezifana nezinhlelo zokulinganisa ingcindezi . Ukufakwa kwamapayipi wesifazane wepayipi  kuvamile ngemicu ye-NPSM, okuvumela ukufakwa okulula ezikhaleni eziqinile.

Amacala okusetshenziswa okuhle  afaka: - Lapho uphawu lwemishini  lubaluleke kakhulu kunophawu lwentambo. - Amasistimu adinga ukungaboni ngasotri njalo futhi ngokuhambisana. - Uma usebenzisa i -gasket  noma i-O-ring  kukhethwa ngaphezulu kwentambo.

Qhathanisa nezinye izinhlobo zentambo, ukushintshana nge-NPTF

I-NPSM kwesinye isikhathi ingadideka nge -NPTF  (Kazwelonke I-Taper Taper Fuel), eyaziwa nangokuthi i-Drseal American National Standard Thread Thread . Nakhu ukuthi baqhathanisa kanjani:

Imicu ye- NPTF  yenzelwe ukuhlinzeka nge- seal-free kangaka  ngaphandle kwesidingo sama-sealants angeziwe. Bakha amandla angenayo  phakathi kwamakhilogremu wentambo  nezimpande zentambo.

Imicu ye -LPSM  idinga i -gasket  noma i-O-ring  ukuqinisekisa ukuxhumana okuvuzayo.

I -LPSM ayiguquki nge -NPTF  noma i-NPT  ngenxa yamazinga wentambo ahlukile.

Ukusebenza Kalusi KweBeaning kanye Nezicelo Zezimboni

Imicu ye-NPSM iyaziswa ukusebenza kwayo kokubopha  lapho isetshenziswa ngophawu olufanele lwemishini . Zisetshenziswa kabanzi ku: - Izicelo zokudlulisa uketshezi kanye negesi  . - Izimboni ezidinga ukuxhumana okuthembekile kwemishini.

Izicelo zezimboni  zifaka phakathi: - Ukwelashwa kwamanzi kanye nowamanzi. - Izinhlelo ze-Pneumatic. - Izinhlelo ezifuywayo.

I-BSPT (BRITISH STATEP PIPAT TAPR) Imicu

Isingeniso kumazinga wentambo ye-BSTPT

Lapho sikhuluma ngemicu ye-BSTP , singena ezweni lamapayipi nokuxhumeka okubalulekile ekudluliseleni uketshezi nokudluliswa kwegesi . I-BSPT imele i- British Standard Pipe TAP . Uhlobo lwentambo ye-tapered  esetshenziselwa ukwenza uphawu olungenamahhala . Leli Zinga lichazwe kumadokhumenti afana ne -BS 21  ne -ISO 7.

Izici ezihlukile nokuqhathanisa ne-NPT ne-NPTF

Imicu ye-BSTP ihlukile. Bane -angle engu-60 ° Flank  futhi baphapheme, okusho ukuthi banciphile njengoba bejule ngokujulile. Lokhu kwehlukile kwimicu ye-NPT , ephinde futhi i-tapered kepha ine-angle engu-60 ° esetshenziswe eMelika, njengoba kuchazwe yi -ANSI / ASME B1.20.1.

Manje, ake siqhathanise i-BSPT ne- NPTF . I-NPTF, noma i-National Pipe taper kaphethiloli , evame ukubizwa ngokuthi yi -Drseal American National Card Thread Thread , njengo- Ansi B1.20.3 , yenzelwe i-tighter seal kune-NPT. Ifinyelela lokhu ngokwakha ukuphazamiseka okulingana  phakathi kwamakhilogremu wentambo  nezimpande zentambo . I-BSTT ayithembeli kulokhu kufanelekile ukubekwa uphawu. Esikhundleni salokho, kungadinga i -templelant yentambo  efana ne -PTFE tape (teflon)  noma i- gasket  ukuvikela ukuvuza.

I-BSPT ezinqizeni zamazwe omhlaba nezomhlaba jikelele

Imicu ye-BSTP isetshenziswa kabanzi ngaphandle kwase-United States, ikakhulukazi emazweni alandela amazinga wobunjiniyela baseBrithani. Zivame ukubonwa ezinhlelweni zokucindezela  nezinhlelo zokulinganisa ingcindezi . Amandla abo okwakha i -Mechanical Seal  abenze balungele izinhlelo eziningi zamazwe omhlaba.

Ukuqhathanisa Ukuhlaziya nezinye izinhlobo zentambo

Lapho sibheka i-BSTPT eceleni kwezinye izinhlobo zentambo ezifana ne -NPSM (ipayipi likazwelonke eliqonde noma  i -BSPP (iBritish Standard Parallel Pipe) , sibona ukuthi i-BSPT ingeyokudala imicu ye-  tapered, kanti i-NPSM ne-BSPP inentambo yamapayipi aqondile . Imicu ye-BSTP yenza ukuxhumana okwenziwe ngomshini  ngaphandle kokudinga uphawu lwendandatho oluhlanganisiwe  noma i-O-ring , ngokungafani ne-BSPP okungadinga lokhu ngokubopha uphawu.

 

Imicu ye-BSTP ilungele izimo lapho udinga i -seal eqinile, engenamuva  ngaphandle kobunzima bezinye izindlela zokubopha. Balula ukusebenzisa imicu ye-NPTF , edinga ukuguqulwa kwengcindezi eqondile  ukugwema izingqinamba ezinjengokugoba noma  ukulimala kusuka ekuqiniseni ngokweqile.

Ukucaciswa kobuchwepheshe namazinga

Izilinganiso ezijwayelekile, ukubalwa kwentambo, namazinga we-ANSI

Lapho sikhuluma ngokufakwa kwentambo  njenge-NPSM, NPTF, NPT, ne-BSTT, konke mayelana nokuthi baxhuma kanjani amapayipi. Lezi zindinganiso zentambo  zisisiza ukuthi siqiniseke ukuthi izinto zilingana kahle. Cabanga ngakho njenge-LEGO BLOCKS - kudingeka afane ngokuphelele ukunamathela ndawonye.

l I-NPSM  ne -NPS  banemicu eqondile, okusho ukuthi abanakubanjiswa njengoba bengena.

l NPT , NPTF , futhi i-BSTPT  i-tapered. Lokhu kusho ukuthi bahlukumeza, uhlobo lwe-funnel, esiza ukuyeka ukuvuza.

I- American National Standards Institute (ANSI)  isetha imithetho yalezi zintambo e-US ngokwesibonelo, i-ANSI / ASME B1.20.1  yenzelwe imicu ye-NPT. Basitshela ukuthi zikhulu kangakanani imicu, zingaki lapho ku-intshi (lokho ukubalwa kwentambo), kanye nesimo okudingeka babe nalo.

Izinto ezibonakalayo, izindinganiso zokukhiqiza, kanye nokuhambisana

Izinto zokwakha zibalulekile kakhulu. Ukufakelwa okuningi kuyinsimbi, njengensimbi noma yethusi, ngoba banamandla. Ukwenza kwalezi zingxenye kulandela imithetho eqinile ukuqinisekisa ukuthi baphephile futhi bazohlala isikhathi eside. Lokhu kumayelana nokuhambisana  - njengokulandela iresiphi ukubhaka ikhekhe eliphelele ngaso sonke isikhathi.

l ansi b1.20.3  Futhi njengoba kungu-1722.1  kungenye yezindinganiso eziqondisa ukuthi zenze imicu yezinhlelo zokucindezela.

L E-UK, basebenzisa ama-BS 21  ne -ISO 7  ngemicu ye-BSPT  kanye ne -BSPP  .

Abakhiqizi futhi kufanele baqinisekise ukuthi imicu yabo ingaphatha ingcindezi abafanele ngaphandle kokuvuza noma ukwephula. Yilapho ukuqinisekiswa kwekhwalithi  kungena khona.

Ukuqonda imigqa, ukubekezelelana kanye nokuqinisekiswa kwekhwalithi

Ubukhulu bemicu buhlanganisa i -pitch  (ukude kangakanani nemicu) ne- angle  yentambo. Isibonelo, imicu ye-BSTP ine- angle engu-60 ° Flank , okuyingxenye yalokho okubenza bahluke.

l Ukubekezelelana  kungukuhluka okuncane okuvunyelwe ngosayizi nokwakheka kwemicu. Bafana negumbi lokuwina labaculi abafanele.

l Ukuqinisekiswa kwekhwalithi  kusho ukubheka yonke ingxenye ukuze uqiniseke ukuthi ihlangabezana namazinga. Kufana nothisha ohlela umsebenzi wakho wesikole ukuze uqiniseke ukuthi uthole izimpendulo zilungile.

Ngokwendawo okuvuza kalula , izingxenye ezinjenge- punse we-PTFE (teflon) , ama-gaskets , noma ama-o-amasongo  angahle asetshenziswe ngale micu. Imicu ye-tapered  efana ne -NPT  ne -BSTPT  ingabopha ngokuvamile ngokwayo ngenxa yokwakheka kwayo - baphenduka balimele futhi bakhanyisiwe njengoba benziwe.

Amaqiniso asheshayo:

I-L NPT  Threads yenzelwe ukuba yinto yokuphazamiseka , okusho ukuthi bakha uphawu lwemishini  ngokuncipha ndawonye.

Intambo ye-LPSM  isebenza nge -Swivel yepayipi yabesifazane  - uhlobo lwe-nati olukuvumela ukuthi ulukhiphe ngaphandle kokusonteka kuwo wonke amapayipi.

Imicu ye-NPTF  kwesinye isikhathi ibizwa nge -Drseal American National National Thread Thread  ngoba yenzelwe ukusayina ngaphandle kokudinga izinto ezingeziwe njengetheyipu noma unamathisele.

Izicelo ezisebenzayo nokuhlaziywa kokuqhathanisa

Izicelo zangempela zomhlaba kanye nezifundo zamacala ezinhlobo ezahlukahlukene zentambo

Uma kukhulunywa ngemicu yokufakelwa  okusetshenziswa ezinhlelweni zokucindezela , imininingwane imininingwane. Ake sibheke ukuthi le micu yasetshenziswa kanjani emhlabeni wangempela.

Imicu ye-NPT  imvamisa itholakala kwizicelo ezijwayelekile zezimboni. Isibonelo, umenzi wengcindezi yokulinganisa amasistimu  angasebenzisa ukufakwa kwe-NPT ngenxa yokuhambisana kwawo ngezinhlobonhlobo zemishini.

Imicu ye-NPTF , eyaziwa nangokuthi i-Drseal American National Standard Thread Thread , zenzelwe i-seal ephephe ngokwengeziwe, evulekile ngaphandle kwesidingo se-Well Thrent Selant . Zisetshenziswa kuzinhlelo zokusebenza lapho uphawu lwemishini  lubaluleke kakhulu, lufana nemishini yokuhambisa amafutha.

Imicu ye-NPSM , noma ipayipi likazwelonke iqonde ngomshini , ngokuvamile isetshenziswa nge- swivel yepayipi yabesifazane . Isifundo secala singafaka uhlelo lwe-hydraulic lapho ukufakwa kwe-NPSM kuvumela umhlangano kanye nokunakekelwa okulula.

Imicu ye-BSTT , nge -angle yazo engama-60 ° Flank , ijwayelekile kwizicelo zamazwe omhlaba. Imvamisa bakhethelwa ukusebenza kwabo kokubopha  kwezinhlelo ezinhlelweni ze-fluid negesi.

Ukuhlaziywa kokuqhathanisa: I-NPT VS. NPTF, NPSM vs. NPT, Isikhundla esihlukile se-BSPT

Masihlukanise umehluko:

l NPT VS. NPTF : Bobabili banentambo yepayipi ye-tapered , kepha i-NPTF ihlinzeka ngokuphazanyiswa okulingana  phakathi kwezimpande zentambo  nezimpande zemicu , kuqeda isidingo se-sealant.

l i-vps vs vs vs vs : NPSM inentambo yepayipi eliqondile  futhi idinga i-gasket noma i-O-ring ukudala ukuxhumana okulula . Imicu ye-tapered ka-NPT yakha uphawu ngezintambo ngokwazo.

I- LSPT's Unique Standap : Imicu ye-BSTP iyefana ne-NPT kodwa ibe ne- angle ehlukile ye-angle  kanye ne -pitch , ubenza bangaguquki ngokufakwa kwe-NPT.

I-Expert Insighting kanye nezeluleko ezingochwepheshe bezimboni ezifundwayo zentambo

Ochwepheshe bezimboni baphakamisa ukuthi basebenzise itheyiphu ye-PTFE (teflon)  noma uphawu lwendandatho oluhlanganisiwe  olunama-npt fittings ukuqinisekisa uphawu olungenamuva . Kwi-NPTF, kubalulekile ukuqinisekisa ukubandakanyeka okufanele ukusizakala ngomsebenzi wayo we-Drseal  .

Lapho usebenza ngokuxhunyaniswa kwe-BST , khumbula ukuthi azihambelani ne-NPT noma i-NPTF ngaphandle kwama-adaptha. Ochwepheshe beluleka ukubheka amazinga entambo  afana ne -ANSI / ASME B1.20.1  nge-NPT, ANSI B1.20.3  nge-NPTF, noma i-ISO 7  ne -BS 21  ye-BSTT ukuqinisekisa okufanelekile.

Imine , noma ukulimala kwentambo, kuyingozi yalokhu kufakwa. Ukukuvimbela, ungazenzisa ngokweqile futhi ngaso sonke isikhathi ulandele ukucaciswa kwezinhlelo zengcindezi .

Ukufaka, ukugcinwa, kanye nemikhuba emihle kakhulu

Imikhuba emihle yokufaka izinhlobo ezahlukene zentambo

Lapho ufaka i-NPSM , NPTF , NPT , noma ukufakwa kwe -BST  , kubalulekile ukulandela imihlahlandlela ethile ukuze uqinisekise ukuxhumana okuvuvukala . Nasi umhlahlandlela osheshayo:

l npt ne  - NPTF :

l Faka i -PTFE tape  noma i- sealant efanelekile yentambo  ye-MADE.

l qinisa amandla afanele ngesandla, bese usebenzisa i-wrench izinguquko zokugcina.

L qaphela ukuthi ungaqiniseki ngokweqile, ngoba lokhu kungalimaza imicu.

l bsspt :

l Ifana ne-NPT, sebenzisa itheyiphu ye-PTFE  noma i-Well Sealant.

l qinisa ngokucophelela ukufeza uphawu lwemishini.

l i -NPSM :

l Le micu yenzelwe ukushada nge -swivel yepayipi yabesifazane.

l Sebenzisa i-gasket  noma i-o-ring  yokubopha uphawu.

L musa ukuqeda, ngoba kungadala ukulimala kwe -gasket.

Izinselelo ezijwayelekile ekufakweni nokuthi ungazinqoba kanjani

I-L crow-Threating : Kwenzeka lapho imicu ingaqondani. Njalo qala ngesandla ukuze uvikele.

l Intambo : Ukuxhumana ngensimbi-to-metal kungadala lokhu. Sebenzisa ukuthambisa ukugwema.

l ngokweqile : kungaholela ekulimaleni kwentambo. Landela imihlahlandlela yokulinganisa yengcindezelo  ye-torque efanele.

l Ukuvuza : Uma kwenzeka ukuvuza, hlola ngaphandle kokuzungeza futhi uqinisekise  efanele ukubandakanyeka kwentambo .

Ukulungiswa, ukuxazulula inkinga, kanye nokuqinisekisa ukuthi isikhathi eside sentanta

l Ukuhlolwa njalo : Bheka izimpawu zokugqoka, ukugqwala, noma ukulimala.

l Ukuhlanza : Gcina imicu ihlanzekile. Ukungcola kungadala ukuvuza.

l Ukuvunyelwa kwe-sealant : Ngokuhamba kwesikhathi, ama-sealants angadangala. Phinda usebenzise kabusha njengoba kudingeka.

L Isitoreji esifanele : Gcina ukufakwa okusele endaweni eyomile, ehlanzekile.

Khumbula :

I-L  vpt  kanye ne NPTF  Threads yakha uphawu lokuphazanyiswa  phakathi kwezinyawo zentambo  nezimpande - .

l  BSPT  Threads uphawu imicu kuphela, nge- 60 ° flank angle  isiza ekusebenzeni kahle kokubekwa uphawu.

Intambo ye -  LPSM  ethembele ekuxhumaneni kwemishini , evame ukuthuthukiswa nge- gasket  noma i-O-ring.

Ama-FAQs kuma-Fitch Fittings

Umehluko Osemqoka phakathi kwe-NPSM, NPTF, NPT, kanye nemicu ye-BSTP

Uma kukhulunywa ngemicu yokufakelwa , kufana nephazili. Ingxenye ngayinye ifanelana ngendlela ethile. I-NPSM  (ipayipi likazwelonke i-Mechanical Mechanical) iqonde futhi yenzelwe amalunga amalunga amahhala. I NPT  (I-National Pipe Taped) imicu ye-tapered futhi yenze uphawu oluqinile ngokujulile njengoba i-screw in -  thread ntambo yepayipi , ifana ne-NPTY kodwa yaklanywa ngophawu olungcono ngaphandle kokudinga i-sealant engcono. I-BSPT  (iBritish Standard Pipper Taper) imicu, ngakolunye uhlangothi, isetshenziselwa ukwenza izimpawu eziqinile ezinhlelweni zokucindezela futhi ine-angle engu-55 ° Flank, ehlukile kusuka ku-60 ° ANLE esetshenziswe kwimicu ye-NPT.

Ukuxhumana, ukuxhumana okuvuzayo, namaphutha ajwayelekile

Manje, ungazihlanganisa? Akunjalo Empeleni. Ukushintshana  akuyona umdlalo ofuna ukuwudlala ngokufakwa kwentambo. Usebenzisa i-NPT  nge -NPTF  kwesinye isikhathi kungasebenza, kepha akuqinisekisiwe ukuthi kungukuxhumana okuvuzayo . Futhi BSPT ? Kuyindaba ehlukile yonke ngenxa ye-angle yayo eyingqayizivele eyingqayizivele ne-pitch. Iphutha elivame kakhulu? Kucatshangelwa ukuthi bonke bahambisana ndawonye. Hlala uhlola amazinga, njenge -ANSI / ASME B1.20.1  ye-NPT, ukugwema ukuvuza noma ukulimala.

Ukunquma uhlobo lwentambo efanelekile ngezinhlelo ezithile

Ngakho-ke, ukhetha kanjani okulungile? Cabanga ngomsebenzi. Ngokudluliswa kwe-fluid kanye negesi , uphawu olungenamahhala olushibhile  lubalulekile. Uma usebenza nezinhlelo zokucindezela , BSTP  kungenzeka kube yindlela okufanele uhambe ngayo. Ngezicelo ezidinga uphawu lomakheshini  ngaphandle kwe-sealant, i-NPTF  ngumngane wakho. Kanye nokuxhumeka kwemishini  okungathathwa kalula, i-NPSM  ingaba yisinqumo esihle kakhulu.

Ama-FAQ angeziwe abhekana nezinkinga ezisebenzayo

l Yini enhle ye-sealant enhle? 

I-PTFE tepi  (teflon) ivame ukusetshenziswa ngentambo ye-NPT ukusiza uphawu.

l Kufanele ngiqinise kangakanani? 

Iya kokuphazanyiswa okulungele -Tight ngokwanele ngakho-ke ama crests wentambo  nezimpande -  zicindezela ndawonye, ​​kepha hhayi ngokuqinile kangangokuba ujikijele imicu.

l Kuthiwani ngama-engeli? 

Khumbula, i-NPT  ne -NPTF  ine -angle engu-60 ° Flank , futhi i-BSTP  ine- angle engu-55 °.

l Ngingakwazi ukusebenzisa lokhu kufakwa?

 Kwesinye isikhathi, kepha qaphela ukugadla - lapho imicu eguga futhi inamathela ndawonye.

l Kuthiwani uma ivuza?

 Bheka ukulimala noma zama uphawu lwendandatho oluhlanganisiwe  noma i -O-ring  yesendlalelo esengeziwe sokuvikelwa.

Khumbula, ukuthola kufanelekile okulungile kufana nokukhetha ithuluzi elilungile lomsebenzi. Imayelana nemininingwane. Gcina lezi zeluleko engqondweni, futhi uzoba sendleleni eya ukugcwala imicu  yokuxhuma kalula.

Ukugcina

Lapho sikhuluma ngokufakwa kwentambo  njenge -NPSM , NPTF , NPT , kanye ne -BSPT , sikhuluma ngezingxenye ezisisiza ukujoyina amapayipi nama-hoses ndawonye. Lokhu kufakwa kuqinisekisa ukuthi amanzi ethu, igesi, nezinye izinto zihamba ngamapayipi ngaphandle kokuvuza. Nakhu esikufundile:

I-L NPT  uhlobo lwentambo ye-tapered  esetshenziswe kakhulu e-USA. Kwenza i-tight fit ngoba imicu iba incane ngasikhathi sinye, uhlobo olufana nesigaxa.

l NPTF , eyaziwa nangokuthi i-Drseal American National Standard Thread Thread , ifana ne-NPT kodwa yenzelwe ukwenza uphawu olungenamahhala olungenalutho  ngaphandle kokudinga izinto ezingeziwe njengetheyiphu ye-PTFE.

l i -NPSM , noma ipayipi likazwelonke iqonde ngomshini , inemicu yepayipi eqondile . Kuhle ngokwenza ukuxhumana kwemishini  okungahlukaniswa futhi kubuyiswe kalula.

l Bsspt , imfushane ngeBritish Standard Pipe TAPER , iyefana ne-NPT kodwa ine-angle ehlukile yomucu  kanye ne-pitch . Kujwayelekile ezindaweni ezisebenzisa amazinga aseBrithani.

Khumbula, ukuthola okulungile okulungile kusho ukwazi amazinga akho entambo  nokukhetha uhlobo olufanele ngezinhlelo zakho zokucindezela.

Izitayela zesikhathi esizayo ku-Thind Thread Technology kanye nezincomo zezimboni

Umhlaba wokufakelwa kwentambo  uqhubeka eshintsha. Nakhu okusemthonjeni:

l Ukusebenza uphawu uphawu  kungcono. Sithola izindlela zokwenza ukuxhumana okuqinile ngokuqinile ngaphandle kokudinga ama-gaskets angeziwe  noma ama-o-rings.

l Izinto zokwakha  ziyathuthuka, futhi. Lokhu kusho ukuthi ukufakwa kungasingatha ingcindezi eyengeziwe futhi kuhlale isikhathi eside.

Abachwepheshe be -L baphakamisa ukuthi kulandela njalo izincomo zezimboni , njengokusebenzisa i-ANSI / ASME B1.20.1  nge-NPT noma i-ISO 7  ye-BSTPT, ukwenza isiqiniseko sokuthi konke kufanelana kahle.