Ukukhetha uhlobo olungalunganga lwentambo kwii-fittings zakho ze-PVC kukhokelela ekuvuzeni okungathandekiyo. Oku kuvuza kubangela umonakalo wamanzi, ukulibaziseka kweprojekthi, kwaye kukunyanzela ukuba uphinde wenze umsebenzi, nto leyo ebiza ixesha nemali.

I-NPT kunye ne-BSPT zimigangatho emibini eyahlukeneyo engahambelaniyo. I-NPT ngumgangatho waseMelika one-engile yomsonto engama-60°. I-BSPT ngumgangatho waseBritane one-engile yomsonto engama-55°. Kufuneka udibanise uhlobo lomsonto nombhobho wakho.

Le yingongoma endihlala ndiyixoxa neqabane lam uBudi eIndonesia. Kurhwebo lwehlabathi, iinkcukacha ezincinci ezifanaimigangatho yemisontoingenza umahluko omkhulu. Imarike yaseMzantsi-mpuma Asia ngamanye amaxesha isebenzisa umgangatho we-ANSI waseMelika, oquka i-NPT, ingakumbi kwiiprojekthi ezithile. Nangona kunjalo, iindawo ezininzi zikhethaI-BSPTUkuqonda umahluko obalulekileyo phakathi kwezi zimbini linyathelo lokuqala loku-odola iindawo ezifanelekileyo nokuqinisekisa ukuba abathengi bakho banokwakha iinkqubo eziqinileyo nezingenamanzi. Makhe sijonge ukuba yintoni ebenza bahluke.

Yintoni umahluko wokwenyani phakathi kwe-BSPT kunye ne-NPT threads?

Imisonto ekwizihlanganisi ezimbini ifana kakhulu. Ukwenza impazamo ngokucinga ukuba iyafana kunokukrazula imisonto kwaye konakalise isihlanganisi, kunyanzeleke ukuba kutshintshwe.

Umahluko ophambili yi-engile yentambo kunye ne-pitch. Imisonto ye-NPT ine-engile ye-60-degree, ngelixa imisonto ye-BSPT ine-engile ye-55-degree. Lo mahluko mncinci ubathintela ekubeni benze uphawu olufanelekileyo nolukhuselekileyo kunye.

Xa uqala ukubona, usenokungawuboni umahluko. Kodwa ubunjineli obungasemva kwazo buhluke ngokupheleleyo. Kuxhomekeke kwiingongoma ezimbini eziphambili: imilo yemisonto nganye kunye nendlela ezitywina ngayo.I-NPT (iTaper yeMibhobho yeSizwe)umgangatho usebenzisa imisonto enemiqolo ethe tyaba kunye neentlambo.I-BSPT (iBritish Standard Pipe Taper)Imisonto ineprofayili engqukuva, eyiWhitworth. Umahluko obalulekileyo yi-engile. Oku kungafani kwe-engile kuthetha ukuba ukuba uzama ukujija i-NPT fitting kwi-BSPT fitting, kuphela ziincam zemisonto eziya kuchukumisa. Oku kudala uqhagamshelo olubuthathaka oluya kuvuza phantsi koxinzelelo kwaye lunokukrazulwa ngokulula. Azenzelwanga nje ukuba zisebenze kunye.

I-NPT vs. BSPT: Umahluko oPhambili woBugcisa

Uphawu	I-NPT (uMgangatho waseMelika)	I-BSPT (uMgangatho waseBritane)
I-engile yoMsonto	Iidigri ezingama-60	Iidigri ezingama-55
Iprofayili yoMsonto	Iincopho kunye neentlambo ezisicaba	Iincopho ezijikelezileyo kunye neentlambo
Isitywina esiPhambili	Imisonto edibanisa kunye (i-taper)	Isitywini kwimisonto
Ummandla oQhelekileyo	amantla Emelika	IYurophu, iAsia, iOstreliya, iHlabathi

Ngaba i-NPT okanye i-BSP ngumgangatho ongcono wentambo?

Ufuna ukugcina uhlobo olufanelekileyo noluluncedo lwezixhobo ezifakwe imisonto. Ukugcina umgangatho ongafanelekanga kwimarike yakho kuya kukhokelela ekubeni izinto ezisetyenzisiweyo zihambe kancinci kwaye abathengi abangonwabanga.

Akukho nanye kwezi migangatho "ingcono" kunenye ngokwetekhnoloji; zahlukile nje. Olona khetho lulungileyo lolo lusemgangathweni kummandla wakho kwaye luhambelana nezixhobo ezisetyenziswa ngabathengi bakho.

Lo ngumbuzo wendawo, hayi umgangatho. I-NPT yeyona ndlela iphambili eMelika naseKhanada. Ukuba usebenza kwiprojekthi eyilwe yinkampani yaseMelika okanye usebenzisa izixhobo zaseMelika, ngokuqinisekileyo uya kuyidingaIzixhobo ze-NPT. I-BSP, kwelinye icala, ngumgangatho owamkelweyo kwiindawo ezininzi zehlabathi, kuquka iYurophu, i-UK, i-Asia, i-Australia, kunye noMzantsi Afrika. Kwimarike yaseBudi kuMzantsi-mpuma we-Asia, inokuxubaniswa. Ndiyazi ukuba iiprojekthi ezininzi zasekuhlaleni nezaseYurophu ziya kufuna i-BSPT. Nangona kunjalo, iiprojekthi ezinotyalo-mali okanye ubunjineli baseMelika zihlala zichaza imigangatho ye-ANSI, oko kuthetha i-NPT. Ivalvu "eyona ilungileyo" yileyo ikrufula ngokugqibeleleyo kumbhobho womthengi wakho. Yiyo loo nto kubaluleke kakhulu ukubuza nokuqinisekisa ukuba yeyiphi imigangatho efunekayo kwiprojekthi nganye ethile.

Ngaba imisonto ye-NPT ixhaphakile kwizixhobo ze-PVC?

Uodola iivalvu zebhola zePVC kwaye kufuneka ukhethe uhlobo lomsonto. Kufuneka wazi ukuba izixhobo zeplastiki zingenziwa na ngezi ntambo zepayipi zesinyithi eziqhelekileyo.

Ewe, izixhobo zePVC zihlala zenziwe ngemisonto ye-NPT kunye ne-BSP. Oku kuvumela iinkqubo zemibhobho yeplastiki ukuba ziqhagamshelane ngokulula nemibhobho yesinyithi enemisonto, iipompo, kunye nezinye izinto zemibhobho eziqhelekileyo.

Apha ePntek, senza uluhlu olukhulu lwezixhobo zePVC ezineentambo zeNPT kunye neBSP ukuze zincede amaqabane ethu ehlabathi. Ukuxutywa kwentambo yindlela eqhelekileyo yokwenza unxibelelwano olunokuhlanganiswa nokwahlulwa. Nangona kunjalo, kubalulekile ukuqwalasela amandla eplastiki. Inkqubo yokusika intambo isusa izinto kwaye idala indawo yoxinzelelo. Ngenxa yesi sizathu, sisoloko sicebisa ukusebenzisa iindonga ezijiyileyo.Ishedyuli 80 yePVCngenxauqhagamshelo olunemisonto, ingakumbi kwiinkqubo ezinoxinzelelo oluphezulu okanye uxinzelelo loomatshini. Nangona unokuyifaka imibhobho kunye nezixhobo zeShedyuli 40, amandla azo okuphatha uxinzelelo ancitshiswa kakhulu. Ukusebenzisa i-PVC fitting eyenziwe ngemisonto eyenziwe efektri kusoloko kuthembekile kunokusika imisonto ibe yipayipi eqhelekileyo ngokwakho.

Ngaba ningakwazi ukudibanisa imisonto ye-BSPT kunye ne-NPT?

Une-NPT fitting yabasetyhini kunye nombhobho we-BSPT wamadoda ebaleni. Kubonakala ngathi ingangena, kwaye uyalingeka ukuba uyinyanzele ukuba igqibe umsebenzi.

Hayi, akufuneki udibanise imisonto ye-BSPT kunye ne-NPT ngokuthe ngqo. Ii-engile ezingahambelaniyo ziya kubangela ukuba zibophe, zinqamleze imisonto, kwaye zonakalise izixhobo. Oku kudala ijoyinti ebuthathaka eqinisekisiweyo ukuba iya kuvuza.

Ukuzama ukunyanzela le migangatho mibini kunye yindlela yokusilela. Ngenxa yokuba ii-engile zentambo kunye neepitches zahlukile, azikwazi ukunxibelelana kakuhle. Okwenzekayo yinkqubo ebizwa ngokuba yi-“ukunqumla imisonto"," apho umphezulu womsonto omnye unqumla kwingcambu yomnye endaweni yokuhlala kakuhle. Oku kuya konakalisa ngokusisigxina imisonto yesilisa neyesifazana. Nokuba usebenzisa iteyiphu enkulu yokutywina imisonto, ayizukuzalisa izikhewu ezenziwe yijiyometri engahambelaniyo. Uqhagamshelo luya kuvuza kwangoko nje ukuba inkqubo ibekwe phantsi koxinzelelo. Eyona ndlela ichanekileyo neyobungcali yokujoyinaInkqubo ye-BSPT ukuya kwinkqubo ye-NPTkukusebenzisa i-adapter fitting ekhethekileyo. Ezi adapters zenziwe ngemisonto efanelekileyo yabasetyhini neyendoda kwiziphelo ezahlukeneyo ukuze zenze utshintsho olukhuselekileyo nolungenako ukuvuza.

Isiphelo

I-NPT kunye ne-BSPT zimigangatho eyahlukileyo, engahambelaniyo. Ukhetho olufanelekileyo lumiselwa yindawo yeprojekthi yakho kunye neenkcukacha zayo. Soloko uqinisekisa umgangatho ofunekayo ukuqinisekisa uqhagamshelo olukhuselekileyo, oluthembekileyo, nolungenamanzi kwiifittings zakho ze-PVC.