Njengoba igama lisho, intambo yepayipi ibhekisela entanjeni esetshenziswa epayipini. Lapha, ipayipi ibhekisela epayipini elijwayelekile. Njengoba lolu hlobo lwepayipi lubizwa ngokuthi ipayipi elijwayelekile, intambo yepayipi empeleni iyintambo engavamile. Izintambo zepayipi, njengendlela yokuxhuma ipayipini, zisetshenziswa kabanzi ekuxhumeni nasekuvaleni amapayipi amancane naphakathi athwala uketshezi namagesi. Kunezinhlobo ezintathu ezivamile zezintambo zepayipini. Lezi yi: intambo ye-NPT, intambo ye-BSPT, kanye nentambo ye-BSPP.
Umehluko omkhulu phakathi kwezinhlobo ezintathu zezintambo:
| Intambo Yepayipi | I-engela | I-Taper/Parellel | Phezulu Naphansi | Ifomu Lokuvala | Okujwayelekile |
| I-NPT | 60° | Kuncishisiwe | Ingaphezulu eliyisicaba, iphansi eliyisicaba | Isigcwalisi | I-ASME B1.20.1 |
| I-BSPT | 55° | Kuncishisiwe | Ingaphezulu eliyindilinga, iphansi eliyindilinga | Isigcwalisi | I-ISO7-1 |
| I-BSPP | 55° | I-Parellel | Ingaphezulu eliyindilinga, iphansi eliyindilinga | I-Gasket | I-ISO228-1 |
Izimiso zokuvala kanye nezindlela zokuvala zezinhlobo ezintathu zezintambo zamapayipi
Kungakhathaliseki ukuthi kuyintambo yepayipi evalwe ngo-55° (BSPT) noma intambo yepayipi evalwe ngo-60° (NPT), intambo yokuvala kufanele igcwaliswe nge-medium ngesikhathi sokuyikrufulula. Ngokuvamile, i-PTFE sealing tape isetshenziselwa ukugoqa intambo yangaphandle, futhi inani le-wraps liyahlukahluka kusuka ku-4 kuya ku-10 kuye ngokuthi ubukhulu be-PTFE sealing tape bunjani. Lapho igebe eliphakathi kwephezulu nephansi kwezinyo liqondanisiwe, liyaqina ngokuqinisa intambo yepayipi. Izintambo zangaphakathi nezangaphandle ziyacindezelwa komunye nomunye, kuqala kususwe igebe eliphakathi kwezinhlangothi ezicindezelwe. Bese, njengoba amandla okuqinisa ekhula, ingaphezulu lezinyo liyaqina kancane kancane, iphansi lezinyo liyaqina kancane kancane, futhi igebe eliphakathi kwephezulu lezinyo nephansi lezinyo liyanyamalala kancane kancane, kufezwe inhloso yokuvimbela ukuvuza. Uma kukhona ukuguquka noma ukuphazamiseka okuhambisanayo phakathi kwephezulu nephansi lezinyo, baqala ngokucindezelana, okwenza ingaphezulu lezinyo libe buthuntu kancane kancane futhi iphansi lezinyo libe buthuntu kancane kancane, bese kuthi izinhlangothi zezinyo zithintene futhi kancane kancane zisuse igebe. Ngaleyo ndlela kufezwa umsebenzi wokuvala intambo yepayipi.
Intambo yepayipi engavaliwe engu-55 ° (BSPP) ayinawo umsebenzi wokuvala, futhi intambo isebenza umsebenzi wokuxhuma kuphela. Ngakho-ke, kudingeka i-gasket yokuvala ukuze kuvalwe ubuso bokugcina. Kunezinhlobo ezimbili zokuvala ubuso bokugcina: enye ukusebenzisa i-gasket eyisicaba ebusweni bokugcina bentambo yesilisa, kanti enye ukusebenzisa i-gasket ehlanganisiwe (i-gasket enwebekayo efakwe ohlangothini lwangaphakathi lwendandatho yensimbi) ebusweni bokugcina bentambo yesifazane.
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Isikhathi sokuthunyelwe: Julayi-22-2025