Uyini umehluko phakathi kwepayipi lensimbi engenamthungo kanye nepayipi lensimbi elishiselwe?
Njengamanje, amapayipi ensimbi asetshenziswa ekuphileni kwethu kwansuku zonke ahlukaniswe abe izinhlobo ezimbili: amapayipi ensimbi ashiselwe kanye namapayipi ensimbi angenasici.Umehluko phakathi kwalawa mapayipi amabili ensimbi ungahlaziywa ezicini ezintathu:
1. Ngokubukeka, umehluko phakathi kwepayipi lensimbi engenamthungo kanye nepayipi lensimbi elishiselwe ukuthi udonga lwangaphakathi lwepayipi elishiselwe linezimbambo zokushisela, kuyilapho ipayipi lensimbi elingenasici lingenalo.
2. Ukucindezela kwepayipi elingenamthungo kuphezulu, futhi ipayipi elishiselwe ngokuvamile liba ngu-10MPa.Manje ipayipi elishiselwe alinamthungo.
3. Ipayipi lensimbi engenamthungo lakhiwe ngesikhathi esisodwa ngesikhathi sokugoqa.Amapayipi ensimbi ashiselwe adinga ukugoqwa futhi ashiselwe, futhi i-spiral welding kanye ne-welding eqondile ngokuvamile isetshenziswa.Amapayipi angenamthungo asebenza kangcono futhi vele abiza ngaphezulu.