Ipayipi lensimbi iphrojekthi yepayipi legesi esetshenziswa kakhulu. Izinzuzo zayo eziyinhloko yilezi: amandla aphezulu, ukuqina okuhle, ukuthwala ukucindezeleka, ukumelana nomthelela nokuqinile, ipulasitiki enhle, i-welding elula kanye nokucubungula okushisayo, ukushuba kodonga kuncane, ukonga insimbi. Kodwa ukumelana kwayo nokugqwala okungekuhle, kudingeka kube nezinyathelo ezifanele zokunqanda ukugqwala.

Amapayipi ensimbi amapayipi egesi edolobheni elikhulu lamapayipi ensimbi angenamthungo futhi ashiselwe ngezigaba ezimbili. Ipayipi lensimbi elinamandla amakhulu, kodwa khawula inqubo yokukhiqiza kanye nezindleko ngepayipi lensimbi elinobubanzi obuncane DN200 ngezansi. Izinhlobo ezengeziwe zamapayipi ensimbi ashiselwe, i-welding ingahlukaniswa ngamapayipi ensimbi ahlanganisiwe aqondile kanye nezinhlobo zamapayipi ensimbi ahlanganisiwe. Phakathi kwazo, ipayipi lensimbi elicijile lensimbi eliqondile (ngemuva kwalokhu elibizwa ngokuthi ipayipi lomthungo) lihlanganisa ipayipi lensimbi le-LSAW kanye ne-high frequency resistance welding (ERW) ipayipi lensimbi nezinye izinhlobo. Ipayipi lensimbi elishiselwe okuvunguza (i-saw steel pipe) iyipayipi elivunguzayo elingaphansi kwe-arc elihlanganisiwe (HSAW).

Inqubo yokukhiqiza i-seam eqondile kanye ne-spiral pipe iyaqhathaniswa, eyokuqala inenzuzo yalokhu:
① Inqubo yokukhiqiza ipayipi elivunguzayo ukuze kutholwe ukucindezeleka kwawo okuyinsalela kukhulu kunepayipi lomthungo oqondile, ipayipi lomthungo elinomphumela ophelele wenqubo ekhulayo, ukucindezeleka okuyinsalela kusondele ku-zero, kuyilapho ukuvunguza ayikwazi ukwenza lokhu;

② Uhlangothi olungalungile lwe-spiral weld ikakhulukazi ku-1.1 ~ 1.2mm, izinga lidinga inani lohlangothi olungalungile lodonga olungaphansi kuka-10% kumashubhu anezindonga ezincane, uhlangothi olungalungile lunzima ukuhlangabezana nezidingo ezijwayelekile, futhi ipayipi lomthungo oqondile alikho Le nkinga;

③ Uma kuqhathaniswa nepayipi lomthungo oqondile, ukugeleza komugqa we-spiral weld kubi, ukucindezeleka okukhulu okugxilile;

④ indawo ethintekile yokushisa ikhoyili inkulu kunepayipi lomthungo oqondile, futhi indawo ethintekile yokushisa iwukhiye wekhwalithi;

⑤ Kuvunguza geometry nokunemba, endaweni ukwakhiwa, njengoba uzakwabo, Welding ukuletha ubunzima.