1. Ngobaamapayipi nezidingo zokushefa okuphezulu kakhulu, ngenxa yokusetshenziswa kwegesi okungalingani ngabasebenzisi, ukuguquguquka kwengcindezi yamapayipi njalo, kanye nokucindezeleka okushintshwayo okuhlushwa amapayipi ensimbi, amaphutha akhona emapayipini azokhula ngaphansi kwengcindezi eshintshanayo.Amapayipi ensimbi ashiselwe nge-Spiral anama-welds amaningi kanye namathuba aphezulu okukhubazeka awakwazi ukuqinisekisa ukusebenza kwawo okuvamile.

2. Ipayipi lidlula endaweni enephutha lokuzamazama komhlaba noma endaweni yasendaweni yokuzamazama komhlaba okunamandla kakhulu.Ngenxa yemisebenzi evamile yokwakheka komhlaba kulezi zigaba, ukucindezelwa okushintshanayo kwe-longitudinal noma kwe-axial kungenziwa epayipini.Maningi ama-spiral welds, futhi amathuba okuba nokukhubazeka angaphezulu kwalawo amapayipi ensimbi ashiselwe i-arc angaphansi.Ngaphansi kwengcindezi yesikhathi eside, amathuba ezingozi zamapayipi ensimbi ashiselwe ku-spiral aphakeme kakhulu kunalawo amapayipi ensimbi afakwe ngaphansi kwe-arc.Ngakho-ke, amapayipi ensimbi e-arc angaphansi kwamanzi kufanele asetshenziswe kule ndawo.

3. Ngamapayipi anezidingo eziphezulu zangaphakathi nezangaphandle zokuhlanganisa i-anti-corrosive, amapayipi ensimbi e-arc angaphansi kwamanzi kufanele asetshenziswe.Amapayipi ensimbi ashiselwe i-arc angaphansi kwamanzi anezinsimbi eziningi, futhi ukuphakama komthungo we-weld ngokuvamile kuphakeme kunokwamapayipi ensimbi afakwe ngaphansi kwe-arc.Lapho ipayipi lensimbi livikelwe ekugqwaleni kwangaphakathi nangaphandle, inhlanganisela yezinto ezilwa nokugqwala kanye nepayipi elingenalutho alinamandla njengepayipi lensimbi elishiselwe i-arc elingaphansi, futhi umphumela wokuqeda ukugqwala ngeke ucwiliswe.

4. Ngobunjiniyela obubalulekile obunqamulayo, amapayipi ensimbi e-arc angaphansi kwamanzi kufanele asetshenziswe.Njengoba ukugcinwa nokuphathwa kwesikhathi esizayo kuzoba nzima kakhulu kunezigaba zamapayipi ezivamile, ukusetshenziswa kwamapayipi ensimbi ye-arc angaphansi kwamanzi asebenza kubaluleke kakhulu.

1. Ukuze uthole izixhumanisi ezibuthakathaka emigqeni yamapayipi, njengamapayipi endololwane ashisayo, amapayipi ensimbi e-arc angaphansi kwamanzi kufanele asetshenziswe.Ngenxa yokushintsha kwendlela, indololwane egoqwe ngokushisayo ingakwazi ukumelana namandla amakhulu angaphakathi nangaphandle kunengxenye yepayipi eliqondile lepayipi elivamile.Ngenxa yezici ezihlukahlukene enqubweni yokuvimbela, ukucindezeleka kwayo akulula ukukuqeda, futhi kuyisixhumanisi esibuthakathaka uma kuqhathaniswa nepayipi lebanga elide.Ukusetshenziswa kwamapayipi ensimbi afakwe ngaphansi kwe-arc ashiselwe anezakhiwo ezinhle eziphelele kungenza lokhu kushiyeka.