Hoʻopaʻa ʻia nā paipu wiliwili ʻia (ssaw) ma waho, a ʻo ka hapa nui o ia mau mea i kanu ʻia ma lalo o ka lepo ke hoʻohana ʻia, no laila ua maʻalahi lākou i ka ʻino a me ka ʻōpala. I mea e hōʻoiaʻiʻo ai i ka holo mālie o ka pipeline, pono e loaʻa i ka paipu welded spiral ke kūpaʻa ikaika. Ke hoʻopau ʻia ka pipeline, e hoʻoheheʻe ʻia ka aila a me ke kinoea, ʻaʻole ia e hoʻopau wale i ka lawe ʻana, akā e hoʻohaumia hoʻi i ke kaiapuni, a hiki i ke ahi a me ka pōʻino. E haʻi aku nā mea hana paipu welded spiral iā ʻoe e pili ana i nā kumu e hoʻopōʻino ai i nā paipu welded spiral:

ʻO nā kumu o ka ʻōpala o ka paipu welded spiral:

1. ʻAʻohe ʻino.

Ke kūkulu ʻia ka pipeline, pono e hana maikaʻi i ka hana anti-corrosion a i ʻole e hoʻohana pono i nā paipu kila anti-corrosion spiral. ʻO ke kumu o ka ʻino ʻana o ka pipeline ʻo ia ka mea i hōʻino ʻia ka papa anti-corrosion o ka pipeline. Ke hoʻokaʻawale ʻia ka papa anti-corrosion a me ka ʻili o ka pipeline, e hana maoli ia i ka hāʻule anti-corrosion. ʻO kēia hoʻi ke ʻano alapiʻi. Pono mākou e koho i ka paipu welded spiral anti-corrosion i ke kūʻai ʻana i ka paipu welded spiral.

2. Ka hopena o nā kūlana o waho.

ʻO ka mea nui, ʻo ka nānā mua ʻana i nā ʻano a me ka mahana o ka waena a puni ka pipeline, a inā he corrosive ka medium a puni ka pipeline. No ka mea, pili pili loa ka corrosiveness o ka medium i nā microorganisms like ʻole i loko o ka lepo. A inā he pipeline lōʻihi, ʻoi aku ka paʻakikī o ke ʻano o ka honua. Eia kekahi, ʻo ka mahana o ke kaiapuni kahi i loaʻa ai ka pipeline e pili pū i ka corrosion o ka paipu welded spiral. Inā ʻoi aku ka kiʻekiʻe o ka mahana, e hoʻolōʻihi ʻia ka nui o ka corrosion, ʻoiai ka haʻahaʻa haʻahaʻa, e hoʻolōʻihi ʻia ka nui o ka corrosion.