1. Maikaʻi thermal insulation hana, wela lilo wale 25% o ka kuʻuna lua-ʻaoʻao submerged arc welded paipu, lōʻihi-manawa hana hiki ke hoola i ka hailona o ka ikehu, nui hoemi ikehu koina.
2. He ikaika ka wai a me ka corrosion, ʻaʻole pono e hoʻopili ʻia i ka ʻauwaha paipu, hiki ke kanu pololei ʻia i ka lepo a i ʻole ka wai, maʻalahi a wikiwiki hoʻi ke kūkulu ʻana, haʻahaʻa ke kumukūʻai piha.
3. ʻO ka lua ʻaoʻao submerged arc welded paipu maikaʻi hoʻi i ka corrosion kū'ē a me ka hopena kū'ē ma haʻahaʻa wela, a hiki ke kanu pololei i loko o ka lepo maloo maloo.
4. Hiki i ke ola lawelawe ke hiki i nā makahiki 30-50.Hiki i ka hoʻokomo pono ʻana a me ka hoʻohana ʻana ke hoʻohaʻahaʻa loa i ke kumukūʻai mālama ʻana o ka paipu kuʻihao arc lua ʻaoʻao.
5. Hiki ke ho'onohonoho 'ia ka 'alarm system no ka 'ike 'akomi i ka leakage o ka paipu ho'ohehe'e arc submerged 'ao'ao lua, hō'ike pololei i ka wahi hewa a me ka ho'āla 'akomi.
