ʻO ka paipu hoʻonui wela kahi ala kūikawā e hoʻonui ai i ka hoʻohana ʻana i ka hydraulic a i ʻole mechanical e koi ana i ka paipu kila mai ka pā kila ma ka radially outward dilatation molding pressure processing technology. Mechanical 'ano ma mua o hydraulic kaʻina hana, mea, maʻalahi a me ka oi mana i loko o ke ao nei alakaʻi pono'ī-nui-caliber seam welded paipu hoonui kaʻina kaʻina koho.

ʻO ke ʻano hana o ka paipu hoʻonui wela, ʻo ia ka paipu anawaena liʻiliʻi e hana ana i kahi paipu anawaena nui. Thermal hoonui paipu wela-'ōwili kila mechanical waiwai ma mua o ka mea emi. Limited i ka maʻamau kila seamless kila paipu i kaupalena 'ia, e like me ka hopena-mea kūʻai mai koi thermal hoʻonui paipu no laila ua hanau, thermal hoʻonui paipu arbitrary maʻamau kükohu mea nui, maʻamau ma muli o ka mea kūʻai mai pono a me manufacturing, thermal hoʻonui paipu mea, mākou. 'Ōlelo pinepine i ka hoʻonui wela o ka paipu, he haʻahaʻa ka haʻahaʻa, akā ʻo ka hoʻopōkole ʻana i kahi paipu kila ikaika, (seamless steel pipe) hiki ke kapa ʻia he hoʻonui wela.