ʻO ka flange welding butt e pili ana i ka flange me ka ʻāʻī a me ka hoʻololi paipu poepoe a me ka pilina kuʻi ʻana me ka paipu.Hana mākou i ka ASME B16.5 wili puʻupuʻu liʻiliʻi, ASME B16.47 puʻupuʻu puʻupuʻu puʻupuʻu, DIN 2631 puʻupuʻu puʻupuʻu wiliwili wiliwili wiliwili wiliwili, DIN 2637 puʻupuʻu puʻupuʻu wiliwili, DIN 2632 puʻupuʻu kuʻekuʻe wāwae, DIN 2638 butt welding flanges 263, 3 etc. He mea kūpono nā flanges welding no nā paipu me nā loli nui i ke kaomi a i ʻole ka wela a i ʻole ke kiʻekiʻe o ka wela, hoʻohana ʻia nā pipeline kiʻekiʻe a me ka wela haʻahaʻa no nā pipeline e lawe ana i ka media pipiʻi, flammable a pahū.ʻAʻole maʻalahi ka hoʻololi ʻana o nā flanges welding butt, maikaʻi ke sila ʻana, a hoʻohana nui ʻia.