A na-eme nkọwapụta nke ụdị flange site na ụkpụrụ ASME B16.5. Ya mere, flanges na-nkewa dị ka; weld olu, slip-on, sọket weld, nkwonkwo ụkwụ, eri kpuru ìsì. Flanges olu weld dị mfe ịmata. A na-ejikọta mpụta cylindrical nke nwere radius ji nwayọọ nwayọọ na-abawanye na akụkụ bụ isi oghere.