Ịkwado ikpere aka

(1)Ịkwado ikpere akaEnwere ike kewaa ya n'ime ikpere aka ogologo radius butt welding na ikpere aka mkpụmkpụ radius butt welding dịka radius nke mgbagọ ha si dị. radius nke mgbagọ nke radius butt welding elbow dị okpukpu 1.5 nke dayameta mpụta nke paịpụ ahụ, ya bụ, R = 1.5D. radius nke mgbagọ nke radius butt welding elbow dị mkpụmkpụ hà nhata dayameta mpụta nke paịpụ ahụ, ya bụ, R = 1D. N'ime usoro ahụ, D bụ dayameta nke elbow welding butt, R bụkwa radius nke mgbagọ. Ọ bụrụ na enweghị nkọwa pụrụ iche, a na-ejikarị elbow 1.5D eme ihe.
(2) Dịka ọkwa nrụgide si dị, e nwere ihe dị ka ụdị iri na asaa, nke bụ otu ụkpụrụ ọkpọkọ ndị America, gụnyere: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, Sch100, Sch120, Sch140, Sch160, XXS, nke a na-ejikarị eme ihe bụ STD na XS.
(3) Dịka akụkụ nke ikpere aka si dị, e nwere ikpere aka nke na-agbado ụkwụ n'úkwù ruo ogo 45, ikpere aka nke na-agbado ụkwụ ruo ogo 90, ikpere aka nke na-agbado ụkwụ ruo ogo 180 na ikpere aka ndị ọzọ nwere akụkụ dị iche iche.
(4) Ihe ndị e ji mee ya bụ: ígwè carbon, ígwè alloy na ígwè anaghị agba nchara.