Pombi yepasi roseflangechiyero chinonyanya chine masisitimu maviri, anoti European pombiflange systeminomiririrwa neGerman DIN (kusanganisira yaimbova Soviet Union) uye pombi yeAmericaflange systeminomiririrwa neAmerican ANSI pombiflange. Mukuwedzera, kune Japanese JIS pombiflanges, asi mukuisa petrochemical kunowanzo shandiswa kumabasa eruzhinji chete, uye mhedzisiro yepasirese idiki. Iyo pombi flange yenyika dzakasiyana inounzwa pazasi:

1, kuGermany uye yaimbova Soviet Union semumiriri weEuropean system pipeflange
2. American system pipe flange standard, inomiririrwa neANSIB16.5 uye ANSIB16.47
3, British uye French pombi flange zviyero, nyika mbiri imwe neimwe ine maviri pombi flange zviyero.
Kupfupisa, chiyero chepasi rose chepombi flanges chinogona kupfupikiswa semhando mbiri dzakasiyana uye dzisingachinjike pombi flange masisitimu: European pipe flange system inomiririrwa neGermany; Imwe iAmerican pipe flange system inomiririrwa neUnited States.
Ios7005-1 chiyero chakaburitswa neInternational Organisation for Standardization muna 1992, chiyero chiri United States neGermany maviri akateedzana epombi flanges akabatanidzwa mune pombi flange standard.