Standartlar
Dizayn va ishlab chiqarish: API 609, ASME B16.34
Sinov tekshiruvi: API 598
Yuzma -yuz o'lchovlari: ANSI 609
Flanesli so'nggi o'lchami: ASME B16.5, ASME B16.47A, ASME B16.47B, MSS SP-44, API 605
Butt-payvandlangan oxirgi o'lchami: ASME B16.25