This document summarizes GOST 12815-80, which establishes types, connecting dimensions, and dimensions of sealing surfaces for flanges used on valves, fittings, and pipelines with operating pressures from 0.1 to 20 MPa. It is available for purchase from Russiangost.com in various languages and formats, including electronic PDF and print editions.

1. GOST 12815-80
Flanges for valves, fittings and pipelines for Pnom from 0,1 to 20 MPa (from 1 to 200kgf/sq sm). Types. Connecting dimensions and
dimensions of sealing surfaces
ГОСТ 12815-80
Фланцы арматуры, соединительных частей и трубопроводов на Ру от 0,1 до 20,0 МПа (от 1 до 200 кгс/см кв.). Типы.
Присоединительные размеры и размеры уплотнительных поверхностей
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