While many industries still refer to this legacy standard for older infrastructure, it has largely been superseded: Заглушки фланцевые ГОСТ 12836-67
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is a Soviet-era technical standard that specifies the design, dimensions, and technical requirements for steel flanged plugs (blind flanges) with a connecting ridge . These components are used to permanently or temporarily seal the ends of pipelines in industrial systems like oil, gas, and water supply. Key Technical Specifications Operating Pressure ( Pycap P sub y ): From Nominal Diameter ( Dycap D sub y ): Typically ranges from , depending on the pressure rating. While many industries still refer to this legacy
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