Covers forged steel flanges with a raised face for pressures Pycap P sub y
(Nominal Diameter) 10–1600 mm, based on the corresponding piping flange standard. gluhie zaglushki gost
up to 16 MPa (depending on standard) and high temperatures, often used in oil, gas, and chemical industries. Common Marking Example Covers forged steel flanges with a raised face
Replaces older standards (including parts of GOST 12820-80, 12821-80) and defines modern steel blind flanges for nominal pressures Pycap P sub y 0.1 to 16.0 MPa. often used in oil