BLIND FLANGE ATK 24.200.02-90
Standard: ATK 24.200.02-90
Material: Carbon steel, Stainless steel, Alloy steel.
Nominal Bore (DN): 15 mm - 1200 mm.
Nominal Pressure (PN): 0.1 - 2.5 MPa.
Temperature Range: -70°C - +300°C.
Working Medium: Gases, liquids, chemically aggressive environments, high temperature, and pressure.
Blind flanges according to ATK 24.200.02-90 are used to seal the ends of pipelines and prevent leaks. These flanges have no central hole, making them ideal for isolating sections of a piping system that do not require connection to other elements.
Materials: Steel 20, 09G2S, 12X18H10T, 08X18H10T, 13XFA, 15X5M, 10X17H13M2T, 06XH28MDT, A105, A181, A182, A350, AISI 304, AISI 304L, AISI 316, AISI 316L, AISI 316Ti, AISI 321, etc.
The ATK 24.200.02-90 standard defines five designs of blind flanges:
- Design 1: Flanges with a connecting protrusion for nominal pressure from 0.6 to 4.0 MPa (6 to 40 kgf/cm²).
- Design 2: Flanges with a protrusion for nominal pressure from 1.0 to 6.3 MPa (10 to 63 kgf/cm²).
- Design 3: Flanges with a spigot for nominal pressure from 0.6 to 6.3 MPa (6 to 63 kgf/cm²), except for gasket surface dimensions for fluoroplastic gaskets, which must correspond to those specified in Table 17.
- Design 4: Flanges with a gasket of oval cross-section for nominal pressure from 6.3 to 16.0 MPa (63 to 160 kgf/cm²).
- Design 5: Flanges with a recess for nominal pressure of 4.0 MPa (40 kgf/cm²).
