Product illustration; final geometry follows the approved drawing.
Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.
Selection reference: Pipe flanges — GOST 33259 · Carbon steel / Stainless steel · CT20 / SS304 / SS316 · 1/2" – 48".
The listed values are alternatives within a series, not one combined specification. Identify the required combination.
Selection identifiers: Specified standard: GOST 33259; Material / grade: Carbon steel / Stainless steel · CT20 / SS304 / SS316; Size designations: 1/2" – 48".
Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.
| Specified standard | GOST 33259 |
|---|---|
| Material / grade | Carbon steel / Stainless steel · CT20 / SS304 / SS316 |
| Size designations | 1/2" – 48" |
| Catalogue reference | HC-0251 |
Confirm the material grade, dimensions, pressure class and standard together against the approved drawing before ordering. Schedule denotes wall thickness, not a pressure rating.
Send a bill of materials or drawing with item quantities, material grades, dimensions, standard and edition, inspection documents, packing and destination. Identify any requirements that still need technical review.
Contact our sales teamPipe flanges — GOST 33259 · Carbon steel / Stainless steel · CT20 / SS304 / SS316 · 1/2" – 48" — Include the material grade, dimensions, applicable standard and quantity.
Specified standard: GOST 33259; Material / grade: Carbon steel / Stainless steel · CT20 / SS304 / SS316; Size designations: 1/2" – 48" The applicable standard, mating components and project design conditions must be reviewed together. Size, rating and material combinations are confirmed in the agreed quotation or drawing.
List the material certificates, inspection records and traceability documents required by your project. Their scope and availability must be agreed before ordering.
Include the material grade, dimensions, applicable standard and quantity.
Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.
Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.
Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.
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