Weld neck flanges / Plate flanges Product series — GOST 33259 · TYPE01 / TYPE11 · Carbon steel · CT20
Confirm the neck bore, weld preparation and mating pipe wall together. Identify the required flange facing on the drawing.
Weld neck flanges / Blind flanges Product series — GOST 33259 · TYPE11 · Stainless steel
Confirm the neck bore, weld preparation and mating pipe wall together. Identify the required flange facing on the drawing.
Blind flanges — Carbon steel · 0.5" · PN63
For a closed pipe end, confirm the mating flange drilling, facing and required thickness. State whether any tapping or opening is required.
Pipe flanges — GOST 33259 / GOST 12820 / GOST 12821 · Carbon steel / Stainless steel · CT20 / SS304 / SS316 · DN15 – DN2000
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.
Weld neck flanges / Plate flanges Product series — GOST 12820-80 / GOST 33259 / GOST 12821-80 · Carbon steel · CT20 · PN10 / PN16 / PN25 · RF
Confirm the neck bore, weld preparation and mating pipe wall together. Identify the required flange facing on the drawing.
Pipe flanges — GOST 33259 / GOST 12820-80 / GOST 12821-80 · Carbon steel · CT20
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.
Pipe flanges — GOST 33259 · TYPE 01 02 05 · FF
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.
Pipe flanges — DN10 – DN1600 · PN160 · Galvanized
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.
Weld neck flanges — GOST 12821 · Carbon steel / Stainless steel · F321 / CT20 · RF / FF / RTJ
Confirm the neck bore, weld preparation and mating pipe wall together. Identify the required flange facing on the drawing.
Weld neck flanges / Slip-on flanges / Blind flanges Product series — GOST 12820 / GOST 12821 / GOST 33259 · TYPE11
Confirm the neck bore, weld preparation and mating pipe wall together. Identify the required flange facing on the drawing.
Weld neck flanges / Slip-on flanges / Blind flanges Product series — GOST 33259 / GOST 12820 / GOST 12821 · PN6 / PN10 / PN16 / PN25 / PN40
Confirm the neck bore, weld preparation and mating pipe wall together. Identify the required flange facing on the drawing.
Weld neck flanges — GOST 33259 · Carbon steel · Q235 · DN10 – DN500
Confirm the neck bore, weld preparation and mating pipe wall together. Identify the required flange facing on the drawing.
Category buying guide
Select the flange type for your piping connection. For a quotation, provide the standard and edition, material grade, DN or NPS, PN or Class, facing, mating pipe dimensions and quantity. Size and rating combinations are confirmed for the selected type and standard.