CT20 Q235 Carbon Steel Weld Neck Raised Face Flange GOST 12821 DN10-DN1600
Carbon Steel / Stainless Steel Welding Neck Flange With GOST 12821
Description:
Weld Neck Flanges are flanges that designed to be joined to a piping system by butt welding. the WN Flange is relatively expensive because of its long neck, but is preferred for high stress applications. The neck, or hub, transmits stresses to the pipe, reducing stress concentrations at the base of the Welding-Neck flanges. The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange. The bore of the Weld-Neck flange matches the bore of the pipe, reducing turbulence and erosion.
Specifications:
The flange conforming to GOST 12821, Pressure PN6 to PN63, made from carbon steel or stainless steel. Used in machinery, petroleum, chemical, water, electricity, shipbuilding sectors piping systems, etc
Type: Welding Neck Flange
Standard: GOST 12821
Pressure: PN6-PN63
Size: DN10-DN1600
Material: CT20; Q235; SS304/304L, SS316/316L
Coating: Rust-proof oil, yellow paint, galvanized.
Gost flange is a flange system from Russia, include Plate Flanges(GOST12820-80),Blind Flanges
(GOST12836-67),Welding neck Flanges(GOST12821-80), Steel Butt-Welded Flanges GOST12821-80 etc., size from DN15 to DN1600, Plate flange, welding neck flange, slip on welding plate flange.
| Standard | Type | Size | Pressure | Material |
| GOST 12820-80 | Slip-On | DN10-DN1600 | PN6,PN10,PN16,PN25 |
CT20; Q235; SS304/304L, SS316/316L |
| GOST 12821 | Welding Neck | DN10-DN1600 | PN6,PN10,PN16,PN25, PN40, PN63 |
CT20; Q235; SS304/304L, SS316/316L |
| GOST 12836-67 | Blind | DN10-DN500 | PN6,PN10,PN16,PN25, PN40, PN63 |
CT20; Q235; SS304/304L, SS316/316L |
Applications:
Machinery, petroleum, chemical, water, electricity, shipbuilding sectors piping systems and devices
Competitive Advantage: meet various customer’s demand
