Spiral Flat Wound Gasket High Quality
Product Model Coding & Standard Models
Model Coding Rule
Code: SWG-F-Metal-Filler-Ring
SWG: Spiral Wound Gasket
F: Flat for FF flanges
Metal: SS strip grade
Filler: Soft sealing filler
Ring: IR=Inner, OR=Outer, IROR=Double rings
Technical Parameters
Strip: 304/316L/321/2205/Hastelloy
Filler: Graphite, PTFE, Mica, Non-asbestos
Flange: FF
Temp: Graphite -20~650℃; PTFE -50~260℃; Mica ≤850℃
Pressure: Class150-2500, PN10-PN160
Property: Recovery≥70%, Compression 25%-40%
Size: DN15-DN2000, 2.5/3.2/4.5mm (custom)
Outer Ring: Yellow steel, 304/316L SS
Product Advantages
lat thin design fits flat flanges perfectly, uniform stress distribution without shifting during installation.
Composite semi-metallic structure combines metal strength and soft filler elasticity.
Outstanding rebound performance to compensate flange deformation caused by thermal expansion & contraction.
Application Scenarios
Oil & Gas: Pipelines, tanks, wellheads
Metallurgy: High temp pipes, furnaces
Pressure Vessel: Tanks, reactors
Shipbuilding: Marine pipelines
| Matching Flange Type | Flat Face (FF) Flanges |
| Thickness | 2.5mm, 3.2mm, 4.5mm |
| Winding Strip Profile | V-shaped precision formed stainless steel strip |
| Outer Ring Material | Yellow coated carbon steel, 304 SS, 316L SS |
| Winding Strip | 304, 316L, 321, Duplex 2205, Hastelloy C276 stainless steel |
| Recovery Rate | ≥ 70% |
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