Spiral Wound Gaskets can be used to seal fluid pressure up to 250 bar cryoprnices temperature as low as -200°C and up to elevated temperature of 1000°C. Spiral Wound Gaskets are widely used in the oil, gas, petrochemical process and engineering industries.The spiral wound gaskets is made up of winding material body and inner/outer ring.There are spiral wound gaskets with ss304/ss304L tape+graphite/asbestos/PTFE tape,spiral wound gaskets made of ss316/ss316L tape+graphite/asbestos/PTFE tape,spiral wound gaskets made of ss321 tape+grphite/asbestos/PTFE tape,spiral wound gaskets made of other metallic tape+asbestos/graphite/PTFE tape,spiral wound gaskets winding body with ss304/ss304L/ss316/ss316L/carbon steel  inner ring,spiral wound gaskets winding body with ss304/ss304L/ss316/ss316L/carbon steel outer ring,spiral wound gaskets winding body with both ss304/ss304L/ss316/ss316L/carbon steel  inner ring and ss304/ss304L/ss316/ss316L/carbon steel outer ring.
Main specification:
Dimension
Basic form: 3.2mm or 4.5mm
(Thickness tolerance:-0.1mm to +0.2mm)
Outer ring/inner ring :3.0mm
 (Thickness tolerance:-0.24 to +0.24mm)
Coefficient:m=2.5-4
Pressure:=<25MPa
Temperature:-196-700℃
(oxidating condition up to 600℃ at most)
Least tighten pressure:68MPa