304 spiral wound gaskets are typically composed of metal strips and non-metallic filler materials. The metal strips are usually made of 304 stainless steel due to their corrosion resistance and high-temperature tolerance, allowing them to adapt to various chemical media and temperature conditions. The non-metallic filler materials include graphite, asbestos (Note: asbestos usage has been gradually reduced in modern industry, with asbestos-free materials being more commonly used), polytetrafluoroethylene (PTFE), etc., which offer good sealing flexibility and resilience. The metal strips and filler materials are wound into a spiral shape using specialized equipment, with metal rings added on the inner and outer circles to enhance structural stability and prevent loosening. The inner ring serves to position and protect the gasket, while the outer ring provides reinforcement and assists in installation.
Specification
Type: Spiral Wound Gasket.
Materials: SUS 304+Asbestos.
Pressure Rating: JIS 20K.
Size: 10 Inch (DN250).
Feature: Spiral Wound Gasket with Outer & Inner Ring.
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