Spiral Wound Gasket with Carbon Steel Outer Ring, SS316L Winding, and Graphite Filler Inner Ring - Style GRI

The DEMINAS spiral wound gasket Style GRI is built for reliable sealing in the most demanding pipe flange applications. It features a carbon steel outer ring with epoxy coating for corrosion protection, SS316L winding for strength and flexibility, graphite filler for outstanding thermal and chemical sealing performance, and an SS316 inner ring that prevents the filler from being over-compressed and blown inward.

Technical Specifications

• Style: GRI — CS outer ring / SS316L winding / graphite filler / SS316 inner ring
• Outer Ring: Carbon Steel, epoxy coated
• Winding Material: SS316L stainless steel
• Filler Material: Flexible graphite
• Inner Ring: SS316 stainless steel
• Standard: ASME B16.20

When to Use Style GRI

The inner ring on a GRI-style gasket is recommended for high-pressure applications, small bore pipe flanges, and anywhere the filler material needs to be supported against inward blow-out. It is the standard choice for ASME class 300 and above applications.

Applications

• Oil and gas piping systems
• Chemical and petrochemical plants
• Steam lines and pressure vessels
• Power generation pipe flanges

Why Buy From DEMINAS

DEMINAS spiral wound gaskets are manufactured to ASME B16.20 and are available in a range of pipe sizes. Contact us if you need a size not listed or have a non-standard requirement — we can source or advise on the right specification for your application.