OC-JS-01Technical & custom
Spiral-wound gaskets
Metal / graphite composite sealing for flanges
A spiral-wound gasket is a composite metal gasket: a strip of stainless steel wound into a spiral, alternating with a filler of flexible graphite or PTFE. That construction gives it the resilience of a soft gasket and the mechanical strength of metal.
It is designed for flanges under high pressure and wide temperature swings: steam, heat-transfer oils, gases, hydrocarbons and chemical fluids. It is a single-use gasket, replaced every time the flange is opened.
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Specifications
OC-JS-01 — Spiral-wound gaskets
- Standards
- EN 1514-2 · ASME B16.20
- Sizes EN 1514-2
- DN 10 → DN 1000 · PN 10 → PN 320
- Sizes ASME B16.20
- NPS ½″ → 24″ · Class 150 → 2500
- Thicknesses
- 3.2 · 4.5 · 6.4 mm
- Types
- R (no ring) · CG (outer ring) · CGI (inner and outer rings)
- Winding strip
- Stainless 304 · 316L · 321 · 347 · Monel 400 · Nickel 200 · Titanium · Alloy 20 · Inconel 600 · Hastelloy C-276 · Incoloy 800
- Filler
- Flexible graphite · PTFE
- Centring rings
- Carbon steel · stainless steel
- Temperatures
- Graphite −200 to +1000 °C · PTFE −200 to +260 °C
- Service
- Single-use gasket, replaced each time the flange is opened
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Applications
- Process piping flanges
- Steam and district heating
- Petrochemicals and chemicals
- Heat exchangers and valves
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A quotation on this reference?
Tell us the quantity, the material you need and the dimensions. We will come back to you quickly.
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Frequently asked questions
- Which materials for Spiral-wound gaskets?
- Stainless 304, Stainless 316L, Graphite, PTFE, Carbon steel
- What are the typical applications?
- Process piping flanges ; Steam and district heating ; Petrochemicals and chemicals ; Heat exchangers and valves
- How do I get a quote?
- Send us your reference or dimensions, along with the fluid and operating conditions, through the contact form or at [email protected].
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