Kaxite Sealing manufactures Style CGI spiral wound gaskets to ASME B16.20. The CGI configuration carries both an inner ring and an outer guide ring. The inner ring acts as a compression stop that prevents the winding from buckling inward under high bolt load; the outer ring centres the gasket on the flange and limits compression.
If your plant is sealing high-pressure steam, hydrocarbon or chemical lines on raised-face or IBC flanges, the CGI style is the standard choice — it holds its sealing element under fluctuating temperature and pressure far better than a single-ring design. Metal winding ranges from SS304 through Monel, Inconel, Hastelloy and Duplex; filler options cover graphite, PTFE, vermiculite and non-asbestos.
Standard sizes are produced to ASME B16.5, ASME B16.47 A/B, BS EN 1092, BS 10/1560/4504/1759 and DIN. Custom sizes, OEM private-label packaging and flexible MOQ are available for B2B buyers. Send your flange standard, nominal pipe size, pressure rating and materials and we will quote.
Style CGI is the new standard spiral wound gasket per ASME B16.20 and is required unless otherwise specified by the user. It is constructed from three parts: an inner ring, a spiral wound sealing element, and an outer guide ring.
Compared to the CG style — which has only an outer ring — the CGI adds an inner ring that sits inside the winding bore. This inner ring provides an additional compression limiting stop and prevents the winding from buckling inward when the flange bolts are tightened to full load. The inner ring is typically made from the same material as the winding, but can be produced in other alloys depending on the service medium.
Single outer guide ring centres the gasket on the flange and limits compression. Suitable for moderate service on raised-face flanges where bolt load is controlled.
Inner ring acts as a compression stop, preventing inward winding buckling under high bolt load. Outer ring centres and limits. Standard for high-pressure, high-temperature and IBC flanged joints.
Style CGI gaskets are suitable for raised-face and flat-face flanged connections, and for moderate to severe service conditions. They are specified across a wide range of flange types and industries.
Pipes, valves, pumps, heat exchangers, condensing towers, plain-hole and manhole flanges.
Chemical, petrochemical, mechanical manufacturing, power station, metallurgy, shipbuilding, pharmaceutical and nuclear power.
Moderate to severe service where temperature and pressure fluctuate; abrasive media where the metal inner ring protects the sealing element.
Pass partition bars available in any configuration. Standard shelf life up to 36 months when stored in dry conditions.
Three components define the performance of a CGI gasket: the metal winding strip, the filler material, and the ring materials (inner and outer). Each is selected independently to match the service medium, temperature and pressure.
The winding is the sealing element. Choose the alloy based on corrosion resistance and temperature.
The filler sits between winding layers and forms the primary seal. Match to the medium and temperature.
The outer guide ring standard material is carbon steel. The inner ring material is typically matched to the winding but can be produced in a different alloy for special service.
The outer guide ring of a spiral wound gasket is painted to identify the winding metal at a glance. This lets maintenance teams verify the correct gasket is being installed without measuring or testing the material.
Style CGI spiral wound gaskets are manufactured in accordance with all relevant gasket specification standards and can be produced to suit the following flange designations.
Send the four items above together with quantity and destination port, and we will return a firm unit price, lead time and available samples. Non-standard sizes and pass partition bars are produced to your drawing.
Send your flange standard, nominal pipe size, pressure rating and materials. Our sales engineers reply with a quotation, available samples and the packing options for your market.
Address
No 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
