Flexitallic cgi0166gc2000 Spiral Wound Gasket 20 in 150

Product Description

The FLEXITALLIC cgi0166gc2000 is a Style CGI spiral wound gasket designed for use in piping flange connections requiring a reliable, high-integrity seal. Style CGI builds on the standard CG design by adding an inner compression ring that acts as a secondary stop, limits winding compression, and provides a heat and corrosion barrier that protects the spiral windings from process media. This inner ring also helps prevent erosion of the flange seating surface. The gasket is rated for 150 Class service and is constructed with 316L stainless steel, making it suitable for demanding process and industrial piping applications. Installation is typically performed by licensed pipefitters or industrial mechanics.

This gasket is intended for use in 20-inch nominal pipe size flange connections at 150 Class pressure ratings. It is compatible with both flat face and raised face flange configurations, broadening its range of suitable installations. Typical applications include process piping systems in petrochemical, refining, power generation, and industrial plant environments where thermal cycling, pressure variation, or corrosive media require a robust gasket solution. The inner ring design is particularly relevant in applications where flange erosion or gasket blowout is a concern.

Key Features

• Style CGI construction includes an inner ring that limits compression and protects spiral windings from heat and corrosion
• Inner ring helps prevent erosion of flange bore and seating surfaces
• Compatible with both flat face and raised face flange types
• 316L stainless steel construction for corrosion resistance in demanding process environments
• 20-inch nominal size for large-diameter piping systems
• 150 Class pressure rating for standard industrial service

Compatibility

Designed as an OEM-style spiral wound gasket for 20-inch nominal, 150 Class raised face and flat face pipe flanges in industrial piping systems.

Installation Notes

Installation should be performed by a qualified pipefitter or mechanical contractor following applicable piping codes such as ASME B16.20 and ASME B31.3. De-energize and depressurize the piping system completely before removing the existing gasket and seating surfaces. Inspect flange faces for corrosion, pitting, or damage before installing the new gasket. Do not reuse spiral wound gaskets once they have been compressed in service.

Technical Specifications

• Material: 316L Stainless Steel
• Nominal Size: 20 inches
• Pressure Class: 150
• Style: CGI

Standard Information

• Brand: FLEXITALLIC
• Manufacturer Part Number: cgi0166gc2000