Phelps Style 900 gaskets are available in a wide variety of flanges, materials, sizes, pressure and temperature ranges. The Compression/Outer ring facilitates accurate centering, easier, quicker installation and acts as a radial pressure retaining ring while limiting the "crush" of the spiral/filler section. Style 9000 Metal Gaskets that comply with the requirements of MIL-G-24716 are also available. Phelps Spiral Wound are availble for ASME/ANSI B16.5 Flanges, B16.47 Series A and Series B Flanges.