Profile: Draco Mechanical Supply specializes in fluid sealing products. Our product line includes metallic gaskets, gasket materials, mechanical seals, expansion joints, pump components, and O- rings. Our spiral wound gasket is made with an alternating combination of formed metal wire, and soft filler materials. It forms a very effective seal when compressed between two flanges. The spiral wound gasket may include a centering ring, an inner ring, or both. The outer centering ring centers the gasket within the flange, and acts as a compression limiter, while the inner ring provides additional radial strength. The inner ring also reduces flange erosion, and protects the sealing element. Our Kalrez® O-ring is an elastomer. It resists over 1,800 different chemicals while offering the high temperature stability of PTFE (327°C). These elastomers are used in aggressive chemical processing, semiconductor wafer processing, pharmaceuticals, oil & gas recovery, aerospace, and petroleum applications.