Manufacture Specification
ASME B16.20/B16.21
Metal Gasket
Oval Ring, Octagonal Ring, RX, BX
Semi-Metallic Gasket
Spiral Wound, Corrugated, Reinforced Graphite, Reinforced Rubber
Non-Metallic Gasket
Purified PTFE, Modified PTFE, Expanded PTFE, PTFE Envelope, Compressed Non-Asbestos Fiber, Non-toxic Silica Rubber