Sterling Seal and Supply , Inc. API 601 9000IR.500316PTFE2500 Green Band with White Stripe 316SS/PTFE Spiral Wound Gasket with 316SS Inner Ring, -150 to 500 degrees F Temperature Range, 0.56" ID, 2.75" OD, for 1/2" Pipe Size

ASME B16.20 Gaskets for ASME B16.5 Flanges/Class 2500/Inner ring protects sealing element from process media attack
Centering ring accurately locates the gasket on the flange face, provides additional radial strength, and acts as a compression limiter
Spiral winding (sealing element) consists of metal and soft filler material
Temperature range (F) : -150 to 500 Degrees
Durable; easy installation and removal

For applications with high temperature variations (thermal cycling), and/or pressure variations

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