Description
Features & Benefits
- Tight seal
- Highly compressible PTFE outer layers seal under low bolt load
- Compressible layers conform to irregularities, especially on warped, pitted, or scratched flanges
- Rigid PTFE core reduces cold flow and creep
- Withstands a wide range of chemicals
- Can be cut from larger sheets, reducing inventory costs and expensive downtime
- Rigid PTFE core facilitates installation, especially on large diameter flanges and hard-to-reach areas
- Will not support flame
- Will not support bacterial growth
Specification
- Available in sheet or cut gasket form
- White
- Microcellular PTFE
- Conforms to FDA regulations and ABS specification
- Min. Temperature: -450°F / -268°C
- Max. Temperature: 500°F / 260°C
- Max. Pressure: 1200 PSI / 55 bar
- Maximum PxT 1/16: 350,000 °F x PSIG / 12,000 bar x °C
- Maximum PxT 1/8: 250,000 °F x PSIG / 8,600 bar x °C
Applications
- Strong caustics
- Strong acids
- Hydrocarbons
- Chlorine
- Cryogenics
- Glass-lined equipment†
- Low bolt load applications*
*For flat face flanges, a minimum compressive stress of 1,500 psi is recommended on the contacted gasket area for 150 psig liquid service. Consult with Khong Lieng to confirm that adequate compressive stress is available.
† When sealing uneven flanges, gasket must be four times thicker than maximum gap between flanges.
