GORE™ Universal Pipe Gasket (Style 800) Technical Information

Material: 100% expanded PTFE
Temperature range: -450°F to 600°F (-268°C to 315° C)
Chemical resistance: Resistant to all media in the 0-14 pH range, except molten alkali metals and elemental fluorine, particularly at elevated temperatures and pressures
operating pressure: Vacuum to 3000 psig (200 bar)
Safety: Complies with FDA 21 CFR 177.1550 (PTFE) food requirements
Compressibility: ASTM F-36 57 percent
Sealability: Y value 1500 psi, m factor 2.4

Bolt Load Retention:

The Bolt Load Retention test is a method for determining retained gasket stress after a specified dwell time at elevated temperatures. The percent bolt load retention (percent BLR) is calculated by dividing the final stress after cool down by the initial gasket stress times 100 percent.

Test Conditions:

Temperature: 100°C (212°F)
Dwell time at temperature: eight hours
Initial gasket stress: 8000 psi
Nominal gasket thickness: 1/8 inch
Gasket size: NPS 2 Class 150 lb. ring