Sigma 511 is a high performance biaxally orientated sheet sealing material containing PTFE with silica filler. Standard compressibility. Can be used for strong acids (except hydrofluoric) to general chemicals. Can be used for all concentrations of sulfuric acid. Not suitable for molten alkali metals, fluorine gas or hydrogen fluoride.
**PLEASE NOTE ALL GASKETS LISTED ARE TO SUIT STANDARD FLANGES OF THE SIZE STATED. IF YOU WISH TO CONFIRM ANY DIMENSIONS BEFORE ORDERING OR PLACE AN ENQUIRY FOR A NON STANDARD GASKET, PLEASE CONTACT US**
Approval: BAM for Oxygen, EC1935, FDA, FDA Compliant, TA Luft, USP Plastic, WRAS
Flange Face: Raised & Flat Face
Maximum Temperature: 260°C / 500°F
Minimum Temperature: -200°C / -328°F
Pressure: 51 Bars / 739.69 PSI
Pressure Class: 150 & 300
Pressure Rating PN: PN40
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