Sigma® 500 PTFE Gasket
Sigma® 500 Sheet Material (PTFE)
Sigma® 500 is a high performance biaxially orientated sheet sealing material containing PTFE and hollow glass microspheres. Sigma 500 is biaxially orientated PTFE containing hollow glass microspheres.
SIGMA® 500 is capable of creating a seal across a wide range of gasket stress. This makes the product suitable not just for use in standard metallic flanged connections but also in load compromised bolted connections; such as those applications involving glass lined, plastic and thin or distorted metal flanges.
Sigma® 500 material is inherently clean, making it suitable for use in industries where product contamination may be of concern such as food, beverage and pharmaceuticals. Suitable for sealing most chemicals across the whole pH range (0-14) with the exception of molten alkali metals, fluorine gas, hydrogen fluoride or materials which may generate these.
- Recommended temperature range: -418F to 500F
- Recommended max pressure range: full vacuum to 1230psi
Vacuum to 85 bar (1230 psi)Color: Blue - Enhanced compressibility for low bolt loads
- Improved flexibility over conventional calendered and graphite sheets
- Moderate concentrations of acids & caustics, chlorine and hydrogen peroxide
- Can be used for all concentrations of sulfuric acid
