A medium to firm gasket based mainly on nitrile rubber and designed for use in transformers and electrical switchgear. It is suitable for use with all commonly used transformer fluids - mineral oil, Midel and silicone fluids. This material is able to withstand a higher degree of compression than other grades, which enables it efficiently to seal transformer lids (and other equipment) where flanges suiffer a degree of non-parallelism. Moreover, its ability to withstand vapour phase drying removes the need for test gaskets.

Recommended maximum system pressure is 0.5Mpa/5bar.  May be used for higher pressures in consultation with the Tiflex Support Team.

 Prime features

• Robust grade for heavy electrical duties.
• Greater resistant to over-compression.
• Suitable for out-of-parallel flanges,on transformer lids.
• Resists all commonly used transformer fluids.
• Withstands vapour phase drying.
• +110°C maximum recommended operating temperature in liquids - tolerates intermittent excursions to +120°C.Retains flexibility down to -20°C. 

Fluid compatibilities
Suitable for use with air, water, alcohols, fuel and

diesel oils, mineral and synthetic lubricating oils, mineral hydraulic fluids, and water/glycol, plus ASTM oil 1, IRM903 oil, ASTM Fuel A, BS148 Transformer Oil.