Corrugated Vulcanized Fiber - CVF
Timco´s Corrugated Vulcanized Fiber is used for electrical insulation applications. It is a dense material
having high strength imparted by its retained fibrous structure. This material is free from foreign matter that
might impair electrical properties. It is used in distribution transformers as a duct through which cooling oil
flows. The number of corrugations needed per transformer is a function of the rating of the transformer and the
amount of oil flow needed to keep the operating temperature below failure levels.
Timco´s Square CVF has corrugations perpendicular to the grain. It possesses superior mechanical strength and maintains the height of the corrugations under pressure, allowing the proper amount of cooling oil to flow freely. Tests have shown Timco´s Square Corrugated Fiber is compatible with transformer oil and after aging, gains compressive strength.
Sinusoidal (rounded) or sine-wave configurations tend to deflect as the load is increased, thus reducing the height of the corrugation and the amount of cooling oil that can be passed through.