A flange is typically insulated for cathodic protection reasons. Insulating the flange requires that no metal to metal contact occurs between the two flanges, this includes between the bolts. Plastic sleeves and washers are used on the bolts that prevents this contact.
Isolating products are used to guarantee the safe flow of fluids passing through pipeline transmission, distribution and process piping systems.
Flange and Bolt Insulation products are the most widely used form of controlling losses due to corrosion. They can be used to control stray electric currents in piping at oil, gas, water, refinery, and chemical plants, to increase the effectiveness of cathodic protection systems and confine or eliminate electrolytic corrosion.
Industrial Gaskets can supply various sizes and types of insulating gaskets and complete gasket kits to suit any pressure or product requirements They are available in reinforced phenolic and other materials. Each kit is supplied with washers, sleeves and a gasket in a wide variety of materials including Phenolic, Minlon and Mylar. They are available for all flange sizes, types, pressure ratings.
Flange Insulation is designed to combat the effects of corrosion often found in flanged pipe system. Galvanic corrosion between dissimilar metal flanges, flange insulation associated with cathodic protection of underground piping are other examples where Flange Insulation can be put to effective use.
Industrial Gaskets Flange Insulation -
- Designed to minimise electro-chemical erosion
- Used to electrically isolate sections of pipework
- Comprise of materials with high dielectric strength
- Easily identified with each kit labelled with flange size & rating
- Supplied as standard with “Top Hats” for bolt isolation and ease of instalment, gasket and steel washers
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