Flange Insulation Kits & Components

What is a flange insulation kit?

Flange Insulation Kits are essential components used in pipeline systems to provide electrical isolation and corrosion protection between flanged connections.  They are designed to prevent galvanic corrosion, electrical arcing and current leakage which are common issues that can lead to costly maintenance, reduced system efficiency and equipment failure.  Typically installed between flanges made from dissimilar metals, insulation kits ensure long-term reliability and safety in a wide range of environments, from oil and gas pipelines to water treatment and marine systems.

Browse our Flange Insulation Kits below

Benefits of using Flange Insulation Kits

Flange Insulation Kits play a crucial role in protecting pipeline systems by preventing corrosion, enhancing safety and extending overall service life.  One of their primary functions is to prevent galvanic corrosion, which occurs when dissimilar metals come into contact in the presence of an electrolyte such as water, moisture, or salt.  By isolating the flanges and eliminating metal-to-metal contact these kits effectively stop the electrochemical reactions that lead to corrosion damage.

In addition to corrosion protection, flange insulation kits provide excellent electrical isolation as they prevent stray currents and potential differences from traveling through the pipeline.  This is especially important for systems near power lines, railways or in facilities that use cathodic protection.  By isolating sections of the pipeline, the kits also improve cathodic protection efficiency, reducing current leakage and ensuring the system operates more effectively.

Another key benefit is the prevention of electrical arcing between flanges. Voltage differences or static charge buildup can lead to arcing, which poses safety and reliability risks.  The insulating materials within the kit eliminate this hazard, helping maintain a stable and secure pipeline environment.

Flange insulation kits are also highly effective in harsh operating conditions. They offer an additional barrier against moisture, saltwater and chemical exposure, making them ideal for offshore, marine and industrial applications. By preventing corrosion and electrical faults, these kits help reduce maintenance costs, minimise downtime and extend the operational lifespan of equipment.

Overall, flange insulation kits contribute to a safer, more reliable and longer lasting pipeline system.  Their combination of corrosion prevention, electrical isolation and environmental protection makes them an essential component for any high-performance piping network.

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Standard kit contents:  one gasket, one sleeve per bolt hole, two insulating washers per bolt hole, two steel backup washers per bolt hole.

Type F – IBC Gasket  |  Type E – Full Face Gasket  |  Type D – Phenolic RTJ Gasket