Flange Insulation Kits for Pipework Protection

Flange Insulation Kits
Flange insulation kits are essential for protecting flanged joints in piping systems. At Henry Gallacher, we have extensive experience in flange insulation solutions and stock a wide range of high-quality components to support a range of industries and applications.

Why Use Flange Insulation Kits?

Flange insulation kits protect flanged joints and keep your piping systems running smoothly. They help prevent common issues while making maintenance easier and safer. Key benefits include:

  • Reduce Electrical Arcing
    Minimises the risk of sparking between flanges, particularly in systems that carry conductive fluids or are prone to static buildup.

  • Prevent Galvanic Corrosion
    Helps stop dissimilar metals, such as aluminium and steel, from contacting and reacting when in the presence of moisture or electrolytes. This protects flanged joints from corrosion and weakening.

  • Improve Safety
    Helps maintain a stable, reliable system for both personnel and equipment.

  • Lower Maintenance Costs
    Reduces the need for repairs and unplanned downtime.

What's Included in a Set?

  • Insulating Gasket
    Provides a dependable, leak-free seal between the flanges.

  • Insulating Bolt Sleeves
    Prevent direct metal-to-metal contact by isolating the bolts from the flange assembly, helping reduce the risk of galvanic corrosion.

  • Insulating Washers
    Maintains electrical isolation on both sides of the joint to ensure reliable insulation performance across the entire connection.

  • Steel Washers
    Helps evenly distribute the load and maintain steady, secure joint compression.

Who Uses Flange Insulation Kits?

Flange insulation kits are widely used in many industrial sectors that use piping systems with flanged joints. They are most commonly used in applications that handle fluids and gases, including:
  • Chemical processing
  • Water and wastewater treatment
  • Power generation
  • Petrochemical
  • Food processing
  • General manufacturing

What's Available?

We offer a standard range of Type D, Type E and Type F, featuring Neoprene Phenolic gasket, Mylar (polyester) sleeves, Phenolic washers and MSZP washers.

Please contact us to enquire about all our sizing options and materials to suit your requirements.

Standard Flange Insulation Kits

Type D Flange Insulation Kit
Type D (RJT)

Ring Joint Type (RJT) flange insulation kits feature an insulating oval ring that fits into a standard RJT flange groove. The sets also include insulating washers and bolt sleeves.

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Type E Flange Insulation Kit
Type E (Full-Face)

Featuring a full-face gasket that aligns with the flange bolt holes, along with insulating washers and bolt sleeves. Suitable for flat-face and raised-face flanges.

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Type F Flange Insulation Kit
Type F (IBC)

Type F sets include an insulating IBC gasket that fits inside the inner circle bolt holes of the flange. The kits also contain insulating washers and bolt sleeves.

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