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Stainless Steel Insulation Gasket Manufacturers, Suppliers, Importers, Dealers in Mumbai India

Stainless Steel Insulation Gasket

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Stainless Steel Insulation Gasket Kits play a vital role in preventing galvanic corrosion, controlling stray electrical currents, and ensuring the safe operation of piping systems across multiple industries. These kits are designed to create a positive seal between flanges while providing electrical insulation. They are widely used in oil and gas pipelines, refineries, petrochemical plants, water treatment facilities, marine systems, and power generation units where electrical isolation is crucial for safety and operational reliability.

Insulation gasket kits are engineered to offer excellent sealing performance, superior electrical isolation, and reliable protection against corrosion. They are commonly installed between flanges of dissimilar metals to prevent electrolytic corrosion. Additionally, they are designed to handle high pressure, wide temperature ranges, and aggressive chemical environments, making them indispensable for critical applications in corrosive atmospheres.

Importance of Stainless Steel in Insulation Gasket Kits

The use of stainless steel (SS) in insulation gasket kits enhances durability, corrosion resistance, and mechanical strength. Stainless steel provides the structural backbone for metallic gaskets, ensuring consistent performance under high-pressure and high-temperature operations. Stainless steel gaskets are often combined with insulating sleeves, washers, and high-dielectric-strength sealing materials like PTFE, phenolic, epoxy glass (G10, G11), and mica to create an effective barrier against electrical conductivity.

Components of an Insulation Gasket Kit

A typical stainless steel insulation gasket kit consists of:

  • Gasket: Designed for perfect sealing and electrical isolation. Available in Type E (Full Face), Type F (Ring Type), and Type D (RTJ – Ring Type Joint).
  • Insulating Sleeves: Placed over bolts to prevent metal-to-metal contact.
  • Insulating Washers: Prevent electrical bridging between bolt head/nut and flange.
  • Steel Washers: Provide strength and distribute bolt load evenly.

Each component plays a critical role in maintaining flange integrity, electrical isolation, and long-term performance.

Types of Stainless Steel Insulation Gasket Kits

Type E Insulation Gasket Kits (Full Face)

Cover the entire flange face and are suitable for flat face and raised face flanges.

Provide complete protection against electrical leakage and corrosion.

Type F Insulation Gasket Kits (Ring Type)

Fit within the bolt circle, making installation easy.

Ideal for raised face flanges in oil, gas, and petrochemical industries.

Type D Insulation Gasket Kits (RTJ)

Designed for Ring Type Joint flanges.

Provide high-pressure sealing performance and electrical insulation.

High-Temperature Insulation Gasket Kits

Designed with SS316, mica, and high-strength insulating materials.

Suitable for extreme temperature applications in refineries and chemical plants.

Materials and Grades

  • Stainless Steel Grades: SS304, SS304L, SS316, SS316L, SS321, SS347
  • Insulation Materials: PTFE, phenolic, epoxy glass (G10, G11), neoprene, mica, and high-temperature polymers
  • Sleeves and Washers:
  • Insulating Sleeves: Polyethylene, phenolic, PTFE, nylon, G10/G11 epoxy
  • Insulating Washers: Phenolic, epoxy glass, PTFE, neoprene
  • Metallic Back-Up Washers: Carbon steel, stainless steel (SS304, SS316)

Applications of Stainless Steel Insulation Gasket Kits

  • Oil & Gas Pipelines: Prevents galvanic corrosion between dissimilar metal flanges.
  • Marine Industry: Protects systems exposed to saltwater and harsh marine environments.
  • Power Generation: Used in steam lines, condensers, and cooling water systems.
  • Petrochemical & Refinery Plants: Provide safe isolation in chemical and hydrocarbon processing units.
  • Water Treatment Plants: Ensure leak-proof and corrosion-resistant operations.