Insulation Gasket

Flange Insulation Gaskets for High Pressure asian sealing

Welcome to Asian Sealing Products, where we take pride in delivering top-tier insulation gaskets for all your industrial needs. Our insulation gaskets are more than just a sealing solution; they’re your safeguard against galvanic corrosion, electrolytic action, and pesky fluid leaks in various industrial applications.

Flange Insulation Gaskets: The Guardians of Industrial Efficiency

  • Versatile Applications: Insulation gaskets are incredibly versatile, making them perfect for various applications, including pipeline systems, flange connections, heat exchangers, pressure vessels, pumps, and valves. We’ve engineered our insulation gaskets to meet the unique sealing requirements of different industries, ensuring your peace of mind.
  • Excellent Temperature Control:
    In the world of industry, temperature control is paramount. Flange insulation gaskets act as your temperature guardians, providing exceptional thermal resistance. Whether your operations run scorching hot or freezing cold, our gaskets keep things under control.
  • Corrosion Protection: Corrosion is a common concern in industrial settings. Flange insulation gasket kits create a reliable barrier between dissimilar metals and materials, effectively preventing galvanic corrosion. This not only extends the lifespan of your equipment but also reduces maintenance costs, giving you long-term peace of mind.
  • Leak Prevention: Insulation gaskets are designed with leak prevention in mind, ensuring the safety and integrity of your operations. This feature is especially critical in applications where even a tiny leak can lead to environmental or safety hazards.

Types and Parts of Flange Insulating Gaskets

Flanges often present sealing challenges that must be addressed to prevent leaks and the damaging effects of stray currents on metals. At Asian Sealing Products, we provide a comprehensive range of solutions that align with industry standards, specifically designed to address flange sealing problems and protect the integrity of your pipelines.

TYPE E (FULL FACE TYPE GASKET) Our Type E gaskets, featuring a complete face type design, offer the same outside diameter as the flange and precision-cut bolt holes. This thoughtful design simplifies gasket alignment during installation, preventing interference from foreign materials. Type E gaskets come in plain face or with the added protection of neoprene-faced phenolic.

TYPE F (RAISED FACE TYPE GASKET) Type F gaskets are tailored to fit raised face flanges perfectly. Unlike the Type E gaskets, they lack bolt holes, with the inside diameter of the bolt hole circle slightly smaller than the outside diameter of the gasket. This design ensures automatic positioning of the gasket for a precise fit. Type F gaskets also come in various materials and have a standard thickness of 1/8″.

Why Choose Asian Sealing Products?

  • Expertise and Experience: With years of experience in sealing, we’ve developed a deep understanding of various industries and their unique challenges. We’re well-equipped to provide customized insulation gasket solutions.
  • Superior Material Selection: We provide a wide selection of top-notch gasket materials. This includes options like PTFE (Polytetrafluoroethylene), compressed fiber, ceramic fiber, non-asbestos, etc, of high quality built to withstand industrial conditions.
  • Quality Assurance: Our commitment to quality is unwavering. Every insulation gasket we produce undergoes rigorous quality control checks to meet the highest industry standards.
  • Customization: We understand that every project is unique. That’s why we offer customization options, allowing you to tailor our products to your needs, from material selection to gasket dimensions.

When you partner with Asian Sealing Products for your insulation gasket needs, you choose a dedicated ally in your pursuit of success. Contact us today, and let’s ensure the reliability and safety of your industrial operations together.

Product Details
  • Provides complete protection for both flange faces
  • Comes with the same outside diameter of the flanges. Hence, the foreign material collection between the flange faces is prevented
  • Ensures complete cathodic isolation
  • The E gaskets are available in Plain faced Phenolic, Neoprene faced Phenolic and high temperature material like G-10
  • Designed to fit only onto the raised face surface of the flanges
  • Outside diameter of the gasket is slightly lesser than the inside diameter of bolt circle
  • For best results, the flanges must be wrapped with Flange Band Protectors. So foreign materials are prevented from collecting and creating a bridge, thus shorting out the isolation
  • Available in same material as Type E
  • Designed to fit into the ring groove of RTJ flanges
  • Available in Phenolic and G10 material types
  • We use a machined glass-reinforced epoxy (GRE) resin with an O-ring or spring energised seal to produce this insulation set
  • These gaskets can be used for flange ratings from class 150 to 600
  • Improvises compressive strength over conventional insulation sets
  • Provides greater resistance to over compression and cracking
  • Highly reliable for both insulating and general sealing purposes in critical services
  • These gaskets have a proven track record of integrity in aggressive sealing situations
  • Suitable in all services up to and including ANSI 2500# and API 15,000# classes
  • Metal Core with G10/G11 gaskets consists of a PTFE (Teflon) spring-energized face seal, or an elastomeric o-ring
  • Accommodated in an insulating laminate that is permanently bonded to a high-strength metal gasket core


A flange gasket is a mechanical seal used to fill the space between two flanges in order to prevent leakage from or into the joined objects while under compression. Flanges are components used to connect pipes, valves, pumps, and other equipment in various industries such as oil and gas, chemical processing, water treatment, and more. Flange connections are widely used because they provide a secure and leak-resistant joint between two separate components.

Flange insulation gasket kits are widely used in industries such as oil and gas, petrochemicals, chemical processing, power generation, water treatment, and offshore installations.

A flange insulation kit functions by forming a barrier between the flange faces. It separates the flange components with insulating gaskets and sleeves, providing both physical and electrical insulation. 

The manufacturer usually specifies the thickness, but it can be customized to meet the specific needs of the project. Insulating gasket thicknesses can range from 1/16 inch (1.6 mm) to 1/4 inch (6.4 mm) or even thicker in some cases.

F, E, D, and O gasket isolation kits differ in terms of their design and construction- the geometry, materials, and thickness of the insulating components. Each type is designed to meet specific industry standards and requirements, with varying levels of electrical insulation and corrosion resistance.

The choice of gasket isolation kit depends on factors such as flange size, pressure rating, and the specific requirements of the application. It is advisable to consult with the manufacturer or supplier to determine the most suitable kit for your specific needs.