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Flange Isolation Gasket Kits

FLANGE ISOLATION GASKET KITS FOR CORROSION CONTROL

Sealing and Isolation Solutions for Flanged Connections

Eliminating Metal-to-Metal Contact and Providing Electrical Isolation for Cathodic Protection

Designed to prevent galvanic corrosion and extend asset life, each flange isolation gasket kit helps maintain proper sealing integrity while ensuring reliable electrical isolation in critical pipeline and process systems.

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Flange Isolation Gasket Kits for Pipeline Corrosion Protection

The Step-Ko Products Flange Isolation Gasket Kits are designed to maintain the integrity and reliability of the pipeline and piping system through safety and corrosion protection. Each flange isolation gasket kit provides both an effective seal and reliable electrical isolation of flanges. By eliminating metal to metal contact, static current is halted to prevent corrosion and aid in the Cathodic Protection of the piping system.

Constructed of high-quality materials that have a high dielectric constant and low water absorption, our kits are available in various configurations to meet every possible need.

We offer Flange Isolation Gasket Kits in all sizes, ranging from 1/2” to 144”, in all ANSI and API classes. Custom and special sizes are also available upon request, whether you require a standard flange gasket kit or complete flange bolt insulation kits for full electrical separation.

At Step-Ko, we understand the importance of corrosion prevention in maintaining pipeline integrity, and we have designed our Flange Isolation Gasket Kits to ensure the reliability and safety of pipelines and piping systems.

Pipeline corrosion is most commonly a result of pipeline leakage or electrical currents between flanges at the connection’s seal. Gaskets are essential to preventing both of these problems on any pipeline, and Step-Ko’s Flange Isolation Gasket Kits work to prevent corrosion by addressing both causes.

They are constructed of high-quality materials that have low water absorption to prevent leakage and ensure a proper seal. They are also made of a high dielectric constant to assist in the electrical isolation of the flanges, eliminating the static current that is caused by metal-to-metal contact, aiding in the cathodic protection of the piping system.

Designing a high-quality product is only a part of our job. Delivering it to our customers as quickly as possible is just as crucial. We understand the frustration that comes with waiting for the essential parts required to do a job. With inventory in warehouses across the country, we can ensure customers receive their Flange Isolation Gasket Kits when they need them.

Industries We Serve

As a leading provider of corrosion protection solutions, we have always maintained that our job is to help our customers protect their pipes, no matter the industry. We work with customers in the oil and gas, chemical, wastewater, and other industries that depend on pipelines to move their resources. We work side-by-side with our customers to ensure they get the products they need.

To that end, our kits are available in various configurations and sizes, ranging from ½” to 144”, in all ANSI and API classes. Each flange isolation kit contains gaskets, sleeves, and washers. We can also provide customized Flange Isolation Gasket Kits to suit our customers’ special sizes and needs.

Why Choose Step-Ko Products

Here at Step-Ko, we value our customers and work hard to provide exceptional customer service through our dedicated and accessible staff, affordable prices, and quick delivery times. And we are committed to supporting our customers whenever, wherever they need us.

Don’t wait until it’s too late. Make Step-Ko’s Flange Isolation Gasket Kits an essential part of your flanged pipeline connections.

Flange Gasket Kit Types

Type D

Type D gaskets are designed to fit into the ring groove of RTJ (ring type joint) flanges. We also offer BX gaskets. Both are available in grade C phenolic and are commonly supplied as part of a flange isolation gasket kit for sealing and electrical isolation applications.

Type E

This style kit contains a full face gasket that has the same outside diameter as the flanges. This style gasket will prevent foreign material from collecting and creating a bridge, thus shortening the cathodic isolation. Type E gaskets are available in phenolic, neoprene-faced phenolic, and high-temperature materials.

Type F

This gasket will fit only the raised face surface of the flanges. The outside diameter of the gasket is slightly less than the inside diameter of the bolt circle. This gasket can be used on both raised-face and full-face flanges. It is recommended that the flanges be wrapped with Flange Band Protectors to prevent foreign material from collecting and creating a bridge, thus shortening the isolation. Type F gaskets are available in the same materials as Type E.

Warrior

This gasket has a sealing element on each side and is available in both Type E and Type F styles. The sealing element materials are nitrile, Viton, or Teflon. Gasket materials available are phenolic and G-10.

Speak With an Isolation Specialist

Industrial Corrosion Control Built Around a Proven flange isolation kit

A properly engineered flange isolation kit is essential for preventing galvanic corrosion and maintaining pipeline integrity in critical systems. By eliminating metal to metal contact between flanges, it stops electrical current transfer that can weaken connections over time. Each configuration is designed to provide dependable sealing performance while preserving dielectric isolation under pressure and temperature fluctuations. A complete flange isolation gasket kit includes precision gaskets, sleeves, and insulating washers that work together to form a secure barrier.

Why Every System Benefits from a Precision-Engineered Insulation Flange Kit

An advanced insulation flange kit ensures controlled electrical separation at flanged joints without sacrificing sealing integrity. These kits are manufactured using materials with high dielectric strength and low water absorption to perform consistently in demanding environments. In applications where corrosion risks are elevated, an isolating flange kit becomes a vital component of a long-term protection strategy. Proper isolation supports safety, minimizes maintenance, and strengthens overall system performance. When correctly specified, these kits create a stable barrier that prevents stray current interference across the connection.

Strengthening Infrastructure with flange isolation kits cathodic protection

Effective flange isolation kits cathodic protection solutions are designed to interrupt electrical continuity while maintaining structural and sealing performance. Isolation at the flange level ensures cathodic systems operate efficiently and without interference.

Prevent conductive bridging between mating flanges.
Support cathodic protection current control
Reduce the risk of galvanic corrosion in multi-metal systems
Maintain seal integrity under operational stress
Improve long-term pipeline reliability

By integrating isolation kits into corrosion control programs, operators gain measurable protection and consistent system performance.

Long-Term Performance with a High-Quality insulating gasket for pipeline Applications

A dependable insulating gasket for pipeline systems must withstand mechanical compression, pressure cycles, and environmental exposure. Engineered from materials that balance strength and dielectric resistance, these gaskets maintain isolation while delivering secure sealing. They help prevent leakage caused by improper electrical bridging and minimize corrosion at flange faces. Designed for compatibility with ANSI and API classes, insulating gaskets provide consistent results across transmission and processing lines. Their performance contributes directly to safer, more efficient operations.

Your Reliable flange isolation kit distributor for Critical Projects

As a trusted flange isolation kit distributor, product availability and technical accuracy are just as important as manufacturing quality. Timely delivery ensures projects remain on schedule and systems remain protected.

Inventory coverage from small diameters to large industrial sizes
ANSI and API class compatibility
Custom configurations available upon request
Technical support for proper kit selection
Fast shipment from stocked warehouse locations

Dependable distribution means customers receive the right configuration without unnecessary delay.

Advanced Protection Using isolation kits for dissimilar metals

The use of isolation kits for dissimilar metals is essential where carbon steel, stainless steel, or other materials connect at flanged joints. Without proper separation, galvanic reactions can accelerate corrosion and weaken structural integrity. These kits establish a dielectric barrier that prevents electrical flow while preserving sealing performance. Designed for use in high-risk environments, they enhance system durability and reduce maintenance cycles. Strategic isolation between differing metals strengthens long-term corrosion prevention efforts.

Engineered Performance in Every flange gasket kit

Every flange gasket kit must deliver both sealing integrity and electrical reliability under demanding conditions. Step-Ko Products manufactures high-performance isolation solutions designed to meet strict industry requirements. Through precise material selection and controlled production standards, each kit supports corrosion control initiatives across multiple sectors. From standard applications to specialized project needs, consistent quality remains the foundation of every product supplied.

FAQs

1. What is the purpose of installing isolation components at a flange connection?

Isolation components are installed to prevent electrical current from passing between joined flanges. This helps reduce galvanic corrosion, protects piping systems, and supports overall asset longevity in industrial environments.

2. How do isolation assemblies support cathodic protection systems?

They interrupt the electrical continuity at flange joints, ensuring cathodic protection current flows only where intended. This improves corrosion control efficiency and prevents unintended electrical bridging across the system.

3. What materials are commonly used in flange isolation assemblies?

Most assemblies use high-dielectric materials such as phenolic or G-10 for gaskets, along with non-conductive sleeves and washers. These materials provide electrical separation while maintaining sealing strength under pressure.

4. When are isolation systems required for dissimilar metal connections?

They are recommended whenever two different metals are connected at a flange joint. Without proper separation, galvanic reactions can accelerate corrosion and weaken the integrity of the connection.

5. What components are typically included in a complete isolation assembly?

A standard configuration usually includes a gasket, insulating sleeves for the bolts, and insulating washers. Together, these components prevent metal to metal contact while maintaining a tight seal.

6. How do isolation components prevent bolt-related corrosion?

Non-conductive sleeves and washers prevent direct contact between bolts and flanges. This eliminates stray current paths that can cause localized corrosion at bolted connections.

7. How do you select the correct isolation configuration for a pipeline system?

Selection depends on flange size, pressure class, operating temperature, and application requirements. Consulting technical specifications ensures the correct materials and dimensions are chosen for long-term performance.