Flange Isolation Gasket Kits

Sealing and Isolation Solutions for Flanged Connections

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

The Step-Ko Products Flange Isolation Gasket Kits are designed to maintain the integrity and reliability of the pipeline and piping system thorough safety and corrosion protection. Flange Isolation Gasket Kits provide 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 Flange Isolation Gasket 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.

Flange Gasket Kit Types

flange isolation gasket kit type dType 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 CR phenolic.

flange isolation gasket kit type eType E

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

flange isolation gasket kit type fType 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 are wrapped with Flange Band Protectors to prevent foreign material from collecting and creating a bridge, thus shorting out the isolation. Type F gaskets are available in same material as Type E.

flange isolation gasket kit warriorWarrior

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.

flange isolation gasket kit specification sheet