Insulating sets are essentially used for pipeline flange corrosion
protection, where a seal is required between dissimilar flange materials.
The use of dissimilar metallic flanges with a conductive gasket material
accompanied with a suitable electrolyte may set up a galvanic cell which
will corrode the anodic metal. Insulating sets are also used to
electrically isolate flange joints, preventing the flow of electrostatic
charge along pipelines.
There are three standard Types of insulating sets available to suit raised
face, flat face, and ring grooved flanges, as illustrated below.
Goodrich Insulation Gaskets For Type "F" Raised Face Flanges In this type, the central gasket is designed to be located inside the
flange bolt circle and sits fully on the raised face porting of the
flange. This type of gaskets will be supplied in all the materials shown
in Table
Goodrich Insulation Gaskets For Type "E" For Full Face Flanges
In this type, the central gasket has its outside diameter as equal to that
of flange outside diameter and precision cut bolt holes. This design helps
easy alignment of the gaskets during installation. Type "E" gaskets are
available in Neoprene faced reinforced phenolic material or other
materials in Table.
Goodrich Insulation Gaskets For Type "D" For Ring Joint Gaskets In this type the gaskets available in fabric reinforced Phenolic.
Available in basic "Oval & Octagonal" type. This type has the contact
faces with oval shape. It provides a high reliability seal. These gaskets
comply with ASME B - 16.20.
Since all properties, specifications and application parameters shown
throughout this product information are approximate and may be mutually
influenced, your specific application should not be undertaken without
independent study and evaluation for suitability. All technical data and
advice given is based on experiences Goodrich Gasket Private Limited
has made so far. Failure to select proper sealing products can result in
damage and/or personal injury. Properties, specifications and application
parameters are subject to change without notice. Goodrich Gasket Private
Limited does not undertake any liability of any kind whatsoever.
Insulating sets are essentially used for pipeline flange corrosion
protection, where a seal is required between dissimilar flange materials.
The use of dissimilar metallic flanges with a conductive gasket material
accompanied with a suitable electrolyte may set up a galvanic cell which
will corrode the anodic metal. Insulating sets are also used to
electrically isolate flange joints, preventing the flow of electrostatic
charge along pipelines.