Flange Insulating Gasket Kits

Flange Insulation Kits used for controlling losses due to corrosion. They can be used to control stray electric currents in piping at oil, gas, water, refinery, and chemical plants, to increase the effectiveness of cathodic protection systems.

Application of Flange Insulation kits

To limit the extent and cost of cathodic protection current to only those pipes that need to be protected from the main cathodic protection system
To electrically "split up" long pipelines into distinctive cathodic protection systems
To isolate a pipeline to ensure that cathodic protection or stray electricity currents do not cause increased corrosion, or cause a hazard
To isolate piping systems where dissimilar metals are present
To eliminate static loading charge transfer in discharge or loading operations at oil storage terminals

Gasket Type:

Type E (Full Face Gasket)

This gasket kit provides complete protection of both flange faces. The gasket has same outside diameter of flanges. This feature will prevent collection of foreign matter between the flange faces to ensure complete cathodic isolation.

Type F (Ring Gasket)

This gasket is manufactured to fit only the raised face surface of the flanges. Outside diameter of the gasket is designed to be slightly less than the inside diameter of the bolt circle. It is recommended that the flanges be wrapped to prevent foreign material from "shorting out" the flanges.

Type D (Gaskets)

To fit RTJ flanges, we offer CE and LE grade phenolic and glass filled Teflon.

Specifications

Gaskets

Material	Dielectric Strength	Water Absorption	Compressive Strength	Maximum Temperature
Plain Faced Phenolic	> 10 KV/mm	0.6%	51.5 MPa	107 ° C
Neoprene Faced Phenolic	> 10 KV/mm	0.6%	51.5 MPa	79 ° C

Note: Special & high temperature materials are available upon request.

Sleeves

Material	Dielectric Strength	Water Absorption	Maximum Temperature
Polyethylene	25 KV/mm	0.01	41 ° C
Phenolic	25 KV/mm	1.1	107 ° C
Teflon	38 KV/mm	0	232 ° C

Note: Special & high temperature materials are available upon request.

Material	Dielectric Strength	Water Absorption	Compressive Strength	Maximum Temperature
Phenolic	400 VPM	0.77%	103 MPa	107 ° C

Packaging And Order Specification

Each Advance flange insulation gasket kit is packaged individually in durable corrugated boxes. Insulating sleeves and washers are packaged separately and are cushioned within the box to protect them from damage during shipment. Each set is clearly tagged with flange size, pressure rating.

Ordering Specifications

To Order Please Specify the following

Specify flange size and pressure rating
Specify gasket type: E or F
Specify single washer or double washer set
Specify sleeve material
Consult factory for specials