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Products

Flange Insulation Gasket Sets

Flange Insulation Gsket Sets are usd to solve the sealing and insulating problems of flanges, and to control losses due to corrosion and leakage of pipelines. They are widely used to seal flanges and control stray electric currents in piping at oil, gas, water, refinery, and chemical plants, to increase the effectiveness of cathodic protection systems.


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Description

Flange Insulation Gasket Sets

Flange Insulation Gasket Sets

Product name: Flange Insulation Gasket Sets

Item: KXT-110

Details:

Flange Insulation Gsket Sets are usd to solve the sealing and insulating problems of flanges, and to control losses due to corrosion and leakage of pipelines. They are widely used to seal flanges and 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 Insulating Gasket Sets

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

Insulation 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 Type 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 (RTJ Gaskets)
To fit RTJ flanges. They can be produced according to ASME and API flange standard.


Sealing Gasket Physical Properties

Property
Plain
Phenolic
Neo-faced
Phenolic
Silicone
Glass
G-7*
Epoxy
Glass
G-10
Epoxy
Glass
G-11
Dielectric strengths,
Volts/mil
500
500
350-400
550
550
Compressive strength,
psi
25,000
25,000
40,000
50,000
50,000+
Water absorption, %
1.6
1.6
0.07
0.10
0.10
Insulating Resistance,
Meg Ohms
40,000
40,000
2,500
200,000
200,000
Flexural strength, psi
22,500
22,500
27,000
45,000
43,000
Operating temp, oF
-65 to +220
-65 to +175
-292 to +450
-292 to +280
-292 to +349
Operating temp, oC
-54 to +104
-54 to +79
-180 to +232
-180 to +138
-180 to +176


* = G-7 material should not be used with hydrocarbons, not even trace amounts.


Seal Element Temperature Limits

Nitrile
Viton
Teflon
Neoprene
EPDM
-65 to +250oF
-20 to +350oF
-292 to +450oF
-40 to +248oF
-65 to +248oF
-54 to +121oC
-29 to +177oC
-180 to +232oC
-40 to +120oC
-54 to +120oC

Consider both retainer and seal element temperature limits togetherfor KXT-110 and KXT-120 Sealing Gaskets.


Flange Insulation Gasket Set is becoming more and more important in the industry of oil&gas, petroleum, chemical, refinery.


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