Flange Insulation Gasket Sets

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

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Product 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+

material 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.



With professional flange insulation gasket sets factory, KAXITE is one of the leading China Metallic Gaskets manufacturers and suppliers.

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