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Home > Products > Flange Insulation Gasket Kit

Flange Insulation Gasket Kit

Product Description

Flange Insulation Gasket Kits 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 Insulation Gasket 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

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 +350
Operating temp, ºC
-54 to +104
-54 to +79
-180 to +232
-180 to +138
-180 to +177
 
* = G-7 material should not be used with hydrocarbons, not even trace amounts.
 
Seal Element Temperature Limits
Nitrile
Viton
Teflon
Neoprene
EPDM
-65 to +250°F
-20 to +350°F
-292 to +450°F
-40 to +175°F
-65 to +248°F
-54 to +121°C
-29 to +177°C
-180 to +232°C
-40 to +79°C
-54 to +120°C