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The types of flange insulation gasket

The types of flange insulation gasket

flange-insulation-gasket-kits

Flange insulation kits are the most widely used form of controlling losses due to corrosion.They can be used to control stray eletric currents in piping at oil,gas,water,refinery,and chemical plants,to increase the effectiveness of cathodic protection systems and confine or eliminate electrolytic corrosion.Each flange insulation gasket kit is packaged individually in durable corrugated boxes.Each set is clearly tagged with the flange size,pressure rating,type of insulating sleeve and whether it is a single washer or double washer set.
The type of flange insulation gasket:
Type D

Type D flange insulation gasket

Type D gaskets are specifically designed to fit into the ring groove of ring type joint flanges.They are manufactured of a medium weave,fabric rein forced phenolic material and are sized to ANSI specifications avaliable in basic oval as well as octagonal shape.Also avaliable are BX gaskets with pressure ratings to 15,000 psi.
Type E

Type E flange insulation gasket

Type E is a full-faced gasket with the same outside diameter as the flange and precision cut bolt holes.This design facilitates proper alignment of the gasket during installation.Type E gaskets are avaliable in plain face or Neoprene face phenolic,as well as a variety of high temperature materials.
Type F

Type F flange insulation gasket

Type F gaskets are made to fit the raised face portion of the flange only.As there are no bolt holes in the F gasket,the outside diameter of the gasket falls within the inside diamater of the bolt hole circle.Avaliable in the same materials as the type E gasket.
Type G

 

Type G flange insulation gasket

Type G available in both full-faced(FF) and inside bolt circle version(RF) and incorporates an elastomeric sealing ring in the gasket faces.Appropriate selection of insulating and sealing materials is provides a versatile set with higher chemical and temperature resistance.

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