Types of flange insulation gasket kit

The flange insulation gasket kit is the most widely used form of controlling losses due to corrosion.Flange insulation gasket kits 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 and confine or eliminate electrolytic corrosion.Flange insulation gasket kits are of the following types:

TYPE E

(Full Face)-gaskets are designed for full protection of flanges and have the same outside diameter as the flange.Each gasket has precision-located bolt holes.All Type E gaskets are easily centered with the flange inside diameter.Gaskets with slightly larger outside diameters are available on request.

TYPE F

(Ring) – gaskets are designed to fit the raised face portion of flanges.The outside diameter of the gasket is slightly smaller than the inside diameter of the bolt hole circle.The outside diameter is designed for alignment by the insulating sleeves.The central gaskets are available in the same materials as Type E.

TYPE D

(API Ring Joint) – gaskets are insulating ring joint gaskets made to fit the ring groove of Ring Type Joint flanges.The Type D central gasket is made of medium weave fabric-reinforced phenolic,manufactured to ASA (ANSI) gasket dimensions.Properties are similar to those of phenolic flat central gaskets and are available in the basic octagonal shapes.

SEAL TYPE O

Gasket and O-Ring are available in different materials to maintain constant contact with the flange face.The O-ring allows near zero leakage static sealing and limits the area of seal exposed to fluid attack.The gasket can be a full face (Type E) or ring  gasket (Type F) configuration.

Haihao Group can supply all types flange insulation gasket kit and flanges products in high quality,for more information,please feel free to contact us email:sales@haihaogroup.com