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PTFE Envelope Gasket - Style No:TPEG

PTFE Envelope Gasket

PTFE Envelope Gasket with a good quality product filled with filler that have excellent compressibility 

and recovery inside, is coated with PTFE that have excellent chemical-resitance 

and stress-relaxation is small in high load, have a excellent seal ability.

PTFE Envelope Gasket 

1.Full Envelope Gasket 

2.Half Envelope Gasket

General Applications: Strong acids alkalis, Oxygen chlorine gas, 

Flange parts for organic solvent, Gaskets for electric insulation flange.
Gasket Core: Metallic Gasket ,Asbestos, Non Asbestos, Rubber, Millboard

Temperature: -100o C - 250o C
Pressure: 5 Mpa
Supplying Size: DN 10-600mm / NPS 1/2"~24"

Stardand:ASMEB16.21,DIN,GB,HGT ect.

Certificater: FDA 21 CFR177.1550,ROHS,MSDS

The Third Party Inspection Institution:TUV Germany


PTFE Envelope Gaskets are available in a wide variety of models.

Typical Styles:


Non-asbestos Jointing Sheet

Non-asbestos Jointing sheet is made from synthetic fibre, natural rubber,compression moilding it.

Used for the equipment in water,steam,etc and used as sealing material in the joints of pipeline.

Normal colour: Black with some white, Blue or Green-white etc.

Material:available with tin steel, copper, SS304 etc. wire mesh insertion,

Resistance to to media: Water, seawater, steam, fuel, gases, salt solutions and many other media.

Data Sheet:





 Density g/cm3




 Tensile strength ≥Mpa




 Compressibility ≥%




 Recovery ≥%




 Aging Coefficient




 Stress Relaxation ≤%




 Steam Sealing

 Tmax:   200℃

 Tmax:   300℃

 Tmax:   400℃

 Pmax: 2~3Mpa

 Pmax: 4~5Mpa

 Pmax: 8~9Mpa




 no shock

 no shock

 no shock

 Tmax:  ℃




 Pmax:  Mpa



 Resistance To Media

 Water, seawater, steam, fuel,  gases, salt solutions

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                                  Dimensions of PTFE envelope gasket as per Standard DlN EN 1514-3


                               Dimensions of PTFE envelope gasket as per standard DIN EN 12560-3

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