Expanded PTFE Gaskets

Offering versatility and convenience in the form of a highly conformable flexible strip is the expanded PTFE gaskets by Goodrich Gasket Pvt Ltd that is used in non-standard flange applications. It is also a backup sealing option under non availability of conventional gaskets.

We at Goodrich Gasket offer PTFE gaskets with excellent chemical resistance and inherent cleanliness making the product a suitable sealing agent against aggressive media or feedstock contaminated areas. The presence of an adhesive backed strip eases the installation in large or complex flange applications, such as air conveying and solvent recovery systems

Expanded PTFE gaskets are suitable for temperatures ranging up to 260°C and for cryogenic applications like hydraulic systems, water supply systems, ventilation ducts, fan housing, fume ducts, pneumatic systems, engine case doors etc.

Expanded PTFE Gaskets

Full Face

Expanded PTFE Gaskets

Raised Face

Goodrich Gasket offers the following width and thickness of expanded PTFE gaskets

Widths & thicknesses of Expanded PTFE gaskets at Full compression

Sealant thickness [mm] Sealant width [mm] Compressed thickness [mm] Compressed width [mm]
1.5 3.175 0.3 6
2 5 0.4 10
2.5 7 0.45 13
4 10 0.55 20
5 12.5 0.8 24
5 14 0.8 22
6 [7/32”] 17 1 29
6 19 1.25 34
6 25 1.25 45

It’s all in the bolt forces that ultimately decide on the gasket sealing capacity and the bolt forces per unit length of seal as follows:

Width[in] Gas Tight [lbf/in] (Based on compressed air at 600psi) Water Tight [lbf/in] (Based on water at 30psi)
Smooth flanges Rough flanges
1/8 500 - 280
3/16 1280 - 280
1/4 1260 2520 390
3/8 1540 2800 390
1/2 1540 2940 390
5/8 1680 2940 420
3/4 1960 3360 420