TEADIT® PL 100 is a PTFE sheet with high compressibility, manufactured through a unique lamination process. This provides a high level of fibrillation and a reduced loss of load and creep, which are inherent deficiencies found on skived PTFE sheets in the market. Due to the chemical properties of PTFE, TEADIT® PL 100 is suitable for sealing a wide variety of chemically aggressive fluids and may also be used in contact with food and pharmaceutical products. It exhibits excellent dimensional stability, torque retention and the best cost-benefit ration among similar materials.
The manufacturing process of TEADIT® PL 100 results in a rigid sheet with low density, facilitating the fabrication of lightweight and structured gaskets. This allows for installation even in hard-to-reach areas with limited space for flange opening. Its high compressibility also enables the use of TEADIT® PL 100 gaskets on irregular flanges surfaces. Its non-stick properties make it easy to remove the gaskets after use, without leaving any material residues on the flanges.
Relaxation Test – TEADIT® PL 100 x Skived PTFE
Flanges with pressure class 300# – 2” RF and stress of 68 MPa, thickness of 2.0mm
Test duration: 20 hours
Hot Compression Test
Compression stress of 10 MPa at 260ºC for 1 minute. Thickness of 2.0mm
Technical Data
Operating parameters
TEADIT® PL100
Maximum temperature (ºC)
260
Minimum temperature (ºC)
-268
Maximum pressure (bar)
55
pH
0-14
Pressure x Temperature
bar x ºC
Thickness of 1,5 mm
12.000
Thickness of 3,0 mm
8.600
Sheet size
1.500 x 1.500 mm
Available thickness
1.5 , 2.0 and 3.0 mm (other upon request)
“m” and “y” factors
Thickness (mm)
“m”
“y” (psi)
1.5
1.8
3.000
3.0
5.9
5.500
The factors “m” and “y” of a gasket are important parameters to be considered when calculating the torque of a sealing gasket. ASME Code Section VIII Division 1 Appendix 2 defines “m” as the gasket maintenance factor (always a dimensionless constant) and “y” as the gasket minimum seating stress. Although ASME provides generic values for the “m” and “y” factors, they can also be determined experimentally for each gasket material. This can be done through the analysis of laboratory results related to the inherent characteristics of each specific material, according to the criteria established by the manufacturer.
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