APG’s soft-chem - 100% Virgin PTFE Sheets provide excellent corrosion resistance and impermeability along with superior creep resistance and sealability for use in all types of applications. A proprietary manufacturing process results in a uniform and highly fibrillated micro-structure with equal tensile strength in all directions. And its superior memory characteristics ensure that bolts remain tight, so re-torquing is not necessary. The material’s high compressibility enables it to deform under load and conform to irregularities in flange faces for a tight seal with low, minimum sealing stress. Standardizing with it also helps to reduce maintenance, simplify inventory, and save money.
Features
Max Pressure: 2900 psi
Mechanically bonded tanged stainless-steel insert
Temperature Range: -450℉ - 500℉
Excellent resistance to chemical attack
Flexibility makes it easy to hand or die cut and simple to install
Indefinite shelf life
Dimensionally Stable
Applications
High temperature water & steam
Chemical
Alkalis / Ketones / Aldehydes
Certifications
DIN-DVGW
KTW-Guideline
Fire-safe acc. to DIN EN ISO 10497
German Llyod
Product Specifications
Typical Values Refer to 1/16'' Thick Material Unless Noted
| Pressure limit | 2900 psi |
| Temperature range | -450℉ to 500℉ |
| Compressibility ASTM F36A |
45 % |
| Recovery ASTM F36A |
14 % |
| Stress relaxation DIN 52913 | 15 MPa |
| Tensile ASTM F152 | > 20 MPa |
| Density | 56 lb/ft3 (0.90 g/cm3)% |
| Color | White |
Pressure/Temperature Graphs
The pressure/temperature graphs shown are the most current method of determining the suitability of a gasket material in a known environment. However, chemical compatibility must also be considered.
IIn area 1 the gasket material is suitable using common installment practices subject to chemical compatibility
IIn area 2 appropriate measures are necessary for installation of the gasket to ensure maximum performance.
IIn area 3 do not install gaskets in these applications without first contacting APG for technical support service.