All PTFE & Tuf-Steel® Gaskets with 100 Mesh Screens include a 10 Mesh backing screen. Due to the flow characteristics of PTFE, this is necessary to ensure entrapment of the screen within the gasket.
**These are hard to find items. Stock is limited.
PTFE Gasket Features:
- -100°F to 500°F Temperature Range
- Excellent heat resistance
- Almost no extractables
- Low absorption rate
- Excellent resistance to process fluids
- Good stability
- 316L Stainless Steel Mesh
- Interchangeable with standard Tri Clamp Gaskets
Storing PTFE Screen Gaskets:
- Shelf Life: 20 Years from cure date
- Store in original packaging in clean and dry warehouse
- Do not expose to direct sunlight
- Keep more than 6′ away from electric motors
- Maintain temperature between 65°F and 85°F
PTFE Gasket Standards Compliance:
- FDA CFR 21, 177.1550
- U.S. Pharmacopeia Class VI Certification
- USDA Hazard Analysis and Critical Control Points
- Cytotoxicity Criteria
- USDA and 3-A Sanitary Standards
- ASME-BPE Standards for Type I and Type II
- ADI Free® (Animal Derived Ingredient Free)
- Current Good Manufacturing Practices (CGMP)
| 1 = Excellent 2 = Good 3 = Acceptable 4 = Marginal 5 = Poor 6 = Do Not Use |
||||||||
|---|---|---|---|---|---|---|---|---|
| Material | Cont. Steam |
Inter. Steam |
Pure Water Ambient |
Pure Water Hot |
Process Fluids Ambient |
Process Fluids Hot |
Process Fluid Variables 0°-100°C |
Temperature Range |
| Tuf-Steel® | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -350°-550°F |
| Tuf-Flex® | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -20°-300°F |
| Food-Flex® | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -30°-250°F |
| PTFE | 1 | 1 | 1 | 1 | 1 | 1 | 3 | -100° to 500°F |
| Silicone (platinum) |
2 | 2 | 2 | 2 | 2 | 2 | 1 | -40°-450°F |
| Silicone (peroxide) |
2 | 2 | 2 | 2 | 2 | 2 | 1 | -40°-450°F |
| FKM | 3 | 2 | 2 | 2 | 2 | 2 | 2 | -30°-400°F |
| EPDM (peroxide) |
3 | 3 | 3 | 3 | 3 | 3 | 3 | -30°-300°F |
| Buna | 0 | 0 | 5 | 5 | 5 | 5 | 5 | -30°-200°F |
