Tiếng Việt
日本語
Korean
| Suitable fluids | Water, seawater, hot water, steam, air, acid (includes strong acid), alkali (includes strong alkali), salt aqueous solution, oils, alcohol, aliphatic solvent and its vapor, and various types of gas, etc. |
| Unsuitable fluids | Polymerizable monomer,toxic gas |
| Applications | Joint sections of cover flanges and nozzles and the like for pipe flanges, valve bonnets, towers & tanks, ovens, pressure vessels and heat exchangers used in various factories including power stations, oil refineries, steel plants and shipyards |
| Main Component | PTFE, silicon carbide |
| Color/Print | Gray / Blue |
Design Data
- Allowable ranges
Temperature and pressure classifications show individual service limits.Temperature (°C) Pressure (MPa) -200~300 3.5 - Dimensions
Thickness (mm) Size (mm) 1.0 1270×1270 1.5, 2.0,3.0 1500×1500 - Design Criteria
The values for Compressed Non-asbestos Fiber Sheets defined in Appendix G to JIS B 8265 can be applied to m and y values of High Performance Non-asbestos Sheets.Thickness
(mm)Gasket factor
“m”Minimum design seating stress
“y”(N/mm2)3.0 2.00 11.0 1.5 2.75 25.5 1.0 3.50 44.8 - Recommended Tightening stress(MPa)
The recommended tightening stress is the pressure required under standard conditions without consideration to the endforce due to internal
fluid. It is the stress on the contact area of the gasket
| Fluid | Recommended tightening stress (MPa) |
| Liquid | 25.5 |
| Gas | 35.0 |
Stress strain characteristics of High Performance Non-Asbestos Sheet
(Dimension of test piece：JIS 10K 25A t =1.5mm)
