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| Unsuitable fluids | Polymerizable monomer, strong alkali, and toxic gas |
| Applications | Connection Joint sections ofs of cover flanges and nozzles and the like for pipe flanges, and valve bonnets, of cover flanges and nozzles in towers & tanks, ovens, pressure vessels and heat exchangers used in various factories including power stations, oil refineries, iron workssteel plants, and shipyards |
| Dimensions | Width × Length (mm): 1270 x 1270 (t1.5 & t2.0) 1270 x 1270 & 1500 x 1500 (t3.0) Color type: off-white Print color: green |
Design Data
- Recommended tightening stress
Tightening stress is defined as the pressure required under standard conditions without consideration to the opening force due to internal fluid.Fluid Recommended tightening stress (MPa) Liquid 25.5 Gas 35.0 - Available ranges
Temperature and pressure classifications show individual service limits.Temperature (°C) Pressure (MPa) -200~300 3.5 - m,y values
The m, y values for Compressed Fiber Sheets defined in Appendix G of JIS B 8265 can be applied to the m, 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
Features
- Free from hardening deterioration and aging due to heat.
- Retightening is possible as no hardening occurs.
- Applicable to a wider variety of fluids compared to other Compressed Fiber Sheet.
- No sticking to flanges.
Stress strain characteristics of High Performance Non-Asbestos Sheet
(Dimension of test piece：JIS 10K 25A t =1.5mm)
