|Unsuitable ﬂuids||Oxidizing acids and substances susceptible to burn such as oxygen, polymerizable monomer, strong alkali, gas susceptible to burn and 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|
|Dimensions||Width × Length (mm):
1270 x 1270 (t1.0、t1.5)
1500 x 1500 (t2.0、t3.0)
Color type: black
Print color: black
- 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.
Minimum design seating stress
3.0 2.00 11.0 1.5 2.75 25.5 1.0 3.50 44.8
- 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)