Modified PTFE gasket material manufactured with bi-axial orientated chains to obtain a tight seal for demanding applications. This material has a rather high compressibility characteristics and low minimum seating stress value. Therefore this material is highly recommended for low torque applications, plastic pipe systems and flanges, as well as glass and ceramic lined equipment. Blue in color and produced with Modified PTFE and hollow glass microspheres as a filler.
Specially designed for use in low bolt loaded constructions for sealing applications across whole pH-range: Therefore extremely suitable for glass, ceramics, and plastic lined or distorted flanges and even flanges with light surface irregularities.
Particularly for use with strong acids (except hydrofluoric acid) and alkalis. Other applications include solvents, fuels, water and oil. A chemical resistance list is available upon request. Pressure up to 800 psi. Temperature from -450 °F up to 500 °F.
TECHNICAL DATA
max Temperature [°F] | 500 |
max Temperature [°C] | 260 |
max Pressure [psi] | 800 |
density [g/cm3] | 1.7 |
Leakage Specific Leak Rate [DIN 28090-2] [mg/(s*m)] | 0.02 |
Minimum initial stress [DIN E 2505 part 2] [N/mm2] | 10 |
Maximum initial stress [DIN E 2505 part 2] [N/mm2] | 100 |
M-Value | 3 |
Y- Value [psi] | 1600 |
min Seating stress [Qmin(L 0,01), mg/(s*m)] at RT 40 bar [N/mm2] | 20 |
ASTM F36 Recovery [% min] | 30 |
Gasket required flange roughness [Ra micron] | 3,2-6,3 |
Gasket required flange roughness [RMS] | 125-250 |
max Seating stress [Qsmax bei RT EN13555] [n/mm2] | 100 |
Tensile Strength (quer) DIN 52910 [N/mm²] | >= (13) 1885 |
Advice Seating stress at assembly [psi] | 5000 |
ROTT [Gb] | 458 |
ROTT [a] | 0.3 |
ROTT [Gs”] | 5.37 |
compressability, [ASTM F36], [%] | 30-40 |
ASTM F36 Recovery [% min] | 30 |
ASTM F37 Sealability [ml/min] Sg=1000 psi=30 | 0.02 |
ASTM F38 Creep Relaxation [%] | 27 |
ASTM F152 Average Tensile [psi] | 2000 |
Contact
Leader Gasket
Global Headquarters: Houston, TX
850 Sens Road
La Porte, TX 77571
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Phone: +1 281-542-0600