COMPOSITION
Compressed sheets for gaskets CSA - 90 are manufactured with aramide
and high quality mineral fibres mixed in a rubber NBR matrix. This
material has got high compressibility, good resistance to traction
and low gas permeability, excellent characteristics for many industrial
services, where the high demand of resistance to temperature and
pressure must be combined.
| Technical
Data. |
| COLOUR |
Pink |
| Standard sizes
(mm) Other upon request |
1500
x 1500 |
| Standard thickness
(mm). Other upon request |
0.5; 0.8;
1; 1,5 ; 2; 3 |
| Density
(± 10%) |
1,6
g/cm³ |
| Compressibility
ASTM F-36A |
7%-15% |
| Recovery
ASTM F-36A |
>50% |
| Transverse
tensile strengthl ASTM F-152 |
13
MPa |
| Gas
permeability DIN 3535/4 |
<
1 cm³/min |
| Thickness
increase ASTM F-146 after: |
| Immersion
in ASTM oil Nš1 5h 150ºC |
<1% |
| Immersion
in ASTM oil Nš3 5h 150ºC |
<4% |
| Immersion
in ASTM fuel B 5h 20ºC |
<6% |
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| PRESSURE-TEMPERATURE DIAGRAM |
P-T OPERATING GUIDELINES
|
 |
1- Usually satisfactory to use without
reference to Montero. Technical examination is normally unnecessary.
2- Must refer to Montero for advice. A technical examination
is recommended
3- Area not recommended.
The P-T diagram helps the user or designer who often knows
the operating temperature and pressure to carry out an initial
selection of a suitable material . The P-T diagram cannot
guarantee the suitability of a material for an application.
|
CERTIFICATIONS:
DVGW, WRC (Without anti-stick treatment), DIN 1092-I ,
LLOYD´S REGISTER OF SHIPPING
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CREEP DEFORMATION / HOT CREEP
TEST
|
 |
|
|
Temperature increase |
Fyesa laboratory |
|
|
Thickness decrease |
SEPTEMBER
2001 |
CREEP DEFORMATION: percentage loss of thickness over a
specified time under constant load, applied at a specified
rate, at a specified temperature.
Creep (%) = (loss of thickness under load at a specified
time / initial thickness of the sample) x 100
Creep deformation gives an indication of the effect of
time and temperature on deformation behaviour of gaskets
materials.
This parameter also gives an indication about the trend
of a gasket material to leak in combination with the variables
that also affect to a flanged union
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