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2.2 |
LOW TEMPERATURE PIPING AMBIENT to 599°F (315°C)
The pipe insulation shall be premolded and core formed.
A thermal calculation should be performed to determine the
proper insulation thickness to ensure either personnel protection
or process control. |
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2.2.1 |
COMPOSITION:
Basalt wool and organic binder which is non-combustible and
asbestos free. |
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2.2.2
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DENSITY:
The density to be between 6.8 and 8.6 pcf. |
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2.1.3
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MAXIMUM THERMAL CONDUCTIVITY:
The thermal conductivity shall not exceed the following
as per ASTM C547:
BTU in./ft2°F (W/m K)
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Mean temperature
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0.31 (0.045) |
200°F (93°C) |
0.37 (0.053) |
300°F (149°C) |
0.45 (0.065) |
400°F (204°C) |
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2.2.4 |
MAXIMUM NON-FIBROUS (SHOT) CONTENT:
The percentage of non-fibrous material (shot) shall not
exceed 20% by weight. |
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2.2.5 |
WATER VAPOR SORPTION:
The water vapor sorption shall be less than 1% by weight. |
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2.2.6 |
STRESS CORROSION:
The material must not promote or contribute to the corrosion
of austenitic stainless steel. |
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2.2.7 |
SURFACE BURNING CHARACTERISTICS:
Shall not exceed
Flame Spread 5 Smoke Developed 0 |
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APPROVED MANUFACTURE (S): FIBREX INSULATIONS, INC.
Single or multiple layer - COREPLUS 1200 PIPE INSULATION |
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2.3 |
BELOW AMBIENT
The pipe insulation shall be premolded and core formed.
A thermal calculation should be performed to determine the
proper insulation thickness to ensure either personnel
protection or process control. Where the insulation thickness
exceeds 3", a multiple layer system is recommended.
All below ambient applications require a proper vapor barrier. |
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2.3.1 |
COMPOSITION:
Basalt wool and organic binder which is non-combustible
and asbestos free. |
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2.3.2 |
DENSITY:
The density to be between 6.8 and 8.6 pcf. |