Mechanical Insulation
Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
Showing changes from Rev 3
to Rev 4
in Mechanical Insulation.
---
title: Mechanical Insulation
…145 unchanged lines
### The insulation material and thickness for each system are governed first by the temperature of the fluid or air it carries. {note}
+### Each insulated service shall be classified by its design operating temperature, because that temperature determines both the minimum thickness required by the energy code and the material's suitability.
+
```datasheet
label: Service Temperature Classification
…7 unchanged lines
```
−### Each insulated service shall be classified by its design operating temperature, because that temperature determines both the minimum thickness required by the energy code and the material's suitability. {note}
−
### An elastomeric foam that is ideal on a chilled-water line will not survive on a steam line, and a calcium-silicate block that is correct on a steam line is wholly unsuited to a cold line. {note}
…4 unchanged lines
### Whether a run is concealed in a conditioned interior, exposed in an occupied space, located in a mechanical room, or exposed outdoors governs the choice of jacket and the need for weatherproofing and impact protection. {note}
+### Outdoor and mechanical-room-low locations shall be provided with a weather- and abuse-resistant metal jacket; concealed interior runs need only the basic factory jacket.
+
```datasheet
label: Installation Environment
…7 unchanged lines
```
−### Outdoor and mechanical-room-low locations shall be provided with a weather- and abuse-resistant metal jacket; concealed interior runs need only the basic factory jacket.
−
## Ambient Design Humidity for Cold Service {toc}
…136 unchanged lines
### The thickness increases with both fluid temperature and pipe size; the larger of the code value and any drawing requirement governs. {note}
+### The insulation thickness for heating hot water piping in the 105–200°F range shall be specified for each pipe size, not less than the governing code value.
+
```datasheet
label: Heating Hot Water Insulation Thickness (105–200°F service)
…9 unchanged lines
```
+### The insulation thickness for steam and steam condensate piping in the 201–350°F range shall be specified for each pipe size, not less than the governing code value.
+
```datasheet
label: Steam and Steam Condensate Insulation Thickness (201–350°F service)
…310 unchanged lines
## Materials shall be handled to avoid crushing preformed pipe insulation and denting metal jacket stock.