1. Select Pipe Size, NPS
0.5
0.75
1
1.25
1.5
2
2.5
3
3.5
4
5
6
8
10
12
14
16
18
20
22
24
2. Operating Temperature, °F
3. Ambient Temperature, °F
4. Ambient Relative Humidity, %
5. Wind Speed, mph
6. Select Insulation
Cellular Glass (-450°F to 800°F) ASTM C 552 T II
Elastomeric (-297°F to 220°F) ASTM C 534 T I, Gr 1
Fiberglass (to 850°F) ASTM C 547 T I
Flexible Aerogel (-321°F to 257°F) ASTM C 1728 T I, Gr 1B
Mineral Wool (to 1200°F) ASTM C 547 T II & III
Phenolic (-40°F to 257°F) ASTM C 1126 T III
Polyethylene (-150°F to 200°F) ASTM C 1427 T I, Gr1
Polyisocyanurate (-297°F to 300°F) ASTM C 591 T IV
Polystyrene (-65°F to 165°F) ASTM C 578 T XIII
7. Select Emittance of Surface
0.04 - Aluminum, new, bright
0.10 - Aluminum, oxidized, in service
0.13 - Stainless steel, new, cleaned
0.28 - Galvanized steel, dipped or dull
0.30 - Stainless steel, dull, in service
0.50 - Aluminized paint
0.80 - Painted metal
0.90 - All Service Jacket
0.90 - PVC jacketing
0.90 - No jacket
0.95 - Black rubber/mastics
One of the values is empty, not a number, or lower than zero.