Project: Thailand 1

Project-No.: 605520

Drawing Up.: 1 Basics

1.3.4. Specification of Insulation

Rev.: 0 605520_1_3_4_specification_of_insulation_20120531.doc

Page 1 of 2

1.3.4 Specification of Insulation

Heat insulation

All insulation is made with mineral wool with a jacket made of galvanized steel plate.

The insulation is used to prevent heat emission losses, moisture condensation and protection

against accidental contact.

The insulation thickness of apparatus and equipment are carried out in accordance with the

requirements on the data sheets and for pipes in accordance with the requirements of the P & I

diagrams.

Technical data:

Heat insulation material is calcium silicate, which density is 80~100kg/m³, the heat transfer

value is 0.035 W/m.K at the AMB temperature.

Cold insulation material is polystyrene foam, which density is 20~50kg/m³, the heat transfer

value is 0.0314~0.0465 W/m.K at the AMB temperature.

Project: Thailand 1

Project No.: 605520

Drawing up: 1. Basics

1.3.4. Specification of Insulation

Rev.: 0

Page 2 of 2

Insulation Thickness for Equipments and Pipelines

Nominal Diameter

DN

Heat Insulation Thickness

mm

Cold Insulation

Thickness mm

Temperature

50~100 °C

Temperature

150 °C

Temperature

200 °C

Temperature

250 ° C

Temperature

300 ° C

Temperature

350 ° C

20 and smaller 40 60 80 80 100 100 40

25 40 60 80 80 100 100 40

32 40 60 80 80 100 120 40

40 40 60 80 100 120 140 40

50 40 80 100 120 140 160 40

65 40 100 120 140 160 180 60

80 40 120 140 160 180 200 60

100 40 120 160 200 240 260 60

125 50 120 160 200 240 260 80

150 50 140 180 220 260 280 80

200 60 140 180 220 260 280 100

250 60 140 200 240 280 300 100

300 and bigger 70 160 200 240 300 300 100

Pipelines for vent, fill and drain of Diphyl systems will be insulated with 80 mm, uniformly.