Inzonex Modular Insulation · Condensate line
Condensate leaves the process between 100 and 140 °C.
Estimate for one condensate line:
The figures initially displayed are example scenarios.
Modelled line at 110 °C — 4.0 kW bare, 184 W covered.
01 / Equipment
Open a piece of equipment.
Each one carries its own before and after, its own calculator and its own figures.
02 / Savings
The condensate line, item by item.
Defaults as modelled. Every row is editable on its own page.
| Equipment | Qty | Surface | Bare | Insulated surface | Insulated | Cut | Saving/yr |
|---|---|---|---|---|---|---|---|
| Condensate heat exchanger | 1 | 110 °C | 2.2 kW | 27.3 °C | 108 W | 95.1 % | €1 121 |
| Control valve with pneumatic actuator | 1 | 110 °C | 216 W | 27.3 °C | 9 W | 95.6 % | €110 |
| Float steam traps | 1 | 110 °C | 224 W | 27.3 °C | 9 W | 95.8 % | €114 |
| Ball valves | 4 | 110 °C | 866 W | 27.3 °C | 38 W | 95.6 % | €442 |
| Y-strainers | 2 | 110 °C | 448 W | 27.3 °C | 19 W | 95.8 % | €229 |
| Line total | 9 | 4.0 kW | 184 W | 95.4 % | €2 016 |
Areas for the valves, the strainers and the trap body come from ISO 12241:2022 Annex A.2.3, Table A.3 at the selected DN. The exchanger is the area of its closed box.
03 / Outer cover material
Outer cover material
PTFE-coated fabric
Chemically resistant. It holds up to acids and alkalis, takes knocks better and wipes clean. Use it where the line is washed down with caustic.
Silicone-coated fabric
For utilities. Use it where there is no caustic washdown.
How the choice is made
Choose by the cleaning regime: what is sprayed on the plant, and how often.
04 / Questions
Questions.
What temperature is a condensate line?
Between 100 and 140 °C. Every figure here is solved at 110 °C, the temperature taken for this line. The band follows the pressure the condensate is returned at.
How much heat does a bare condensate line lose?
Bare, the line modelled here sheds 4.0 kW. With 50 mm of removable insulation it sheds 184 W, which is 95.4 per cent less.
Why is condensate equipment usually left bare?
Because all of it is opened. Traps are stripped for the float and the seat. Strainers are cleaned on a cycle and control valves are set and re-set. The exchanger pack comes apart. Fixed lagging on any of that is cut off once.
What does insulating a condensate line save in a year?
On the defaults here, €2 016 a year at 60 €/MWh and 8,000 operating hours. Enter your own fuel price, hours and areas on any item page and every figure recomputes.
Should the outer facing be PTFE or silicone?
PTFE where the plant is washed down with acids or alkalis: it is the chemically resistant face, it takes knocks better and it wipes clean. Silicone on utilities with no caustic washdown. It is a choice about the environment, not about price.