Inzonex Modular Insulation · Condensate line
Condensate leaves the process between 100 and 140 °C.
Every figure here is solved at 110 °C, the temperature taken for this line. Switch to Compare to put the two states side by side.
Modelled line: 9 items over 2.8 m² at 110 °C — 4.0 kW bare, 184 W covered.
Every item
Open a piece of equipment.
Each one carries its own before and after, its own calculator and its own figures.
What the bare surfaces cost
The condensate line, item by item.
Defaults as modelled. Every row is editable on its own page.
| Equipment | Qty | Area | Surface | Bare | Insulated surface | Insulated | Cut | Saving/yr |
|---|---|---|---|---|---|---|---|---|
| Condensate heat exchanger | 1 | 1.64 m² | 110 °C | 2.2 kW | 27.3 °C | 108 W | 95.1 % | €1 121 |
| Control valve with pneumatic actuator | 1 | 0.14 m² | 110 °C | 216 W | 27.3 °C | 9 W | 95.6 % | €110 |
| Float steam traps | 1 | 0.14 m² | 110 °C | 224 W | 27.3 °C | 9 W | 95.8 % | €114 |
| Ball valves | 4 | 0.57 m² | 110 °C | 866 W | 27.3 °C | 38 W | 95.6 % | €442 |
| Y-strainers | 2 | 0.29 m² | 110 °C | 448 W | 27.3 °C | 19 W | 95.8 % | €229 |
| Line total | 9 | 2.8 m² | 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. Both states are solved at the same load and the same ambient, to VDI 2055-1:2025 and ISO 12241:2022.
Two facings
Which outer face this line takes.
Both are the same module and the same thickness. What differs is what the outside has to survive.
PTFE
The chemically resistant face and lining. It holds up to acids and alkalis, takes mechanical knocks better, and the surface wipes clean. This is the one for a line that gets washed down with caustic.
Silicone
The utilities face. It suits circuits with no caustic washdown, where the module has to stay clean and dry rather than survive chemistry.
How the choice is made
By the environment and the cleaning regime, not by price. Ask what gets sprayed on the plant and how often, then pick the face that survives it.
Asked about condensate
Questions.
Answers distinguish modelled heat-loss estimates from equipment selection and service guidance.
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?
The line modelled here is 9 items over 2.8 m² of hot surface. Bare it 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.