Inzonex Modular Insulation · Feedwater set
Feedwater flanged joints
Estimate for one feedwater line:
The figures initially displayed are example scenarios.
01 / For your operating conditions
Your calculated result
Change any input and every figure recomputes. The defaults describe the equipment modelled here.
02 / Result
What it comes to.
- Outer surface at 50 mm
- 26.6 °CMeets the 45 °C design target
- Bare metal at 100 °C
- Above the 45 °C insulated-surface design targetContact risk depends on material and duration; no burn time is calculated
- Average payback
- Enter your installed cost to calculate payback.
03 / Other equipment
Other equipment
04 / Questions
Questions.
How much heat do the flanged joints lose on a feedwater line?
Modelled here: at 100 °C they lose 2.6 kW bare, and 120 W with 50 mm of removable insulation. That is 95.5 per cent less.
Where does the area come from?
The default is a provisional reference area, not a measured area for this model. Automatic DN lookup is unavailable until construction and pressure class are confirmed. Enter the verified external hot area, including physical fasteners where present. Exclude cold actuators and avoid counting shared surfaces twice.
Is it safe to touch once insulated?
The module settles at 26.6 °C on these defaults, under our 45 °C insulated-surface design target. We set that target against the burn thresholds in EN ISO 13732-1.
05 / Method
How the figure is produced.
Calculation basis
Steady-state estimate based on the dimensions and operating conditions shown. Confirm project figures with measured equipment data.
Insulated surface: up to 45 °C.
06 / Scenarios
Area at each service temperature.
Bare surface loss per item. Nothing here is interpolated — each cell is a separate solution of the same balance, at 20 °C ambient.
| Reference scenario | 90 °C | 95 °C | 100 °C | 105 °C | Insulated 100 °C | Cut |
|---|---|---|---|---|---|---|
| Area scenario 1Not a product size | 121 W | 132 W | 144 W | 156 W | 7 W | 95.5 % |
| Area scenario 2Not a product size | 136 W | 148 W | 161 W | 175 W | 7 W | 95.5 % |
| Area scenario 3Not a product size | 156 W | 170 W | 185 W | 201 W | 8 W | 95.5 % |
| Area scenario 4Not a product size | 185 W | 203 W | 221 W | 239 W | 10 W | 95.5 % |
| Area scenario 5Not a product size | 208 W | 228 W | 248 W | 269 W | 11 W | 95.5 % |
| Area scenario 6Not a product size | 259 W | 283 W | 308 W | 334 W | 14 W | 95.5 % |
| Area scenario 7Not a product size | 320 W | 351 W | 381 W | 413 W | 17 W | 95.5 % |
| Area scenario 8Not a product size | 409 W | 447 W | 487 W | 527 W | 22 W | 95.5 % |
| Area scenario 9Not a product size | 577 W | 631 W | 686 W | 744 W | 31 W | 95.5 % |
| Area scenario 10Not a product size | 777 W | 850 W | 925 W | 1.0 kW | 42 W | 95.5 % |
| Area scenario 11Not a product size | 1.0 kW | 1.1 kW | 1.2 kW | 1.3 kW | 56 W | 95.5 % |
| Area scenario 12Not a product size | 1.6 kW | 1.8 kW | 1.9 kW | 2.1 kW | 87 W | 95.5 % |
| Area scenario 13Not a product size | 2.4 kW | 2.6 kW | 2.8 kW | 3.0 kW | 127 W | 95.5 % |
Illustrative areas, not verified DN-to-area mappings for this equipment. Replace the input with measured external geometry for a project calculation. Physical bolt, nut, flange and stem coverage must be checked separately.
Insulated column: 50 mm lamella at λ 0.038 W/m·K. Outer surface calculated without clamping. Our 45 °C design target is checked against the burn thresholds in EN ISO 13732-1