← The hot-water roomYour calculated result
Inzonex Modular Insulation · Hot-water skid
Estimate for one hot water skid:
The figures initially displayed are example scenarios.
Estimate: 60 °C bare surface · 8,000 operating hours/year.
01 / For your operating conditions
Change any input and every figure recomputes. The defaults describe the equipment modelled here.
02 / What this is
A sieve in the line, and it is opened on a cycle.
A Y-strainer is a branch off the pipe at an angle, with a perforated basket in it. Flow passes through the basket and debris stays inside. The branch is unbolted to empty it.
On this hot-water skid there are 3 each with a surface above room temperature. At 60 °C they shed 648 W into the plant room. With 50 mm of removable insulation the same surfaces shed 34 W, 94.7 % less. The module settles at 23.5 °C, at or under our 45 °C insulated-surface design target. We set that target against the burn thresholds in EN ISO 13732-1.
Calculation basis
Steady-state estimate based on the dimensions and operating conditions shown. Confirm project figures with measured equipment data.
03 / Inzonex benefits
Three flanged Y-strainers on the hot-water circuit. The one in this frame sits upstream of the dirt separator and the KM-5 heat meter. The blowdown valve stays outside the module so the basket can be flushed without taking the cover off. Modules unclip for operation and inspection, then refit onto the same geometry.
The body is wider than the line it sits in, and the branch hangs below it. The wetted surface is several times the pipe it replaces. ISO 12241 gives an equivalent bare area per DN that already includes the flanges and the cap.
Most of what a strainer ever catches arrives in the first weeks after installation or after work upstream. It is checked, blown down and opened more often than the plant around it.
A small valve on the cap flushes the basket under line pressure. Cover that and a two-minute job becomes a shutdown, which is how covers get cut off.
It points down so gravity holds the catch, which puts hot metal at shin height. The insulated case is held at our 45 °C insulated-surface design target.
04 / Scenarios
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 | 50 °C | 55 °C | 60 °C | 65 °C | Insulated 60 °C | Cut |
|---|---|---|---|---|---|---|
| Area scenario 1Not a product size | 44 W | 52 W | 62 W | 71 W | 3 W | 94.7 % |
| Area scenario 2Not a product size | 49 W | 59 W | 69 W | 80 W | 4 W | 94.7 % |
| Area scenario 3Not a product size | 56 W | 67 W | 79 W | 92 W | 4 W | 94.7 % |
| Area scenario 4Not a product size | 67 W | 80 W | 95 W | 109 W | 5 W | 94.7 % |
| Area scenario 5Not a product size | 75 W | 90 W | 106 W | 123 W | 6 W | 94.7 % |
| Area scenario 6Not a product size | 93 W | 112 W | 132 W | 153 W | 7 W | 94.7 % |
| Area scenario 7Not a product size | 115 W | 139 W | 164 W | 189 W | 9 W | 94.7 % |
| Area scenario 8Not a product size | 147 W | 177 W | 209 W | 241 W | 11 W | 94.7 % |
| Area scenario 9Not a product size | 208 W | 250 W | 294 W | 340 W | 15 W | 94.7 % |
| Area scenario 10Not a product size | 280 W | 337 W | 397 W | 458 W | 21 W | 94.7 % |
| Area scenario 11Not a product size | 375 W | 451 W | 531 W | 614 W | 28 W | 94.7 % |
| Area scenario 12Not a product size | 580 W | 699 W | 823 W | 951 W | 43 W | 94.7 % |
| Area scenario 13Not a product size | 849 W | 1.0 kW | 1.2 kW | 1.4 kW | 63 W | 94.7 % |
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
05 / Result
06 / Questions
The way the arrow on the body points, and with the branch hanging below the pipe on a horizontal run. Reversed, water enters inside the basket and pushes debris out through the mesh. Branch upward, gravity drops the whole catch back into the line as soon as flow stops.
Whatever the equipment downstream needs, and no finer. A pump needs coarse protection against anything that would jam an impeller. A plate heat exchanger needs finer, because debris that passes a pump will stop in a plate channel.
Through the blowdown valve on the cap, which flushes the basket under line pressure. Without one the cap has to come off, and that means isolating and draining. A rising pressure drop across the strainer at unchanged flow is what tells you it is time.
Modelled here: 3 at 60 °C lose 648 W bare and 34 W with 50 mm — 94.7 per cent less. The area already includes the flanges and the cap. It is far larger than the pipe it sits in.
07 / Method
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.
08 / Going deeper
The figures on this page say what the heat costs. These say what to specify and how it is serviced.
09 / The rest of the skid
A plate pack runs hot on every face.
OpenHot waterThe casing stays hot. The motor must not.
OpenHot waterThe smallest surfaces lose the most.
OpenHot waterEvery joint is a fin the pipe did not ask for.
OpenHot waterA separator holds its charge at line temperature.
Open