Silent In-Line Series
The Silent In-Line Series was built for people who want real airflow — without the noise that usually tags along.
It’s calm, steady, and tough enough for nearly any setup — from home ventilation systems to busy commercial or industrial spaces that need quiet performance around the clock.
Each unit is made from heavy‑gauge galvanized steel with an anti‑corrosion coating, so it stands up well in humid or demanding environments. Inside, the aerodynamic design keeps everything balanced, moving air efficiently while keeping noise to a whisper.
It comes in multiple sizes and airflow capacities, so whether you’re installing a compact residential duct or upgrading a larger commercial network, there’s a model that fits smoothly into the plan.
The shape is clean and compact — a cubic design that makes installation refreshingly simple. The standardized mounting brackets mean you can bolt it in and align the ducts without wrestling the hardware for half a day.
Quiet. Reliable. Built like it belongs there. The Silent In‑Line Series doesn’t make a scene — it just keeps air moving, quietly doing its job for years to come.
Dimensions (unit: mm):

| Model | L | L1 | W | W1 | H | H1 | C |
|---|---|---|---|---|---|---|---|
| DPT10-12B | 462 | 388 | 240 | 180 | 200 | 45 | Φ96 |
| DPT10-24B | 462 | 388 | 240 | 180 | 200 | 45 | Φ96 |
| DPT15-32B | 488 | 388 | 240 | 186 | 238 | 40 | Φ148 |
| DPT15-42B | 540 | 440 | 270 | 210 | 380 | 51 | Φ148 |
| DPT20-54B | 562 | 470 | 340 | 270 | 382 | 52 | Φ198 |
| DPT20-54C | 632 | 540 | 370 | 270 | 320 | 71 | Φ198 |
| DPT20-65B | 662 | 570 | 401 | 300 | 365 | 94 | Φ198 |
| DPT25-76B | 662 | 570 | 401 | 300 | 365 | 94 | Φ250 |
| DPT25-76C | 732 | 640 | 401 | 340 | 380 | 61 | Φ250 |
| DPT25-86B | 732 | 640 | 401 | 340 | 380 | 61 | Φ250 |
performance:


| Model | Voltage | Speed | Power | Airflow | Static Pressure | Noise | Duct Diameter |
|---|---|---|---|---|---|---|---|
| (V/Hz) | (W) | (m³/h) | (Pa) | (dB) | Φ(mm) | ||
| DPT10-12B | 220-50 | / | 23 | 100 | 80 | 20 | 100 |
| DPT10-24B | 220-50 | H/L | 30/23 | 200/150 | 125/100 | 23 | 100 |
| DPT15-32B | 220-50 | H/L | 42/33 | 360/250 | 160/120 | 27 | 150 |
| DPT15-42B | 220-50 | H/L | 103/88 | 500/400 | 190/165 | 29 | 150 |
| DPT20-54B | 220-50 | H/L | 114/101 | 770/600 | 200/195 | 35 | 200 |
| DPT20-54C | 220-50 | H/L | 174/146 | 920/800 | 240/220 | 37 | 200 |
| DPT20-65B | 220-50 | H/L | 253/210 | 1200/1000 | 360/320 | 41 | 200 |
| DPT25-76B | 220-50 | H/L | 535/480 | 1700/1500 | 420/410 | 43 | 250 |
| DPT25-76C | 220-50 | H/L | 565/500 | 1900/1800 | 430/425 | 46 | 250 |
| DPT25-86B | 220-50 | H/L | 800/728 | 2600/2400 | 530/510 | 46 | 250 |
- Global shipping: Free Shipping, Delivered within 7–15 days
- International Returns: Return by mail within 30 days
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