SKU: 0554 4172
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The Testovent 417 Volume Flow Straightener (0554 4172) is a precision-engineered accessory designed to ensure accurate, swirl-independent air volume flow measurement at ventilation outlets. When used with the Testo 417 vane anemometer, Testovent 417 funnel set (0563 4170), or Ø100 mm vane probes (such as 0635 9435, 0635 9343, and 0635 9340), this innovative flow rectifier provides consistent and reliable results — even at challenging swirl outlets.
As the only solution of its kind, the Testovent 417 straightener from Testo eliminates measurement errors caused by turbulent or swirling airflow, redirecting it into a uniform, laminar flow pattern. This enables the vane probe to measure airflow more accurately and efficiently, ensuring trustworthy volume flow readings every time.
The straightener can also be retrofitted to existing Testovent funnel sets, making it a cost-effective upgrade for professionals who already use Testo volume flow measurement systems.
| Parameter | Specification |
|---|---|
| Product No. | 0554 4172 |
| Application | Air volume flow measurement at swirl outlets |
| Compatible Devices | Testo 417 vane anemometer, Testovent 417 funnel set, Ø100 mm vane probes (0635 9435, 0635 9343, 0635 9340) |
| Volume Flow Range | 0.1 to +200 m³/h (preferred 0.1 to +100 m³/h) |
| Operating Temperature | 0 to +50 °C |
| Dimensions | 370 × 190 × 210 mm |
| Weight | 554 g |
| Material | PA66 + GF30% (high-strength glass-fiber reinforced nylon) |
| Product Colour | Black/Grey |
Example application measurement of volume flow at swirl outlets
Data sheet testo 480
Data sheet testo 435
Product brochure testo 417
Instruction manual testo 480
Instruction manual testo 435. -1. -2. -3. -4
Instruction manual Flow straightener testovent 417
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