Testovent 417 Flow Straightener Set

The Testo Testovent 417 flow straightener set is your go-to for getting accurate volume flow readings, especially at those tricky swirl outlets. It's designed to help HVAC technicians, commissioning engineers, and anyone balancing ventilation systems get reliable data where turbulence usually makes it tough.

Anyone who's tried to measure airflow at a swirl diffuser knows it's a pain with just a vane anemometer. This kit sorts that out, delivering consistent readings even in highly turbulent air streams, which is key for optimising system performance.

Best For

• HVAC commissioning and balancing teams
• Service and maintenance technicians
• Ventilation system installers
• Auditing airflow in commercial buildings

Compatibility

This Testovent 417 set is designed specifically for use with compatible Testo vane anemometers (sold separately) to measure volume flow at:

• Swirl outlets and diffusers
• Round plate outlets (up to Ø 200 mm)
• Square ventilation grilles (up to 330 x 330 mm)

It works by converting turbulent airflow into a more uniform stream, allowing for accurate readings from your connected anemometer. If you're running a different model, check fittings and specs before ordering.

Features

• Patented Testovent 417 Flow Straightener: Uniquely designed to transform turbulent airflow from swirl outlets into a uniform flow, ensuring reliable measurements.
• Accurate Measurement: Enables precise volume flow readings even in highly turbulent air conditions, preventing errors caused by variable flow directions.
• Two Dedicated Funnels: Includes a round funnel (Ø 200 mm) for plate outlets and a square funnel (330 x 330 mm) for ventilation grilles.
• Convenient Transport: Supplied with a practical case to keep the straightener and funnels organised and protected on site.
• Enhanced Workflow: Simplifies the process of balancing ventilation systems by providing consistent and repeatable data at challenging measurement points.

Technical Specifications

What's in the Box

• Testovent 417 volume flow straightener
• Round funnel for plate outlets (Ø 200 mm)
• Square funnel for ventilation grilles (330 x 330 mm)
• Practical case
• Instructions for use for measuring with funnels
• Assembly instructions

Using It on the Job

1. Prepare Equipment: Ensure your compatible Testo vane anemometer (not included) is ready for use and calibrated.
2. Assemble Funnel: Attach the appropriate funnel (round for plate outlets, square for grilles) to the Testovent 417 flow straightener.
3. Connect Anemometer: Securely connect your vane anemometer to the flow straightener setup.
4. Position at Outlet: Place the assembled straightener and funnel firmly over the swirl outlet or grille where you need to measure volume flow.
5. Take Readings: Follow your anemometer's instructions to take consistent volume flow measurements. The straightener will ensure accurate readings despite turbulence.
6. Pack Away: After use, disassemble the components and store them safely in the practical case to protect them from damage.

Limitations & Safety Notes

• This set requires a compatible Testo vane anemometer for operation, which is sold separately.
• Designed specifically for volume flow measurement at swirl outlets, ventilation grilles, and plate outlets within the specified dimensions.
• Always follow the safety guidelines and operating instructions provided with your Testo anemometer and the flow straightener.
• Ensure the straightener and funnels are clean and free from obstructions for optimal performance.

Tradie Pro Tip

Even with a good flow straightener, always double-check your vane anemometer's zero point and calibration. Small errors in setup can throw out your whole system balance, especially when dealing with critical ventilation rates.

Pair With

Pair with a Testo 417 Vane Anemometer, other Testo airflow measurement tools, or a multi-function instrument for comprehensive HVAC system diagnostics and balancing work.