Duct-leakage testing

Sensing Precision, Airflow S P, duct leakage test, DW143, DW144, DW/143, DW/144

This ductwork leakage tester for the HVAC market can test ductwork in accordance with DW/143 and DW/144 for pressure classes A to D. called Air Leakage Finder 150 (ALF150) it has been developed by Sensing Precision (formerly Airflow S P).

ALF150 can develop static pressure from -2500 to +2500 Pa and flow rates from 1 to 150 l/s — giving around 140 l/s for Class A and up to 70 l/s for Class C/D tests.

Supplied with three easy-to-change conical inlet nozzles with diameters of 15, 35 and 65 mm. the equipment is designed in accordance with ISO 5801:2007 to give an accurate flow reading from a primary device.

The instrument supplied with ALF150 has been specifically designed for the task and tailored to control the fan speed while displaying leakage rate and static pressure. Ease of use has been maintained, along with a retro feel to provide a simple upgrade path form the ubiquitous duct-leakage testers of the past, which used multiple conical outlets and are seen as the mainstay in the sector for the last few decades.

For more information on this story, click here: Dec 2014, 175
Related links:
Related articles:

modbs tv logo

Construction growth eases to three-month low in December

December PMI® data pointed to another solid increase in business activity across the UK construction sector, but the rate of expansion slipped to its lowest since September.

Winners Announced in 2021 CSA Awards Programme

Having been forced to withdraw from staging its annual awards dinner and presentation ceremony last year, due to the disruption caused by the COVID-19 pandemic, the Commissioning Specialists Association was delighted to finally stage the event on the evening of Thursday 11th November 2021.