Duct Cleaning Tools – Vacuum Test Pump
The duct cleanliness vacuum test pump comes with a protective waterproof plastic carry case, flow meter, shoulder strap, battery charger, magnetic template and small screwdriver. The 10 x 10cm magnetic template for PVT testing method is supplied in accordance with TR19 and BSEN15780, this is flexible to allow easy use in circular ductwork. The shoulder strap allows easy use if working from a ladder and makes carrying the pump easier. The test pump contains lithium Ion batteries which deliver consistent power, this means pump performance does not drop off as battery level decreases.
The preferred vacuum test method is advised in BS15780 as well as TR19 as the most suitable method for post clean verification of HVAC systems. The pump is used to perform preferred vacuum tests with a vacuum test capsule. The capsule is then sent in to an independent laboratory for weighing and analysis. Capsules are sold separately to the vacuum test pump. PVT sampling is also used for HVAC system inspection to assess whether cleaning is required. All capsules should be sent off to a laboratory along with an analysis request form which will detail the project details for the laboratory.
The flow meter supplied with the duct cleanliness vacuum test pump should be used to calibrate the pump before each use. The pump should draw 15L/min of air through the PVT capsule to comply with BS15780 testing procedure. Testing procedure is detailed in the BS15780 standard, this document is available to purchase from BSI here.