Low range plate for Duct leakage tester

Low range plate for Duct leakage tester

Orifice plate dia 19 mm

P/N: 770960 [View large]
This orifice plate is an accessory to the duct leakage in order to have a low flow range. The orifice plate is easily mounted in the existing measuring pipe on the leakage tester.
The hole of the orifice plate has a smaller diameter than the hole of the measuring pipe.


Flow overpressure :
Leakage tester with Ø100 mm hose
1,25...4 l/s at +400 Pa duct pressure
C class measuring area ... sqm at 400 Pa (EN 12237, 1507)

Flow underpressure :
Leakage tester with Ø100 mm hose
1..4,5 l/s at -400 Pa duct pressure
C class measuring area ... sqm at 400 Pa (EN 12237, 1507)

Measurement uncertainty :
0.3 l/s (when measuring with Swema 3000md + SWA 10)

Measurement uncertainty with 95% coverage probability for non-condensing, non-humid air, less than 80% Relative moisture, non-aggressive gases

Accesssory for:
Duct leakage tester P/N 771110 and 765902 (older version)



Swema AB, VAT.no. SE556052555101