Mid range plate for Duct leakage tester

Mid range plate for Duct leakage tester

Orifice plate dia 38mm

P/N: 770970 [View large]
This orifice plate is an accessory to the duct leakage tester in order to have a mid 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
4...34 l/s at +400 Pa duct pressure
C class measuring area 28...230 sqm at 400 Pa (EN 12237, 1507)
6...29 l/s at +850 Pa duct pressure

Flow underpressure :
Leakage tester with Ø100 mm hose
3...33 l/s at -400 Pa duct pressure
C class measuring area 21...220 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