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This orifice plate is an accessory to the duct leakage in order to have a low flow range.
Read moreThis 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.
| Miscellaneous | |
|---|---|
| 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) |
