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Test bench with sonic nozzles for residential gas meters
Test bench with sonic nozzles for residential gas metersSZKD G1,6 – G6
Test benches with sonic nozzles for residential gas meters SZKD are used for verification of residential gas meters size G1,6 ÷ G25. Complete testing bench includes two lines (arms) with 5 fixing places of gas meters on each line. If the needs of capacity are lower, it is possible to deliver test bench with only line.
Test benches are equipped with a exchangeable jig with a set of sonic nozzles consisting of 3 sonic nozzles for flow-rates Qmax, 0,2 Qmax and Qmin for one size of gas meters. When testing any other size of gas meters, it is very simple to change the set of nozzles. The testing bench is operated by one operator controlling all functions through computer. The whole testing process is shown on the screen of the monitor, where all actual values and parameters can be seen and recorded. Software running under operation system Windows  98 enables to use various functions of statistical evaluations, saving data and recording (print) the report about the test.

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22-002_test_benches_with_sonic_nozzles_for_residential_gas_meters_type_szkd_en.pdf test benches with sonic nozzles for residential gas meters type szkd en.pdf [462,99 kB]

Type of testing benchSZKD G 1,6 – G 6
Measuring range0,015 to 10 m3/h
Wide-spread uncertainty of critical (sonic) nozzlesWide-spread uncertainty of critical (sonic) nozzles Better than U=0,25%(kU =2) from messured valu
Testing medium Atmosferic air
Temperature range of testing lines (arms)(from 18 up to 25) °C messured by room temperature
CapacityUp to 250 gasmeters in one shift
Total dimension(3200 x 1970 x 2400) mm
Master meter part (1250 x 1970 x 650) mm
Testing line (arm) (5 testing places)(2000 x 1800 x 600) mm
Weight 500 kg
Pressed-air-consumption in case own ejectors for vacuum will be usedUp to 3 m /hour by over-pressure (0,5 to 0,8) MPa
Elektric supply 230 V; 1,5 kW, (fuse 16A)