Delta QD meters are volumetric meters. The flow of gas moves the pistons and each rotation traps and transfers a specific vlume of gas.
The movement is mechaically transmitted to the totaliser.
Key Benefits
Flow Range | QD25 | 0.8 to 25 m3/h |
QD60 | 2 to 60 m3 /h | |
Accuracy | < +/-1,5% on the complete fl ow range | |
Starting Flow | QD25 | < 0.035 m3/h |
QD60 | < 0.035 m3/h | |
Maximum Operating Pressure | 16 bar | |
Temperature Range | Gas and ambient temperature: -30°C to +60°C | |
Storing Temperature | -40°C to +70°C | |
Pressure Loss at Maximum Flow (with gas: = 0.83Kg/m3) |
QD25 | 0.8 mbar |
QD60 | 4.1 mbar | |
Connections | Internal thread DN40 1”½ ISO 228 | |
Pressure Tappings | 4 tappings ¼ ” NPT at the inlet and outlet of the meter | |
Low Frequency Transmitter | Double low frequency transmitter type reed switch connected to a socket 6 pins following DIN45322. | |
Pulse Value | 0.01 m3/pulse. |