Features:
- Upper case and lower case made by high quality die cast aluminum-alloy.
- Surface spray-paint protects from corrosion.
- Use high-quality bakelite rotary valve.
- Diaphragm made by advance gluing and vulcanization process.
- Aluminum case can be recycled, environmental-friendly.
- Broad metrological performance: G1.6A, G2.5A, G4A.
- High accuracy, long service life with reliability.
- Lower noise.
- AMR optional.
- MTC optional.
Aluminum gas meter
The diaphragm gas meter is to use the differential pressure principle between inlet and outlet to impulse the diaphragms in the diaphragm boxes to do the to-and-fro movement. When the gas flow rate enters into the meter, it first is full of the space inside of the meter housings, from the rotary valve mouths due to the differential pressure, the gas will alternately enter into the different diaphragm boxes and realize the diaphragm boxes alternately charge and discharge. The movement of the rotary valve is transferred to the driving gear via the transmission mechanism and accumulates, the gas volume through the meter to index counter by the ratio calibration gears to realize the metrology of the gas meter.
With designing of independent measuring unit structure and high quality die cast aluminum-alloy case, the product has accuracy and reliability measurement under 150 Kpa operation pressure. Designing and producing meticulously, test strictly for GA serials gas meter which suitable for NG, LPG, Town gas, marsh gas measuring.
Typical regulation curve Pressure absorption
Technical characteristics:
Item | Unit | G1.6A | G2.5A | G4A | |
Nominal flow-rate | m3/h | 1.6 | 2.5 | 4 | |
Max flow-rate(Qmax) | m3/h | 2.5 | 4 | 6 | |
Min flow-rate(Qmin) | m3/h | 0.016 | 0.025 | 0.040 | |
Shell | Aluminum | ||||
Centre distance | mm | 130(110) | |||
Total pressure absorption | Pa | <200 | |||
Max working pressure | kPa / bar | 150 / 1.5 | |||
Cyclic volume | dm3 | 1.2 | |||
Error | Qmin≤Q<0.1Qmax | % | ±3 | ||
0.1Qmax≤Q≤Qmax | % | ±1.5 | |||
Min recording readings | dm3 | 0.2 | |||
Max recording readings | m3 | 99999.999 | |||
Operation ambient temperature | ℃ | -25～+55 | |||
Storage temperature | ℃ | -30～+60 | |||
Connection threads | M30×2; 3/4"BSP; G1 1/4"( By customized) | ||||
Dimensions:
Model | H | W | D | E | A | Weight |
G1.6A、G2.5A、G4A | 224mm | 215mm | 74mm | 175mm | 130(110)mm | 1.8Kgs |
