Accurate measurement and high sensitivity.
Lowest working temp. : -30 Centigrade
Corrosion resistance and long service life
APPLICATION
JW series mechanical type temperature compensation gas meter is suitable for measuring the flow-rates of town gas, natural gas, marsh gas, liquefied petroleum gas and air etc.
FEATURES
1. Accurate measurement and high sensitivity.
2. Adopting rubber diaphragm with performance of low temperature-resistance. The lowest working temperature can reach -30°C.
3. With internal mechanical type temperature compensation mechanism and this can compensate the measurement error of the gas meter results from temperature changes.
4. Adopting a series of new manufacturing technology such as automatic glue-applying technology, ultrasonic welding technology and resistance welding technology etc.
5. Adopting special surface treatment technology, it has strong corrosion resistance and long service life.
Item |
Unit | Model | |||||
JWJ1.6C | JWJ2.5C | JWJ4C | |||||
Nominal flow-rate(Qn) | m3/h | 1.6 | 2.5 | 4 | |||
Maximum flow-rate(Qmax) | m3/h | 2.5 | 4 | 6 | |||
Minimum flow-rate(Qmin) | m3/h | 0.016 | 0.025 | 0.040 | |||
Working pressure range | kPa | 0.5-30 | |||||
Working environment temperature | °C | -30~50 | |||||
Average value of total pressure loss | Pa | ≤200 | |||||
endurance | h | 2000 | |||||
Maximum permissible error | 15°C≤t≤25°C | Qmin≤Q<0.1Qmax | % | ±3.5 | |||
0.1Qmax≤Q≤Qmax | % | ±2 | |||||
t<15°C or t.>25°C | Qmin≤Q<0.1Qmax | % | ±4 | ||||
0.1Qmax≤Q≤Qmax | % | ±2.5 | |||||
Max cumulative reading figures | m3 | 9999 | 99999 | ||||
Weight | kg | 1.8 | |||||
Meter fittings joint threading |
| M30×2 | |||||
Meter fittings central distance | mm | 130 |