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mechanical type temperature compensation gas meter
mechanical type temperature compensation gas meter

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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

 

 

 

 

 

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