JC series gas meters are suitable for measuring flow-rate of town gas,natural gas,marsh gas and liquefied petroleum gas etc..
Features
1.Accurate measurement and high sensitivity. 2.Rubber diaphragm adopts special material and it has good durability. 3.Adopting automatic glue applying technology and it has good leak tightness. 4.Adopting surface electrophoretic coating treatment technology and it has strong corrosion resistance and long service life. 5.The sliding valve makes rotary motion, there is regular friction and even wearing between the sliding valve and the seat of the sliding valve.
Executing Standard
The products execute GB/T 6968-1997 diaphragm gas meter Grade B standard and JJG 577-2005 diaphragm gas meter standard and OIML R31-1995 diaphragm gas meter international standard,main technical index listed below is the actual inspection standard for meters to leave the factory.
Item |
Unit |
Parameter |
Nominal flow-rate(Qn) |
m³/h |
2.5 |
Maximum flow-rate(Qmax) |
m³/h |
4 |
Minimum flow-rate(Qmin) |
m³/h |
0.016 |
Working pressure range |
kPa |
0.5-30 |
Working environment temperature |
℃ |
-20-50 |
Average value of total pressure loss |
Pa |
≤160 |
Permissble error |
Qmin ≤Q0.1Qmax |
% |
±3 |
0.1Qmax≤Q≤Qmax |
% |
±1.5(可达±1.0) |
Max cumulative reading figures |
m³ |
9999 |
Weight |
kg |
1.8 |
Meter fittings joint threading |
|
M30×2 |
Meter fittings central distance |
mm |
130 |
endurance |
h |
2000 |
Dimension:
A(mm) |
B(mm) |
C(mm) |
D(mm |
E(mm) |
M(mm) |
重量(kg) |
130 |
201 |
225 |
165 |
68.5 |
G2″ |
1.8 |
|