Application:
TG-G1.6/2.5/4.0 Outdoor Diaphragm Gas Meter are positive diaphragm meters within the meter there are two chambers formed by movable diaphragms. With the gas flow directed by internal valves, the chambers alternately fill and expel gas, producing a near continuous flow through the meter. As the diaphragms expand and contract, levers connected to cranks convert the linear motion of the diaphragms into rotary motion of a crank shaft which serves as the primary flow element. TG-G1.6/2.5/4.0 Outdoor Diaphragm Gas Meter comply with requirement provision in GB/T6968-1997 Diaphragm Type Gas Meter.
Technic data:
|
Item
|
Unit
|
Mode
|
|
G1.6(S)D
|
G2.5(S)D
|
G4(S)D
|
G2.5(S) DW
|
|
Nominal flow-rate
|
m3/h
|
1.6
|
2.5
|
4
|
2.5
|
|
Max. flow-rate
|
m3/h
|
2.5
|
4
|
6
|
6
|
|
Min. flow-rate
|
m3/h
|
0.016
|
0.025
|
0.04
|
0.016
|
|
Total pressure loss
|
Pa
|
≤200
|
≤200
|
|
Operation pressure range
|
kPa
|
0.5~50
|
0.5~50
|
|
Cyclic volume
|
dm3
|
1.2
|
1.2
|
|
Permissible error
|
Qmin≤Q< 0.1 Qmax
|
±3%
|
±3%
|
|
0.1Qmax≤Q≤ Qmax
|
±1.5%
|
±1.5%
|
|
Min. recording reading
|
dm3
|
0.2
|
0.2
|
|
Max. recording reading
|
m3
|
99999.999
|
99999.999
|
|
Working temperature
|
°C
|
-10~+40
|
-10~+40
|
|
Storage temperature
|
°C
|
-20~+50
|
-20~+50
|
|
Service life
|
Year
|
5
|
5
|
|
Connection thread
|
|
M30×2
|
M30×2
|
|
Central distance
|
mm
|
110mm or 130mm or by customer
|
|
|
Weight
|
kg
|
2.00
|
2.00
|
|
Outside casing
|
|
Quality steel case
|
Quality steel case
|
|
Mode
|
Installation size (mm)
|
|
H
|
W
|
D
|
E
|
A
|
|
G(S)D
|
225
|
205.6
|
171.5
|
70
|
130
|
|
G2.5(S) DW
|
225
|
205.6
|
171.5
|
70
|
130
|
