Characteristics
1. Compact structure, big capacity of 1.2dm3 cyclic volume and
beautiful appearance.
2. Apply Hot-printed technology of international leading level on
register, which insures legible reading never fading.
3. Inside and outside of meter case is electro dusted, which
insures good appearance, moisture-proof, gas corrosion-resistant
and high Impact-resistant.
4. The measuring unit is made of Japanese Copolymerization of
formaldehyde M90-44 (POM), injected by Mitsubishi machine; the high
physicochemical properties, strong reliability, good
self-lubricating property and compactness surpass other similar
products remarkably.
5. The rubber diaphragm is made of Polyester fabric coated with
nitride synthetic rubber, passed more than 200 Million times of
Bally Test, oil-resistant change of mass is less than 65%, the
flexibility is less than 0.45g/cm, the low temperature type
diaphragm can work under -35°C ambient temperature. All
specifications comply with National standard and International
standard of OIML R311995.
6. The valve and vale seat are made of imported materials Z-41
Plastic pressure powder, which has been tested by foreign authority
that the vale never distorts, has perfectly anti-function and high
plainness after grind.
7. The material of register cover is Polycarbonate, which has
strong impact resistance and keep the bolt falls into the track to
withstand disassembly.
8. Special screw head and seal avoid illegal demolition.
9. Anti-reverse device completely prevents tampering.
10. The valve with 360°rotation has the ability to resist impurity
conglutinates and freezing, and has strong stability and agility;
and high accuracy of low discharge.
11. The upper case and lower case are pressed by a steel band under
a 40ton atmospheric pressure, which insures stability of sealing.
12. 1:1 gear on the transmission device insures the stability of
metrology
13. G2.5(S)DW has a Wide Range measuring: 0.016 m3/h～6 m3/h. 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 |
SPECIFICATION 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 | ℃ | -10~+40 | -10~+40 | Storage temperature | ℃ | -20~+50 | -20~+50 | Service life | Year | 10 | 10 | Connection thread | | M30×2 | M30×2 | Central distance | mm | 110mm or 130mm or by customer |
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