Wide-range Diaphragm Gas Meter

Two-pipe, wide-range (0.016m3/h to 6m3/h), accurate and stability

This diaphragm gas meter is featured with wide metering range, precise measurement and high reliability. High measuring range lead to the precise metering results. The external case can be made of powder-coated galvanized steel or die-casting aluminum made the diaphragm gas meter resistant to corrosion and hig-quality diaphragms result in long life stability- up to 25 years. This gas meter can be used for measuring various gas media like natural gas, town gas, liguid gas, LPG, biogas, methane gas, etc.

The integrated calibration system plays a major role in coordinating the optimum gas flow. Even at low flow rates, the gas meter still can do a excellent job with accurate measurement.

This diaphragm gas meter is resistant to contamination with stability of Qmin value thanks to the optimum sliding characteristics of the valves.

Our WG2.5S diaphragm gas meter meets GB/T5968-1997, EN1359:1998/A1:2006, 0IML R31:1995 standard requirement.

Features
  • Approved in accordance with MID by NMI;
  • Low total pressure loss, below 160Pa under 6m3/h
  • Fire retardant up to 0.1 bar
  • Initial flow rate less than 3dm³/h;
  • Wide range of working temperature, in between -25℃～55℃
  • Operating pressure: 0.5bar
  • Retrofittable with pulser
  • Optional: reverse flow preventer
Error Curve
Wide-range Diaphragm Gas Meter
Technical data
Type WG2.5S
Nominal flowrate Qn m3/h 2.5
Maximum flowrate Qmax m³/h 6
Minimum flowrate Qmin m3/h 0.016
Maximum operating pressure bar 0.5
Maximum permissible errors Qt ≤ Q ≤ 0.1 Qmax Qmin ≤ Q < Qt ± 1.5% ± 3%
Max. pressure loss mbar ≤ 2
Display range max. m3/h 99999.9998
Display range min. m3/h 0.0002
Accuracy class class 1.5
Cyclic volume dm3 1.2
Pulse value m3/pulse 0.01
Weight kg 1.8
Wide-range Diaphragm Gas Meter
Dimensions Diaphragm
A [mm] 90 ± 0.50 110 ± 0.50 130 ± 0.50
B M30 x 2 - 6 g G¾B G⅞B G1B NPT ¾″ BS746 1″
C [mm] 226 218
We are Zenner Metering Technology (Shanghai) Ltd., a company that was established as a joint venture company with German Minol-Zenner Group, a global leading measuring equipment manufacturer as well as a major European energy service provider. Some of our main products include wide-range diaphragm gas meters, wide-range industrial gas meters, smart gas meters, GRPS/NB-IoT module smart gas meters, smart flow meters, and controllers.
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