G1.6L, G2.5L(Aluminum Case) Diaphragm Gas Meters are type of displacement gas volume meters, which are applicable to meter the flow rate of combustion gases like natural gas, liquefied petroleum gas (LPG), marsh gas and coal gas, and their technical performance complies with the specification of Grade1.5 inGB/T 6968-2011 Diaphragm Gas Meters.
High sensitivity, accurate measuring, stable performance, safe and reliable operation; the Case is made of die-casting high-class aluminum alloy with plastic spray surface protection providing excellent anti-corrosive performance; adopt rotating sliding valve for the upper portion of meter movement and is designed with anti-backward device; adopt rubber sealing element with excellent air tightness.
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Type & specification
/Technical data
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G1.6L
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G2.5L
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Max. flow rate (m3/h)
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2.5
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4
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Min. flow rate (m3/h)
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0.016
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0.025
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Overload flow rate (m3/h)
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3.0
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4.8
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Startup flow rate (dm3/h)
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3
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5
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Max. operating pressure (kPa)
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≤ 30 (see nameplate for details)
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Total pressure loss (Pa)
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≤200
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Air tightness (kPa)
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1.5pmax
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Rated cyclic volume of a gas volume meter (dm3)
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0.9
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Accuracy class
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Class 1.5
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Error limit of reading (%)
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qmin≤q＜qt ±3; qt≤q≤qmax ±1.5
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Temp. under operating condition (℃)
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-10~+40
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Max. integrating value (m3)
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99999.999
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Center distance of pipe connector (mm)
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130
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Thread of pipe connector (mm)
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M30×2
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Weight (kg)
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1.7
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Error curve
□ It is suitable for installing at non-combustible structure and indoor place with good ventilation
□ It is prohibited to install at bedroom, bathroom and the place stored with dangerous goods and flammables, or somewhere similar to the aforesaid.
□ The installation of gas meter should satisfy the requirements of meter reading, repairing, maintenance and safety operation.
Ordering information
The type, specification, quantity and name of the ordered product shall be provided when ordering.
CHINESE
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