Gas Meters – Reliable Measurement Devices for Natural Gas Consumption

14 Mar 2026
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G25 diaphragm meter is completely acquired by the standard of OIML R31:1995. Its high quality such as wide range of flow rate, high sensitivity, stable performance, good-looking appearance, high safety and long using periods makes it widely used in metrology region of gas, natural gas and liquid petroleum gas etc.

Main structure feature:

Wide range of flow rate, high sensitivity and stable accuracy

High intensity shell and anticorrosive coating

New technique producing diaphragm makes accrual metrology performance possible

Magnet kinematical transmission keep excellent sealing

Screw tightening of upper case and lower case makes maintenance simple and convenient

Electrostatic plastics powder coating of upper and lower case form pure excellent appearance of meters with high burnish and anticorrosive ability

Specification： G25
Items		Capacity performance
qn (m3/h)		25
qmax (m3/h)		40
qmin (m3/h)		0.25
Basic Error	0.1qmax≤q≤qmax	±1.5%
	qmin≤q < 0.1qmax	±3%
Working Pressure kPa		0.5~50
Pressure Loss Pa		≤300
Cycle volume dm3		20
Maximum Index m3		999999.99
Minimum Index dm3		2
Working Temperature oC		-20 ~ +50 oC
Weight kg		15
Average Using Periods year		12