Flowmeters, Flowmeter Devices, and Flow Measurement by Sponsler, Inc., A Unit of IDEX Corp

Gas Conversion and Sizing for Turbine Meters

Sizing a meter for gas requires a conversion of units to Actual Cubic Feet per Minute (ACFM). This can be easily done by following a three-step process. If you aleady have measurements in Standard Cubic Feet per Minute (SCFM), then please click here to by-pass the first step.

Please Note: All calculations are at sea level.

Step 1: Enter number of units and type of units to perform conversion to Standard Cubic Feet per Minute (SCFM).

Quantity	Units	SCFM




*Step 2:* Enter the derived SCFM units value along with your PSIG value and your temperature in °F as directed. This will calculate your ACFM units:
	SCFM =

	*PSIG =**

	degrees F =


	ACFM =


Automatic recalculation (changes calculations as variables change) *Automatically adds 14.696 Click here to see formula used in calculations.

Step 3: Choose the proper sizing from the chart provided based on ACFM.

NORMAL FLOW RANGE (ACFM) (MAGNETIC PICKUP)

METER SIZE	MINIMUM LINEAR	MAXIMUM LINEAR
1/4	0.35	3.5
3/8	0.75	5
1/2	1	10
5/8	2	20
3/4	2.5	28
1	4	60
1 1/4	6	100
1 1/2	8	130
2	15	250
2 1/2	25	450
3	40	650
4	75	1200
5	150	1800
6	250	2900
8	330	5000
10	650	7500
12	900	12000

If you have additional questions or your needs are not addressed by this application tool, then please contact Sponsler, Inc at 1-800-258-1165 or email us.

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