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Ball Bearing Gas Turbine Flow meters with Male NPT Fittings


Ball Bearing Gas Turbine Flow meters with Male NPT Fittings | FTB-930

Ball Bearing Gas Turbine Flow meters with Male NPT Fittings

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  • ±1% of Reading Accuracy
  • Ball Bearing Design for Economy
  • 440C Bearing Retainers for Durability
  • Ball Bearings Field Replaceable Without Loss of Calibration
  • Deflector Cones Stabilize Low Mass Rotor for Increased Bearing Life
  • NIST Certificate Supplied Standard
Technical Reference - View related products


The FTB930/940 series has been discontinued. Please see the FTB1400 SERIES as a possible alternative or contact our Flow Engineering department.

The OMEGA™ FTB-930 & FTB-940 Series turbine meters have male NPT end fittings for easy connections. They are suitable for use with gases with a minimum density of 0.025 lb/ft 3 (air at STP is 0.0752 lb/ft 3 ).These units come supplied with a mating 2-wire connector and can be supplied with integrally mounted FLSC-60 Series signal conditioners to provide 4-20 mA, 0-5 V, or amplified pulse outputs. These turbine gas meters are intended for clean service only; where there is any doubt about the fluid, strainers are recommended.

OMEGA™ precision turbine gas flowmeters are designed to measure actual cubic feet or actual volume passing through the meter. Before sizing a flowmeter, it is necessary to convert flow units (i.e., SCFM, LPM, etc.) to actual units. To convert to actual measured volume (ACFM) from standard volume (SCFM), use the following formula:
ACFM = SCFM x 14.7/Pa x Ta/530
ACFM = Actual cubic feet per minute of measured gas flow
SCFM = Standard cubic feet per minute gas flow
Pa = Operating pressure (psia) in = (psig + 14.7)
Ta = Temperature in degrees, Rankine = (°F + 460)

Accuracy: ±1.0% of reading
Repeatability: ±0.25%
Materials of Construction:
Body: 304/316 stainless steel
Rotor: 17-4 PH SS
Bearings: 440C stainless steel
Output: 30 mV p-p sinewave min.
(Specify Model Number)

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Part Number/Desc.
Consult Sales  
75-1200 ACFM Range; End Connections 4 MNPT (in)
Signal Conditioners (Order as a System for factory Scaling on FLSC-61 and FLSC-62, For Example: SYS/FTB-931/FLSC-62)
Consult Sales  
Regulated power supply, US plug, 90-264 Vac input, 24 Vdc output, 400 mA, screw terminals, UL
All prices on this site are shown in Philippine Pesos.
Note: Comes complete with operator’s manual and NIST Certificate for air.

To order turbine meters with integral signal conditioners, specify model as a system such as : SYS/FTB-932/FLSC-62A. Omega will scale the signal conditioner with the appropriate calibration information from the turbine meter specified.

No other calibrations are available.

Compatible Meters: DPF701, DPF402, DPF70 with FLSC-AMP, DPF10, DPF500, FC20, 21, 22

Contact Flow Engineering Dept

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