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Positive Displacement PD Flowmeters

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					POSITIVE DISPLACEMENT FLOWMETERS
               FTB3001
        $
          2972All Models




   Patented Toothless
   Oval Gear Design
   High Accuracy
   Compact Design
   High-Resolution
   Electronic Output
   Temperatures to 176°C (350°F)
   Pressure Rated to 3000 psig
   Multiple Bearing Options
   316 Stainless Steel
   Construction
   No Special Gears Needed
   for High Viscosity
   Linearity Unaffected by
   Viscosity Changes
   1 MNPT End Fitting
   150 or 300# Flange
                                                  FTB3002, $2972, shown
   Fittings Available                             smaller than actual size.
                                                                                           Toothless Gears
The oval-shaped smooth gears in                                                            As shown below, the oval-shaped
                                                                                           toothless gears sweep out a
the FTB-3000 Series are used to                                                            precisely known volume of fluid
displace a precise volume of fluid,                                                        passing through the measurement
which is passed through the               The fluid is displaced from the inlet
                                          to the outlet via the area between               chamber during each rotation.
measurement chamber during each
revolution. The toothless design,         the smooth oval gear and the inner
working with the fluid being measured,    diameter of the meter housing.
provides a complete viscous seal          Conventional oval gears have teeth
within the measuring chamber. This        that mesh. One of the advantages
sealing effect provides for greater       of smooth oval gears is that the
flow measurement accuracy.                viscous flow does not get trapped
The displacement of the fluid is          or squeezed between the gears.
translated via a magnetic or Hall         Typically, oval gears need to have
effect pick-up into a pulse output that   cuts made in the teeth to allow high
is proportional to the flow.              viscosity fluids to pass. These cuts
                                          result in a decrease in accuracy.
The unique design of the FTB-3000
oval gear meter incorporates two                                        AVAILABLE FOR FAST DELIVERY!
smooth (toothless) oval gears
positioned 90 degrees out of phase.         To Order (Specify Model Number)
The measurement gears are held             Model No.           Price           Flow Rate            Sensor
together by two timing gears. The          FTB3001            $2972            2 to 25 GPM          Magnetic pick-up
standard meter contains no seal
between the measurement chamber            FTB3002             2972            0.02 to 25 GPM       Hall effect, 6 to 24 Vdc
and the timing chamber. The timing        Accessories
gears have a pitch diameter equal          Model No.                   Price       Description
to the outside diameter of the
                                           U24Y101                     $169        24 Vdc power supply
measurement gears. The flow
through the meter measurement              CM-0498                      100        Reference Book: Viscous Flow
chamber follows the path of least         Comes complete with operator’s manual and 10-point NIST calibration certificate.
resistance. Therefore, no liquid          To order with flange fittings, consult Flow Engineering.
passes through the center cavity          Ordering Examples: FTB3002, hall effect sensor, $2972.
between the measurement gears.            FTB3001, magnetic pick-up sensor, $2972.
                                                             F-83
FOR HIGH VISCOSITY FLUIDS
GREATER THAN 100 CENTISTOKES
                                Test Results from Independent Lab
                                             FTB3000 Δ P vs. Flowrate
                   80.0
                          Pressure Drop: DP=Rate* (1.15 + (0.0017) *Viscosity)
                   70.0
                          Rate = GPM          Viscosity = Centistokes
                   60.0

                   50.0
              ΔP




                   40.0


                   30.0


                   20.0


                   10.0

                    0.0
                           2        5         8                 11            14          17               20   23            25
                                                                         Flowrate (GPM)                                                       F
                                                              100 cstk         500 cstk        1000 cstk




                                                                                                                        Dimensions: mm (in)




SPECIFICATIONS                                             112.5
                                                           (4.43)
Service Fluid: Clean liquids,
                                                  151.6
max particle size 3.175 mm (0.125")               (5.97)
                                             Depending on
Accuracy: ±0.25% of reading                   Coil Selectd

Viscosity: 100 cSt or greater
Repeatability: ±0.05%
Operating Temperature:
   FTB3001: -240 to 176°C (-400 to 350°F)
   FTB3002: -40 to 150°C (-40 to 302°F)
                                                                                           177
Operating Pressure:                                                                       (7.00)
3000 psig standard                                                                                              1 MNPT
                                                                                                                END FITTING
Wetted Parts: 316 SS body and                                                                                   BOTH ENDS
gears with PEEKTM gear seats
Bearings: Shielded, self-lubricating              120.6
                                                  (4.75)
440 SS ball bearings
Connections: 1 MNPT
Pick Up Coil: Magnetic type or
Hall Effect (6 to 24 Vdc power)
Calibration: Ten-point calibration
traceable to NIST @ 100 centistokes
Weight: 7.53 kg (16.6 lb)



                                                                           F-84
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) |                          info@omega.com

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