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Click here if you want to know more about flow meters.The FTB-100 Series of turbine meters have a sealed ball bearing design for high accuracy performance (±½% of reading, not full scale) at an economical cost. The non-metallic bearing retainers minimise friction, thereby allowing these meters to be used with clean fluids that have poor lubricating properties ( i.e.water). Ball bearings also give the widest linear flow range, particularly in larger turbines. Bearing replacement and clean-up are fast and easy, since all internal parts are easily accessible by removing a single nut. These turbine flowmeters have a low mass rotor design which allows rapid dynamic response, so they can be used in pulsating flow applications. Deflector cones eliminate downstream thrust on the rotor and allow hydrodynamic positioning of the rotor between the cones. This provides wider rangeability and longer bearing life than conventional turbine flowmeters. Integral flow-straightening tubes minimise the effects of upstream turbulence.
FTB-100 Turbine Meters are available with integral signal conditioners (as shown in photo) which provide scaled and
unscaled frequencies, 4-20 mA, or 0-5 volt outputs. Units without integral signal conditioners are supplied with mating
connector for two-wire connection.
Model |
Linear Flow Range (litres/min) |
NPT Fittings |
Max. Op. Pressure (Barg) |
Max. Pressure Drop (mBarD) |
Length (mm) |
Nom. K Factor Pulses/litre |
---|---|---|---|---|---|---|
FTB-101 |
1.3 to 13.2 |
½" |
344 |
207 |
62 |
3430 |
FTB-102 |
2.8 to 28.4 |
½" |
344 |
345 |
62 |
2640 |
FTB-103 |
4.7 to 36 |
½" |
344 |
359 |
62 |
1580 |
FTB-104 |
6.6 to 60 |
¾" |
344 |
207 |
70 |
1080 |
FTB-105 |
9.5 to 110 |
¾" |
293 |
345 |
83 |
580 |
FTB-106 |
15 to 227 |
1" |
265 |
352 |
89 |
170 |
FTB-107 |
23 to 352 |
1¼" |
265 |
297 |
99 |
110 |
FTB-108 |
30 to 492 |
1½" |
206 |
207 |
111 |
60 |
FTB-109 |
57 to 850 |
2" |
172 |
228 |
121 |
32 |
FTB-110 |
95 to 1514 |
2½" |
155 |
276 |
154 |
16 |
FTB-111 |
151 to 2460 |
3" |
137 |
276 |
191 |
14 |
Specifications
Accuracy: ±½% of reading
Repeatability: ±0.1% of reading
Maximum Temperature Range: -268 to +232°C
Maximum Intermittent Overrange: 150% of maximum range
Minimum Output Amplitude: 30 mV
peak-to-peak unscaled pulse
Materials of Construction:
Body: 304 stainless steel
½" NPT bodies contain Silver Solder.
¾" NPT and larger are welded.
Rotor: 17-4 pH steel
Bearings: 440C stainless steel
Minimum straight pipe requirements:
10 pipe diameters upstream, 5 downstream.
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