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Turbine Flowmeters with Economical Ball Bearing Design
FTB-100 Series
PLACE ORDER - NIST Certificate Included for Water
- ±1/2% Rdg Accuracy
- Non-Metallic Bearing Retainers for Long Life
- Replacement Bearings Field Installable Without Loss of Calibration
- Disassembles Quickly for Easy Maintenance
- Deflector Cones Stabilize Low Mass Rotor for Increased Bearing Life
- 4 to 20 mA, 0-5 V, and Scaled Frequency Outputs Available
Description
Description
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 minimize 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 minimize 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 hook-up.
SPECIFICATIONS
Accuracy: ±½% of reading
Repeatability: ±0.1% of reading
Maximum Temperature Range: -268 to 232°C (-450 to 450°F)
Maximum Intermittent Overrange: 150% of maximum range
Minimum Output Amplitude: 30 mV Peak-to-Peak Unscaled Pulse
Materials of Construction:
Body: 304 stainless steel; 1/2 NPT bodies contain Silver Solder. 3/4 NPT and larger are welded.
Rotor: 17-4 pH steel
Bearings: Ceramic
Minimum straight pipe requirements: 10 pipe diameters upstream, 5 downstream
| Model No. | Fittings | Linear Flow Range
Water | Max Operating Pressure | Max Pressure Drop | Length
mm (in) | Nominal
K-Factor
Pulses/Gal | Weight
kg (lb) |
| LPM | GPM |
| FTB-101 | ½ MNPT | 1.32 to 13.2 | 0.35 to 3.5 | 5000 psig | 3.0 psid | 62 (2.45) | 13,000 | 0.4 (1) |
| FTB-102 | ½ MNPT | 2.84 to 28.4 | 0.75 to 7.5 | 5000 psig | 5.0 psid | 62 (2.45) | 10,000 | 0.4 (1) |
| FTB-103 | ½ MNPT | 4.73 to 36 | 1.25 to 9.5 | 5000 psig | 5.2 psid | 62 (2.45) | 6,000 | 0.4 (1) |
| FTB-104 | ¾ MNPT | 6.62 to 61 | 1.75 to 16 | 5000 psig | 3.0 psid | 70 (2.75) | 4,100 | 0.4 (1) |
| FTB-105 | ¾ MNPT | 9.5 to 110 | 2.5 to 29 | 4250 psig | 5.0 psid | 83 (3.25) | 2,200 | 0.4 (1) |
| FTB-106 | 1 MNPT | 15 to 227 | 4 to 60 | 3850 psig | 5.1 psid | 89 (3.5) | 640 | 0.9 (2) |
| FTB-107 | 1¼ MNPT | 23 to 352 | 6 to 93 | 3850 psig | 4.3 psid | 99 (3.88) | 410 | 0.9 (2) |
| FTB-108 | 1½ MNPT | 30 to 492 | 8 to 130 | 3000 psig | 3.0 psid | 111 (4.38) | 230 | 1.4 (3) |
| FTB-109 | 2 MNPT | 57 to 852 | 15 to 225 | 2500 psig | 3.3 psid | 121 (4.75) | 120 | 1.8 (4) |
| FTB-110 | 2½ MNPT | 95 to 1514 | 25 to 400 | 2250 psig | 4.0 psid | 154 (6.06) | 62 | 2.3 (5) |
| FTB-111 | 3 MNPT | 151 to 2460 | 40 to 650 | 2000 psig | 4.0 psid | 191 (7.50) | 55 | 3.2 (7) |
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