Turbine Flowmeters with Economical Ball Bearing Design

FTB-100 Series

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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

Medidores de Vazão tipo Turbina e tipo Rotor - Ver Produtos Relacionados

Descrição

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)
Model No.	Fittings	LPM	GPM	Max Operating Pressure	Max Pressure Drop	Length mm (in)	Nominal K-Factor Pulses/Gal	Weight kg (lb)
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)