// Medidor a Turbina - LÍnea - LÍquidos

FT Series Turbine Flowmeters for Liquid Applications Description Flow Technology’s FT Series turbine flowmeters utilize a proven flow measurement technology to provide exceptionally reliable digital outputs. Because of their versatility, these flowmeters are the solution for a wide variety of liquid flow sensing applications. FT Series turbine flowmeters, which range in size from 3/8 inch to 4 inches, offer a high turndown capability, repeatability of ±0.05% of reading, and excellent speed of response. The precision, axial-mounted rotor design of the standard turbine flowmeter allows it to operate effectively in flow rates from 0.03 to 1,500 GPM, with the linearity rated at ±0.5% of reading over the normal 10:1 turn-down range. All turbine flowmeters can achieve ±0.1% linearity over the full operating range with linearizing electronics. Typical operating pressures for the standard meters are 5,000 PSIG with custom configurations capable of 30,000 PSIG. A choice of construction materials can be specified for the turbine flowmeter’s housing, rotor, bearings and shaft, including standard stainless steel, and exotic materials for specialized applications. Features

• Linearity < 0.10% with linearizing electronics
• High turn-down capability, up to 100:1.
• Excellent repeatability, less than +/- 0.05%.
• Typical response time 3-4mS
• Extensive primary standard NIST traceable calibration capability, offering a wide range of fluids, viscosities and flow rates. Accuracy less than +/-0.05% typical
• Standard materials of construction are 316 SS housing and 430F SS rotor. Additional materials available.
• Robust, compact design capably of compliance to severe shock and vibration requirements.
• Standard pressure capabilities up to 5000 PSIG.
• Extreme operating pressures available in custom packages.
• High shock designs available for applications with large hydraulic water hammer effects.
• Custom designs to meet the specific application are routine, not the exception.

Specifications

Calibration accuracy ±0.05% of reading, traceable to NIST
Repeatability ±0.05% of reading
Linearity ±0.10% with linearizing electronics
Response time 3-4mS typical
Housing material 316 stainless steel, standard
Rotor material 430F stainless steel, standard
Temperature range -450 to 750°F, dependent on bearing and pick-off
Operating pressure Up to 30,000PSIG, dependent on fitting
Ball bearing material 440C stainless steel
Journal bearing material Ceramic, tungsten carbide, graphite
Pick-off’s Modulated carrier and magnetic
Straight Run 10D upstream and 5D downstream minimum
Recommended filtration Ball bearings: 10 to 100 microns (less filtration with larger sizes)
Journal bearings: 75 to 100 microns

FT Meter Sizing and End Fittings

HS Series High Shock Turbine Flowmeters Description Flow Technology’s High Shock turbine flowmeters utilize a proven flow measurement technology to provide exceptionally reliable digital outputs. Because of their versatility, these flowmeters are the solution for a wide variety of liquid flow sensing applications. The High Shock flowmeter is specifically designed to withstand pressure spikes that create hydraulic shock waves in the fluid when actuators or rams are activated. The downstream end of the meter’s housing has a small step, rather than a retaining ring, which prevents internal components from being pushed through by hydraulic shock. The upstream end of the housing includes either a Truark® retaining ring, or in extreme cases, a threaded retaining ring which is screwed into the housing, clamping the internals between the downstream step and the retaining ring. Additionally, the meter’s supports are mechanically locked in place so they cannot rotate in the housing. The High Shock flowmeter’s rotor blades are thicker than those found on a standard turbine meter. A radius is machined at the intersection of the blades and rotor hub, eliminating the stress point created by a 90-degree cut. In hydraulic fluid applications requiring the use of ball bearings, a step is located in the upstream bore of the rotor so it cannot be pushed over the bearing. High Shock meters are available in sizes from 3/8-inch to 2-1/2 inches, and are capable of measuring liquid flow rates from 0.03 to 450 GPM (0.1 to 1,700 LPM). The meters’ standard range is 10:1, but can be extended to 100:1.

Abbreviations for Units of Measure:
GPM = Gallons per Minute LPM = Liters per Minute P/G = Pulses per Gallon P/L = Pulses per Liter		Black = English (US) Units Blue = Metric (SI) Units English units in GPM Metric units in LPM
End Fittings AE = AN (or MS) external straight threads, 37° flare NE = NPT external threads DB = Dynamic Beam Seal, per SAE AS 85720/01 Note: “DB” fitting available up to size HS-20 62 = SAE Code 62, 4-bolt split flange Note: “62” fitting available for HS 4-8 – HS-32 * HS-10 “AE” fitting is 5/8". NE and 62 fittings are 3/4" AN (MS) NPT SAE Code 62 Dynamic Beam Seal		Calibration CODE DESCRIPTION Note: W=Water, S=Solvent, B=Oil Blend Viscosity must be provided with oil blend calibrations “B” NW 10-point, normal 10:1 range, in water NS 10-point, normal 10:1 range, in solvent NB 10-point, normal 10:1 range, in oil blend XW 10-point, extended range, in water XS 10-point, extended range, in solvent XB 10-point, extended range, in oil blend TW 20-point, normal 10:1 range, in water TS 20-point, normal 10:1 range, in solvent TB 20-point, normal 10:1 range, in oil blend YW 20-point, extended range, in water YS 20-point, extended range, in solvent YB 20-point, extended range, in oil blend U2 Universal Viscosity Curve, 2 Viscosities (specify minimum viscosity & maximum viscosity). 10 points each viscosity U3 Universal Viscosity Curve, 3 Viscosities (specify minimum viscosity & maximum viscosity). 10 points each viscosity
Series & Size	End Fittings	Calibration