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July 1, 2006

Flowmeters

 

 

These meters have no moving parts

The Vortex PhD (photo) is an inline meter that measures flow of liquids, gas or steam. With a fully welded sensor construction, the Vortex PhD has no moving parts nor holes that can clog, no internal gaskets that can fail and no need for bypass-piping installation. Accuracy is ±0.7% of rate for liquids and ±1.0% for gas and steam with a repeatability of ±0.15% of rate. With a menu-driven user interface, local programming is allowed. Output signals are scalable, 4–20-mA current and frequency/pulse 0–10 kHz over the HART-268 communications protocol. A local LCD screen displays both flowrate and totalized flow. Available in carbon or stainless steel, the Vortex PhD flowmeter has a process-temperature rating of –40 to 750°F and a pressure rating to ANSI class 600. — Spirax Sarco Inc., Blythewood, S.C.

edlinks.che.com/6514-431

 

Clamp on these ultrasonic flowmeters

This new generation of Doppler Ultrasonic Flow Meters offers simple installation and operation. Intelligent software algorithms, which operate within the Series DFS Flow Meter (photo), monitor incoming signal quality and flowmeter performance — both during initial startup and continuously during operation — to make automatic adjustments to nullify changing liquid conditions. In contrast to older Doppler ultrasonic meters, the DFX contains a digital mixer circuit that is highly immune to measurement errors caused by electrical noise and other ultrasonic products. The clamp-on pipe transducer, rated to NEMA 6P and temperatures up to 400°F, can be located up to 1,000 ft from the DFX display enclosure. An insertion-probe transducer is available for installation on pipe systems that do not permit ultrasound penetration. The DFX system can measure flow on pipe sizes larger than 1/8 in. This system is a non-intrusive solution to measuring flow in full pipes carrying liquids with useful sonic reflectors (particles greater than 35 mm), such as sludges, slurries, emulsions, dispersions and pulps. — Dynasonics division of Racine Federated, Inc., Racine, Wis.

edlinks.che.com/6514-432

 

A new generation of compact Coriolis meters is introduced

The Sitrans FC300 DN4 flowmeter (photo) has a maximum capacity of 350 kg/h in a compact design (5.3 X 8.1 X 2.3 in.) that weighs 3.5 kg. The sensor is virtually impervious to process-generated noise, such as vibrations, pulsations and pressure shocks. The FC300 delivers a stable flow signal with an accuracy of better than 0.1% of rate, and a liquid-density accuracy of less than 0.0015 g/cm3. The sensor is available in a W1.4435 (AISI 316 L) stainless-steel version with a maximum operating pressure of 130 bar, and a Hastelloy W2.4602 (C22) model with a maximum operating pressure of 410 bar. The standard-temperature version can be operated up to 125°C, and a high-temperature version can attain a 180°C operating temperature. — Siemens Energy & Automation, Inc., Alpharetta, Ga.

edlinks.che.com/6514-433

 

This is a compact solution for mass-flow measurements

Using micro-solid-state technology (MEMS), this company has been able to minimize the footprint dimension to 0.75 in. for ultra-compact flow and pressure controllers. The IQ+Flow (photo) concept offers these functional modules: flowmeter, pressure meter, control valve, shut-off valve, three-way valve and mixing chamber. A combination of modules can be mounted on a compact manifold for a typical application such as flow and pressure control in a gas-chromatography system. — Bronkhorst High-Tech B.V., Ruurlo, The Netherlands

edlinks.che.com/6514-434

 

Improve boiler efficiency with this gas flowmeter

The new Boiler-Trak Smart Insertion mass flowmeter (photo) is designed to provide an economical and easy-to-install solution for natural-gas measurement in heaters and boilers. The instrument is also suited for compliance with regulations for the burning of natural gas in commercial boiler applications. The microprocessor-based transmitter integrates the functions of flow-range adjustment, meter validation and diagnostics in a probe-mounted NEMA 4X housing. Mass flowrate and totalized flow can be displayed on the meter’s optional LCD panel. The Boiler-Trak also provides an optical/galvanic isolated 4–20-mA output, two alarm outputs and a contact input for range or gas selection. The meter is suitable for pipes or ducts from 1.25 to 6 in. — Sierra Instruments, Monterey, Calif.

edlinks.che.com/6514-435

 

This flow totalizer is battery-operated

The Signet 8150 (photo) is a battery-powered flow totalizer that is designed for use in applications where battery-powered operation is most effective, such as for wastewater-flow accumulation, water-treatment systems, and remote or mobile treatment. The 8150 uses standard lithium batteries that are rated to last up to 4 years. The unit is offered with three totalizers; two are resettable for long- and short-term monitoring and the third is permanent. A large LCD displays both flowrate and total flow volume. — GF Piping, Tustin, Calif.

edlinks.che.com/6514-436

 

This magflowmeter offers accurate dosing

The Type 8055 Full-Bore Magflowmeter (photo) permits precise filling control across a wide array of flow applications. This meter is available in three versions: general-purpose (ANSI or Wafer flange), low-flow (NPT) and sanitary (Tri-Clamp). The general-purpose version has a measuring range of 3.2 to 1,233 gal/min, with an orifice size range of 1 to 4 in. The low-flow version measures 0.04 to 55 gal/min with orifice sizes of 1/8 to 3/4 in., and the sanitary version can measure 0.04 to 1,233 gal/min in orifice sizes from 1/8 to 4 in. Accuracy for all versions is ± 0.2% of reading (for a liquid velocity greater than 3.28 ft/s), and repeatability is better than 0.1%. The maximum fluid pressure permitted is 234 psi. The allowed fluid temperature varies with the version selected, with an overall range of –4 to 302°F. — Burkert, Irvine, Calif.

edlinks.che.com/6514-437

 

This low-flow Coriolis meter now offers more options

The Quantim QMBS meter extends mass-flow measurement to very low-flow ranges between 0.001 and 28.0 kg/h. This model is suited for metering small amounts of fluids in batch-dosing processes and fluids in small-volume, liquid-filling systems. The Quantim sensor (photo) has the world’s smallest Coriolis footprint on the market, says the manufacturer. The option of installing a transmitter in a separate location, as far as 500 ft away, gives even more flexibility in tight spaces. A Quantim QTA transmitter or alternative device can be selected for this function. Transmitter digital communications include Modbus, Foundation Fieldbus, Hart and Profibus PA. Two new options can be provided on the QMBM meter and QMBS sensor products: a Hastelloy C-22 sensing tube for use in environments with corrosive fluids, and a high pressure option for use in applications with pipeline pressures up to 4,500 psi. — Brooks Instrument, a division of Emerson Process Management, St. Louis, Mo.

edlinks.che.com/6514-438

 

Cut energy costs with this gas flowmeter

The ST75 Flow Meter (photo) is a direct mass-flow instrument that has no moving parts and is designed for inline installation in line sizes from 0.25 to 2.0 in. Ideal for use in fuel-gas and air-feed lines, the ST75 is precision calibrated for a specific gas and under actual installation conditions to ensure high accuracy and repeatability. With a range from 0.008 to 839 scfm, this flowmeter is equally well-suited for low- and high-flow applications. The instrument provides ±2% of reading accuracy with ±0.5% repeatability, and includes media temperature compensation to ensure continuous performance in industrial environments. The ST75’s standard outputs are fully scaleable, 4–20 mA and 0–10 V, that are user assignable to flowrate and/or temperature and a 0–1 kHz pulse output of total flow. The instrument is enclosed in an all-metal, dust- and water-resistant, NEMA Type-4X-rated package that is designed for hazardous areas. — Fluid Components International LLC, San Marcos, Calif.

edlinks.che.com/6514-439

 

This flowmeter is for high-pressure applications

The JVHS Series of flowmeters are designed for high-pressure systems that require ratings up to 15,000 psi. These positive-displacement flowmeters are equipped with medium-pressure autoclave process connections, 316-stainless-steel bodies and xylan-coated bolts. The JVHS meters are capable of bi-directional flow and can be hydrotested to 1.5 times the working-pressure rating. Typical applications include high-pressure hydraulic and fuel systems, off-shore chemical injection systems ranging from methanol, corrosion and wax inhibitors to water-treatment chemicals. A line of explosion-proof sensors and displays are available. This company also offers a series of positive-displacement flowmeters for dispensing of acid- and caustic-based fluids. The JVK Series features Kynar bodies, Teflon gears and ceramic shafts to provide chemical resistance. — AW Co., Franksville, Wis.

edlinks.che.com/6514-440

Measure flow of corrosive fluids with this instrument

The MX Series of vane-style meters (photo) monitors flows of fluids, such as corrosive liquids, seawater, deionized water, acids, caustics and plating solutions. These variable-area flowmeters feature corrosion-resistant construction materials. The meter housings are PVC or polysulfone plastic. Wetted internal parts and optional end fittings are 316 stainless steel, titanium, tantalum, Monel or Hastelloy C. Seals are Buna N, EPR, Viton or Kalrez. Each meter is individually calibrated for fluids with the viscosity, up to 650 cp, specified by the customer. Vane meters in the MX Series are designed to measure flows up to 160 gal/min. The meters provide local indication and are available with a 4–20-mA transmitter for remote readout, recording or datalogging. Options include alarm systems for low-flow notification. — Universal Flow Monitors, Inc., Hazel Park, Mich.

edlinks.che.com/6514-441

 

These flowmeters are safety-certified

The Safety Instrumented System (SIS) Coriolis meters now have TÜV certification. This allows users to use this flow- and density-measurement technology in up to SIL-3 loops, per IEC 61508 standards. The IEC certification reduces costs by eliminating documentation and analysis efforts associated with the alternative prior-use methodology of certification. The SIS Coriolis meters are the world’s first to be safety-certified to IEC 61508 standards, says the manufacturer. These flowmeters are advantageous in applications that require a high turndown ratio of flow measurement or very-accurate density measurement. These include low fuel flow (gas or liquid) to a boiler or burner and detecting composition changes via online density. — Micro Motion, a division of Emerson Process Management, Boulder, Colo.

edlinks.che.com/6514-442
 

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