December 2010, Vol. 22, No.12


Butterfly valve
The wafer-style Type 567 polypropylene butterfly valve range now includes sizes 14 to 24 in. This completes the large-diameter size offering of 12 to 24 in. and broadens suitability for a wider range of applications. The larger-sized valves, suitable for conveying large volumes of liquids safely and reliably, feature double eccentric design, corrosion resistance, and complete modularity for easy interchangeability. These butterfly valves weigh approximately 50% less than comparable metal butterfly valves for easier and faster installation and lower costs. Georg Fischer Piping Systems (Schaffhausen, Switzerland).

Dissolved-air flotation system
The Nx2JEMTM series dissolved-air flotation system operates using a command–control automated panel. The system’s design features include the Tru Counter FloTM plate pack, ParaLam Weir TM system, integrated pipe flocculator, and Rogues Max RGT TM regenerative turbine aeration system. The chassis and vessel are constructed of welded AISI 304 stainless steel with noncorroding components. Model sizes range from 250 to 4000 gal/min. Process Engineered Water Equipment LLC (Camas, Wash.).

Airflow switch
The Series AVFS adjustable airflow switch, designed to monitor airflow in ducts, provides a 3A contact output to indicate a change in or loss of flow. The system signals a loss of flow and indicates the detected decrease. The system’s light-emitting diode indicates local status — if the airflow is above (green light) or below (red light) the setpoint. The switch provides a ±5% setpoint repeatability across a full scale range of 1–10 m/s (197–1969 ft/min) and includes a mounting bracket for quick duct mounting. The switches comes in compact, rugged polybutylene terephthalate enclosures, making them suitable for ventilation system installation or similar BAS application. Dwyer Instruments Inc. (Michigan City, Ind.).

Peristaltic pump
The King Cobra™ Series peristaltic pumps, designed for chemical handling in chemical-transfer processes, feature a seal-free design that is dry-run capable and eliminates potential leak points. The pumps are capable of handling various fluids, from those that are abrasive and aggressive to those that are shear-sensitive, viscous, or particle-laden. The pumps provide up to 9 m (29.5 ft) of dry-suction life, while their heavy-duty ductile-iron and stainless steel construction allows for discharge pressures as high as 15 bar (217 lb/in.2). Available with three hose options, including abrasion-resistant natural rubber, oily-product resistant Buna-N, and chemical-resistant EPDM, the pumps come in nine sizes, from 0.63 to 4 in., with flow rates ranging from 0.10 to 36 m3/h (0.44 to 158 gal/min). Wilden Pump & Engineering LLC (Grand Terrace, Calif.).

Hose pump
The SPX100D hose pump for sludge applications can run dry and handle sludge with high levels of entrained grit or air. With flows up to 400 gal/min, the system is suitable for scum, thickener underflow, and belt press or centrifuge feed. A self-loading design enables quick hose replacement where the pump sits, and no drive realignment or offsite rebuilding of the pump is required, which reduces maintenance costs. The pump rotors are designed to be fully and centrally supported by their own high-strength bearings. Materials are fully contained within the hose element and do not come in contact with the moving parts of the pump, preventing abrasive wear. Watson–Marlow Inc. (Wilmington, Mass.).

Double-diaphragm pump
AirVantage, an air-operated double-diaphragm pump, reduces energy costs by cutting air consumption at the pump and automatically adjusts as process conditions change to maintain constant flow without manual operation or adjustment. The pumps are equipped with a microprocessor that is adaptive and continuously manages the amount of air volume required to operate the pump at desired flow rates. This determines the optimal diaphragm rod velocity and relays the information to an air-distribution valve at the air-inlet location of the pump. The valve acts as a gated air-management system, allowing only enough air to enter each inner pump chamber. The system utilizes existing airflow to provide its own electricity and power to the device. Available in 2- and 3-in. pump sizes, pumps are available under Sandpiper® and Versa-Matic® brand names. Warren Rupp Inc. (Mansfield, Ohio).

Mobile water treatment units
The FracTreat mobile treatment solution includes a mobile continuous precipitation unit, mobile flotation unit, and a mobile combination pilot unit to improve effluent water quality and reduce the demand on freshwater sources by recycling treated effluent. The line of products offers flexible and convenient treatment of wastewater, specifically designed for effluent from oil and gas applications. The mobile precipitation system combines into single-unit automated chemical feed systems, staged reaction and flocculation chambers, high-rate clarifiers, and clearwells. The mobile flotation unit includes a Veirsep flotation system comprising an inlet centrifugal coalescing device, influent and effluent surge compartments, three flotation chambers, an oil-collection paddle skim system, and Brise DGF pumps. The combination pilot unit includes small-scale flotation, sedimentation, filtration, and membrane separation process units in a single container. Siemens Water Technologies Corp. (Warrendale, Pa.).

Supercritical fluid extraction/reaction system
The SFT-150 supercritical fluid extraction/reaction system, designed to perform extractions and run reactions in supercritical fluid media, is suitable for repetitive laboratory extractions or process development and optimization. Its modular design allows easy, cost-effective alteration of its basic configuration, adapting it to meet new or evolving application needs. The system includes a stainless steel vessel capable of containing supercritical fluids at pressures up to 10,000 lb/in.2. It comes with a 100-mL hand-tight sample vessel and is able to accommodate pressure vessels of up to 2 L. The system’s pressurization is controlled by an air regulator, and a PID temperature controller allows for the control of the fluid temperature in the unit’s vessel. Supercritical Fluid Technologies Inc. (Newark, Del.).

Mini gas chromatograph
The Forston Mini Gas Chromatograph (GC) uses MEMS technology originally developed for the U.S. Army Research Laboratories. The unit is designed for use in soil and water remediation, security and safety, industrial processing, quality control applications, and a wide range of laboratory applications. The shoebox-size, lightweight GC provides real-time data for analysis onsite or to be sent to the supervising chemist with the use of a cell phone. The addition of the Mini GC to the LabNavigator system enables users to tailor the equipment for more than 30 parameters. The system has the ability to acquire, monitor, and analyze data from up to six simultaneous sensor inputs, shortening the time needed to verify critical changes in environments or processes. Seacoast Science Inc. (Carlsbad, Calif.).

Electromagnetic flowmeter
The Full Profile Insertion (FPI) MagTM electromagnetic flowmeter features additional sensing electrodes for increased sensitivity and is packaged in a heavy-duty Type 316 stainless steel sensor body for maximum structural integrity. The meter installs without having to interrupt service, dewater lines, cut pipe, or weld flanges, leading to reduced installation costs. Designed as a cost-effective flow-metering solution for medium and large line sizes, the meter’s compact insertion design fits in confined spaces with limited access and offers total accessibility. The meter’s multielectrode sensor design compensates for variable flow profiles, including swirl, turbulence, and low-flow conditions. Available for line sizes from 4 to 138 in., it supports liquid flow measurement requirements in municipal water and effluent wastewater treatment and has a single-piece design with no moving parts to improve life and reduce clogging. McCrometer Inc. (Hemet, Calif.).

Reverse-osmosis water-filtration system
Four models of the hydroponic reverse-osmosis water-filtration systems offer high filtration output and low waste ratio for any size hydroponic operation. With improved performance and increased water-saving capabilities, the systems feature Dow Chemical membranes, high-flow washable sediment filters, eco green-block radial-flow coconut carbon filters, 2-in. liquid-filled pressure gauges, auto-shutoff valves, EZ hook-up kits, and clear filter housing for easy maintenance. The systems range in capacity from 150 to 1000 gal/d. Assembled with patented metal housings, the systems are designed to use up to 75% less water than comparable models. GrowoniX (Van Nuys, Calif.).

Metering pump
The Moyno® metering pump with enhanced pumping elements and integral variable-frequency-drive motor controls helps expand the scope of metering applications and enhance cost-effective and efficient performance when metering low-flow liquids in a variety of processing applications. The progressing cavity design results in a smooth flow, free from pulsations and variations in velocity and volume, to prevent material waste or mixture imbalance. Pump features include capacities from 0.1 to 400 gal/h, pressures to 300 lb/in.2, and stainless steel construction. Available in bare-shaft and close-coupled configurations, the models are capable of handling a variety of fluids, from clean, clear liquids to abrasive and corrosive fluids, solids in suspension, and viscous materials. Moyno Inc. (Springfield, Ohio).

Electromagnetic flowmeters
The FMG600 series electromagnetic flowmeters, designed to measure conductive liquids, handle applications with wastewater, pulp, food, and slurries. The meters do not have moving parts and include a polytetrafluoroethylene lining. Standard outputs include analog, frequency, and RS-485 communications. Optional sanitary tri-clamp mounting allows use of the flowmeters in applications not previously open to magmeters. Local- and remote-display models are available. Omega Engineering Inc. (Stamford, Conn.).

Spectrophotometer and fluorometer
The NavSpec™ plus spectrophotometer and fluorometer enables users to collect a full wavelength spectrum in less than 1 second. Once the peak wavelength is determined, the user can determine the concentration of a solution or monitor rates of reaction. The system can be used to measure absorbance, percent transmittance, emissions spectra, or fluorescence and emissions of gas-discharge tubes, flame tests, or other light sources; conduct kinetic studies of absorbance versus time and experiments on enzyme kinetics; and perform equilibrium studies of absorbance versus time or absorbance versus concentration, and colorimetric or fluorescent bioassays. The optical range is 380 to 950 nm, and optical resolution is 2.5 nm. The size of the meter is 15 cm × 9 cm × 4 cm. Forston Labs (Fort Collins, Colo.).

Clamp meters
The Fluke family of clamp meters is designed to meet requirements for flexibility, safety, and performance for testing and maintaining electrical systems, industrial equipment and controls, and commercial and industrial heating, ventilation, and air-conditioning equipment. The meters feature thinner, smaller jaws; large backlit displays; improved safety ratings; true-rms standard; and improved overmolding for easier handling and improved survival. The family includes the Fluke 381 Remote Display True-rms AC/DC clamp meter featuring a detachable display; the Fluke 376 True-rms AC/DC clamp meter with iFlex™,designed for testing large industrial motors and other high-current applications in tough industrial environments; the Fluke 374 and 375 True-rms AC/DC clamp meters capable of measuring both AC and DC currents; the Fluke 373 True-rms AC clamp meter; and the Fluke iFlex flexible current probes that expand the measurement range of compatible Fluke meters to 2500 A AC. Fluke Corp. (Everett, Wash.).


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