March 2012 | AIChE

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March 2012

Model 24 RDS 24 rotary drum screen

The self-cleaning Model 24 RDS 24 rotary drum screen removes solid materials from waste streams at high rates. The rotating cylinder is constructed from wedgwire screen that is available in seven orifice sizes. Cylinder dimensions include either 24- or 36-in. dia., with lengths ranging from 24 to 120 in., giving operators the option for throughput capacities ranging from 200 to 4,650 gal/min. The effluent stream discharges from a head box, overflowing a dam and flowing onto the outside of the rotating cylinder, allowing water to pass through into the cylinder.

PCM colloid mill, PSM submersible basket mill, Max-Shear rotor-stator mixer, and Model 50 lab dispersator

Through its recent acquisition of Premier Mill, this firm has added four new pieces of processing equipment to its product offerings — the PCM colloid mill, the PSM submersible basket mill, the vertical Max-Shear rotor-stator mixer, and the Model 50 lab dispersator. Collectively, these products provide users with many options for grinding, dispersing, mixing and dearating operations, for applications in the pigment, paints and coatings, pharmaceuticals, food processing, ceramics, agricultural, minerals processing, cosmetics, and other markets.

Elecon bucket conveyor and elevator system

The multi-axis Elecon bucket conveyor and elevator system now comes with mid-size buckets with a capacity of 495 in.3 — more than twice the capacity of the original Elecon system. The conveyor has a patented chain and uses wedge-shaped, cantilevered buckets that come together and overlap at the loading or filling station. The patented rack-and-pinion system ensures full discharge with a 360-deg. bucket rotation and quick return to the upright position.

Deltatop differential-pressure flowmeter

The Deltatop differential-pressure (DP) flowmeter measures gas, liquid and steam in ½-in. to 24-in. pipes. This flow-monitoring solution features an averaging pitot tube, a precision-machined orifice-plate primary device with a range of flanged union options, a manifold, and a transmitter. It is designed specifically for applications in accordance with ASME B16.36. The accuracy of volumetric flow measurement is achieved through the development of a theoretical model of flow coefficients that has been proven through empirical test data and verified by independent laboratories.

Series MFM Thermal Mass Flowmeters and MFC Thermal Mass Flow Controllers

This firm recently added the Series MFM Thermal Mass Flowmeters and the MFC Thermal Mass Flow Controllers to its extensive line of specialty and scientific research gas systems and equipment. The devices accurately monitor and control the flow of a wide range of gases in applications as varied as leak testing, medical research, vapor deposition, semiconductor processing, pollution monitoring, gas blending, chromatography, and more.

RTR-574 wireless four-channel logger

The new RTR-574 is a wireless four-channel logger that monitors illuminance, ultraviolet light, temperature and humidity. In addition to these parameters, the RTR-574 can also display cumulative illuminance and the cumulative amount of ultraviolet light in the LCD display. It has a wide luminosity range of 0 to 130,000 lux and low-light resolution to 0.01 lux. The UV range is 0–30 mW/cm2. The device operates at temperatures from 0°C to 55°C and relative humidities of 10–99%. The compact (2 in. by 3 in.) device can store up to 8,000 readings for each of the four channels.

Nor-Mag Series AC/DC-powered electromagnetic flowmeters

The new Nor-Mag Series AC/DC-powered electromagnetic flowmeters, available in both flanged and wafer versions, provide high flowrate-measurement accuracy for electrically conductive liquids in such industries as water treatment, heating, food processing, chemicals, and more. The device has no moving parts, and once installed, it produces no pressure losses or other hydraulic anomalies in the flow path.

Type 6650 3/2 miniature solenoid isolation valve

The Type 6650 3/2 miniature solenoid isolation valve’s patented flipper technology employs an elastomer element that moves between opposite seats under the force of permanent magnets, which are fixed to the flipper element. This configuration opens one flipper as it closes the other, providing a fast response. The valve’s optimized design ensures reproducible and precise dosing and effective rinsing, making it suitable for use with aggressive chemicals. It measures 4.5 mm wide, and outperforms comparable 10-mm and 16-mm designs.

Cartridge Filter

This 40-nm-rated filter provides 40-nm retention while maintaining the flow of 50-nm-rated filters in wet processes and distribution systems. They improve performance and lower costs for semiconductor manufacturing, and can be installed as retrofits in existing systems to upgrade retention performance and reduce particle counts without negatively affecting performance. Using these filters can also reduce processing times or increase flowrates.

AcroPrep Advance 96-well filter plate

The AcroPrep Advance 96-well filter plate uses membrane-sealing technology to provide uniform filtration rates and consistent sample recovery from the wells. It features an optimized outlet-tip design that minimizes weeping during incubations and the formation of post-filtration hanging drops. Its biologically inert housing reduces nonspecific binding of target analytes, which maximizes sample recovery. The plate quickly performs acquisition for multiplexing applications, as well as more consistent enzymatic responses.

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