The BFC Series of blown-film air coolers has recently been expanded to include units with capacities of 600–9,000 cfm and improvements such as increased energy efficiency and reduced space requirements. The compact design’s air inlet diffuser creates uniform air flow across the cooling coil and decreases the temperature approach. The exit air chamber is insulated to provide the coldest air possible to the air ring while reducing condensation. The BFC Series coolers also feature: noncorrosive wetted surfaces; 16- or 35-in.

The Heat Exchange Institute (HEI) has released the first edition of “Standards for Air Cooled Condensers,” which reflects the combined expertise of the members of HEI’s Air Cooled Condenser Section. It includes typical purchaser requirements and outlines key design criteria for air-cooled condensers. It also provides practical information on nomenclature, dimensions, testing and performance.

The Wet Bench heat exchangers are designed for semiconductor and solar processes that heat or cool highly corrosive, high-purity acids, including wet etching, high-purity cleaning, and photovoltaic wet processing. They are made of fluoropolymer materials, such as ultrahigh-purity perfluoroalkoxy (PFA), that are inert to nearly all chemicals used in these applications, less brittle than glass or graphite, and more-corrosion-resistant than most metals.

The Model HVH blower heater line is now available in 20-kW and 50-kW models with either horizontal or vertical discharge of heated air. It features epoxy-sealed elements to reduce false trips on ground-fault equipment, and internal components that can easily be accessed through a large door at the bottom and a removable case front. A pilot light that indicates normal operation, an outlet screen that prevents objects from coming in contact with the fan, and factory- or field-installed thermostats, fan controls, and disconnect kits are available.

The 14-by-40 Liqui-Cel Membrane Contactor extends the capacity of the Liqui-Cel family of deaeration products from 400 gpm to 550 gpm (125 m3). It consists of a polyvinyl chloride (PVC) housing containing polypropylene hollow-fiber membranes knitted into an array that is wound around a distribution tube with a central baffle. During operation, the liquid flows over the outside of the hollow fibers, and the baffle directs the liquid radially across the array. A stripping gas or vacuum, either separately or in combination, is applied inside the hollow fibers.

A recent redesign has made the Spinner series of jet-spray nozzles more hygienic and more effective at cleaning tanks, drums, barrels, kegs, and ductwork. They are designed for cleaning small to mid-sized tanks, and easily fit into the narrow port holes of such vessels. The two standard models are the Micro-Spinner (for tanks up to 4 ft in dia., with a 1-in.-dia. orifice) and the Mini-Spinner (for tanks that are 4–9 ft in dia., with a 2-in.-dia. orifice).

The HPR Series lab-scale reactors are said to be ideal for studying catalytic, polymerization, hydrogenation, oxidation, isomerization, and dehydrogenation reactions, in applications ranging from high-pressure chemical syntheses to process development. The stirred reactors have a magnetically coupled impeller for optimal mixing. They range in size from 50 mL to 4 L, and may be operated at conditions up to 10,000 psi and 350°C. All sizes are supplied as ready-to-use instruments requiring only utility connections prior to operation.

The Model HSM-100SK-1 multi-purpose laboratory mixer is a bench-top unit that comes with interchangeable mixing attachments, including batch and inline rotor/stator sets, and disperser blades and propellers of various sizes. Depending on the attachment, the mixer can handle formulations with viscosities as high as 50,000 cP. It features a variable-frequency drive that provides speed control from 500 to 10,000 rpm with ±1% accuracy. With 16 in. of clearance under the mixing attachment and 12 in. of distance between the feet at the base, the mixer can be used with vessels of various sizes.

The COM-1700 potentiometric titrator allows users to carry out up to four different types of titrations — including potentiometric, photometric, polarization, and conductometric titrations — in parallel. Its buret design allows for the quick, automatic exchange of reagents. The standard buret size is 20 mL, and optional buret sizes of 1, 5, 10, and 50 mL are available. Each titration station can control up to 10 burets. The new sample changer accommodates a wide selection of test tubes, beakers, and conical flasks.

The MWF-SGSP-OS ultra-sanitary open-construction weigh belt feeder has an all-stainless-steel construction, so it is well suited for processing foods and other materials where cleanability is essential. The feeder can provide closed-loop gravimetric control of the material feed rate, or it can be used in an open-loop configuration for precise conveying-rate output and totalization of an uncontrolled or intermittent material supply.