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Pressure sensors

For pressure-measurement applications in next-generation modulated furnaces, P992 and P356 low-pressure sensors assist with combustion-optimization parameters, helping furnace efficiency increase from 65 percent to 95 percent. The P992 measures airflow, while the P356 measures propane or natural-gas flow. The sensors are fully temperature-compensated and can be adapted to meet application-specific original-equipment-manufacturer requirements.
— Kavlico
Circle 11

Datalogging anemometers

Available with software, hard carrying case, and RS-232 interface cable, TMA40 datalogging anemometers provide three measurements: air velocity or volume, relative humidity, and temperature. Users can choose among single-point measurement, measurement of up to 99 points, or data logging of up to 2,400 points.
— Amprobe
Circle 12

Humidity sensors

With an operating range of up to 200°C, HygroClip 2 humidity sensors provide reproducibility and a guaranteed system accuracy of less than 0.8-percent relative humidity and 0.1°C. In addition, response time has been improved, and new filter technology provides better protection against environmental influences.
— Rotronic
Circle 13

Differential- pressure controllers

Useful for monitoring pressures in various rooms, zones, and ducts in factories, laboratories, and buildings, DH3 Series Digihelic differential pressure controllers provide 4-20 mA process output, two single-pole/double-throw relays with adjustable deadbands, and a large backlit liquid-crystal display with simplified programming via a menu key. The aluminum housing is rated National Electrical Manufacturers Association 4X on the front face.
— Dwyer Instruments Inc.
Circle 14

Strainers

Stainless-steel Thompson strainers are designed for cooling-tower-water, chilled-water, process-cooling, and other applications. The strainers feature a large conical screen element, offering more screen surface area than traditional Y strainers. Screen-mesh options range from large perforated holes to 50 microns. All models operate with a pressure loss of less than 1 psi when clean.
— Miller-Leaman Inc.
Circle 15

Couplings

Suited for HVAC, utility-piping, process-piping, and mining applications, Style 177 QuickVic flexible couplings are rated up to 1,000 psi. Available in 2-, 2½-, 3-, 4-, and 6-in. sizes, the couplings are designed for joining standard roll-grooved and cut-grooved steel pipe. The couplings require no disassembly before installation.
— Victaulic
Circle 16

Air-conditioning systems

For commercial buildings and lodging and hospitality environments, Multi-V air-conditioning systems deliver high energy-efficiency ratios and low sound operation. Using variable-refrigerant-flow technology to operate cooling and heating simultaneously, the systems provide commercial businesses with greater temperature control, avoiding unnecessary energy usage in unoccupied rooms.
— LG Electronics
Circle 17

Boiler controller

The CC-600 master boiler controller features a touch-screen user interface, a graphical display of boiler operation and historical trending, digital communication with a linkageless burner-management system, and Siemens flame-safety integration. By reducing the number of boiler cycles, the controller extends the life of boiler tubes and refractory.
— Century Controls
Circle 18

Water heaters

With inputs up to 500,000 Btuh, 96-percent thermal efficiency, and up to 125-gal. storage capacity, Shield commercial heaters are designed to prevent lime scale. The water heaters offer rooftop or sidewall venting, including conventional, direct-vent, and concentric-direct-vent options, all of which use polyvinyl-chloride or chlorinated-polyvinyl-chloride pipe with vent runs of up to 100 ft.
— Lochinvar Corp.
Circle 19

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