This company’s Wet Well Monitoring System (photo) is designed for monitoring methane, oxygen and hydrogen sulfide in a hazardous wastewater-treatment-plant environment. The system incorporates the CP-60 controller with three remote 4–20-mA (24 V d.c.) sensor/transmitters in Explosion-proof Class I Div.…
SysCon control systems (photo) can be custom-designed for virtually any industrial process, including mixing, pumping, chemical dosing, dilution, heat exchange, separation, drying and waste treatment. Based on process-logic control schemes, these systems are routinely supplied with a recipe-sequencing program, calibration…
The new piston diaphragm pumps of the model series R 509.1 (photo) add to the sera dosing-pump product repertoire with eccentric screw adjusters. The operating range of the new 509.1 piston diaphragm pumps varies from 6.5 to 81 L/h at…
Now FM-approved, FireChek thermal shutoffs with resettable memory-shape alloy (photo) can be used to automatically shut down a pneumatic control system when a nearby fire occurs, or when the ambient temperature reaches 135, 150 or 165°F. The testing and resetting…
This company’s QuadraTherm 640i/780i thermal mass flowmeters (photo) now come equipped with new gas-mixing software, called qMix. The qMix software is a user-customizable gas-mix feature that allows engineers and operators to create custom gas mixtures to compensate for gas compositional…
The new RX-10 Reactor Control system (photo) connects and automates jacketed laboratory reactors and controls thermostats, stirrers and pumps with a single touchscreen interface that provides a consistent platform across all laboratory reactors. RX-10 controls jacketed laboratory reactors with third-party…
Organized by The Water Environment Federation (Alexandria, Va.; www.wef.org), this year’s Weftec conference and exhibition is taking place Sept. 26–30 at McCormick Place in Chicago, Ill. Focusing on the water and wastewater industries, the event will feature a large exhibit…
Determining net positive suction head (NPSH) can be confusing, but with these guidelines, engineers can avoid the pitfalls of incorrect calculations Most engineers have likely heard the term NPSH (net positive suction head) at some point in their careers. Put…
The pipe-flow equation presented here can be used to properly and easily size pipelines for liquid, vapor and two-phase flow. Example calculations are also shown Sizing pipelines is a fundamental task for design engineers, who typically use several equations to…
Electric alternating current (a.c.) motors power all types of equipment in the chemical process industries (CPI), including pumps, fans, blowers, compressors and other types of process equipment. Electric motor systems offer opportunities for reductions in power consumption because while some…