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Valve position indicators that tell more than just on or off

  The 2040 digital position indicator uses a colored light signal, visible from a distance, to show the open or closed position of a valve. Four different color signals are used: open and closed by yellow and green. At the…

Direct-acting solenoid valves for use in harsh environments

Introduced last month, these two intrinsically safe solenoid valves (photo) have Ex ia IIC T6 certification. The solenoid operators are designed for use on the 327 range of direct-operated solenoid valves, and are available in epoxy-coated aluminum or stainless steel.…

A mixer equipped with special finger blades

A new agitator-blade design for this company’s Double Planetary Mixer features two identical rectangular stirrers with upward rake fingers. Designed to rotate on their own axes, while also orbiting the mixing vessel on a common axis, the stirrers are ideal…

New coolant connections for high-flowrate applications

Coolant circuits must dissipate heat from applications such as welding or power-electronics installations. This requires high flowrates within a compact space. This company has extended its Liquidline by designing two energy-optimized coolant connections that exceed the flowrates of previous Liquidline…

Focus on Pumps

Dickow Pump No cooling water needed for these hot-water pumps This company offers a wide range of hot-water pumps for temperatures up to 530°F and design pressures up to 1,160 psi. Due to high vapor pressures, standard mechanical seals cannot…

Configure this valve position monitor with the push of a button

The Type 3738 electonic valve-position monitor can be used with on/off valves across a wide range of applications, and enables valve-position monitors to be configured at the push of a button. The device features a contactless, magnetoresistive sensor system that…

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A process for recovering rare-earth metals from magnet scrap

Researchers at the U.S. Dept. of Energy’s (DOE) Ames Laboratory (Ames, Iowa; www.ameslab.gov) led by Ryan Ott have developed a process for recovering rare-earth (RE) metals from magnet scraps. The process involves first crushing neodymium-iron-boron magnet scraps and placing the…

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Spun carbon-nanotube fibers with unmatched properties of any other material

For the first time, it has become possible to spin carbon nanotubes (CNTs) into a fiber that looks and acts like textile threads, yet has the electrical conductivity and strength of a metal. The breakthrough, which came after more than…

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Sizing, Specifying and Selecting Centrifugal Pumps

Determining the proper preliminary size for centrifugal pumps during the initial stages of any pump-specification exercise requires numerous calculations and assumptions. This article reviews the steps needed to size centrifugal pumps during the early stages of a project, to support…

This little valve has a zirconia ball and seat

The new Hard Seat VHS Micro-Dispense Valve offers repeatable, non-contact dispensing of fluids in the nano- to microliter range. It features a precision zirconia ball and seat instead of a traditional elastomeric seal, thereby ensuring resistance to aggressive fluids, such…