Major components laid out for inspection. Centrifugal Pumps will only perform at their best if operators provide the right kind of preventive and protective maintenance.  (Picture: Griswold)
Maintenance

Chemical Pump Maintenance

Transfer pumps form a key part of any chemical plant. These pumps must operate reliably, often around the clock and handling a variety of corrosive or otherwise difficult materials. This article explains how to plan and carry out routine maintenance of centrifugal chemical pumps so as to avoid pump downtime and consequent lost production.

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Sipart PS2 is currently the most widely used positioner for linear and part-turn actuators in a wide range of process industries. The proven all-round design has a particularly flexible stroke range and intelligent diagnostics and it communicates via Hart, Profibus PA, or Foundation Fieldbus. (Picture: Siemens)
Valve Positioners

Flexible in Any Position — Valve Positioners as Versatile Multi-Taskers

An extremely broad range of process applications requires field devices with a high degree of flexibility. Likewise, the issues of standardization and simple stock management are becoming increasingly important. And the devices must meet the normal everyday requirements: easy to operate and capable of being used universally, while requiring minimal time and cost for maintenance. So how does this apply to automated valves?

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The new C-Conveyor from Poeth has been specifically designed for efficiently recirculating light powders and explosion-prone raw materials. (Poeth)
Conveying System

Efficiently Recirculating Powders, Pellets and Granulates

Certain situations in powders, pellet and granulate handling require raw materials to be fed back vertically into the production process. Poeth has developed its new C-Conveyor specifically for these situations: it optimises the production capacity of recirculating conveying systems and minimises the risk of contamination. The new conveyor is explosion-proof, so no costly investments in Atex protection are required. Low energy consumption is a further benefit.

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