Egger: Launch of the New Iris® Diaphragm Control Valve IBS

Over the past few decades, the Iris® Diaphragm Control Valve has proved its worth in hundreds of wastewater treatment plants, where it is used primarily as a flow-control valve to ensure economical input of air into the aeration basins. We are driven by a desire to make the tried-and-tested increasingly better. Egger is proud to launch a completely
redesigned and technically revised Iris® Diaphragm Control Valve onto the North American market. This new series named IBS will be presented to a wide audience for the first time at this year’s Weftec in New Orleans. The modern industrial design and the compact structure with shorter installation lengths are immediately visible. It is advantageous for a
plant operator to know the position in which a control valve is located. As a result of this, the visual position indicator has been completely revised and is clearly visible from three sides.

The self-lubricating spindle nut design of the IBS enables maintenance-free and cost-extensive operation, thus simplifying the use of the control valve in inaccessible locations. An additional advantage for the operator is the ability to replace the drive support or parts thereof without having to remove the Iris® valve from the pipe. As an all-rounder, the new IBS can be used in a number of industrial applications; its gas-tight design without spindle feedthrough opens up many new possible applications for regulating chemicals and industrial gases. Its robust design and self-cleaning segments also make the valve a reliable regulator for raw sewage or sludge.

Iris® Diaphragm Control Valves are therefore used to control raw sewage, process water, primary and aerated sludge, and also for the
task of loading centrifuges with digesting sludge. The three buffer liquid and flushing connections of the new IBS are offset by 90° and can also be used for drainage and emptying condensate, which is a major advantage for plants that are shut down periodically.

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