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Space-saving inline pump for buildings, complexes

Home Engineering Pipes & Tubes Space-saving inline pump for buildings, complexes

KSB has introduced the pump it says industrial engineers and building managers have been asking for to reduce space requirements and ease of maintenance over traditional pump types used in residential, office and industrial building environments.

Stuart Rugg, the company’s product manager for water and wastewater, said the new Etaline range of pumps was designed to provide a flexible in-line pump for a wide range of applications for water distribution, heating, ventilation and air-conditioning systems in complex buildings.

“It is also particularly useful in high-rise buildings and skyscrapers where it takes up considerably less of the expensive space that is required for traditional long-coupled designs.”

The pumps can be installed horizontally or vertically directly in the pipeline. The range is available in 22 pump sizes with a maximum motor rating of 55 kW. The maximum flow rate is 700 cubic metres per hour with the maximum discharge head possible being 96 metres.

He said the cast iron casing and the mechanical seals are designed for operating pressures of up to 16 bar. The flanges of suction and discharge nozzles are optionally drilled to EN 1092 or ASME dimensions. The impellers are available in grey cast iron EN-GJL-250, tin bronze CC480K DW or stainless steel 1.4408, depending on the application they will be used for.

“Mechanical seals to EN 12756 are standard with a large number of material variants to choose from. The maximum operating temperature is 140 degrees Celsius. The conical design of the seal chamber allows easy access and provides more space for maintenance work.”

Stuart said each pump is delivered with an impeller diameter matched to its duty point. This ensures that the pumps operate at their best efficiency point and are not oversized, as is usually the case with ready-made impellers. Another benefit is the replaceable casing wear rings on the discharge and suction sides which allow for ease of service and maintenance, even after many years of operation.

The motor rating for the range is up to 55 kW and can be used with KSB’s motor mounted KSB PumpDrive speed control systems. PumpDrive is a variable speed system allows the use of up to six pumps and provides the ability to change over if the duty pump should fail. It has a harmonised design and is able to effect energy savings of up to 60 per cent via variable speed operation in combination with IE2 motors.

“Despite its premium badge, the Etaline range is affordable and due to built-in maintenance saving features will provide the lowest possible lifecycle cost available,” Stuart said.

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