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Energy Efficient APV W+ Pumps from SPX

Published 07 March 2013 | By SPX Corporation

The APV W+ centrifugal pumps from SPX provide greater energy efficiency and, with their hygienic design, are ideal for food, beverage and pharmaceutical applications. The range offers a comprehensive choice of models to ensure the pump is designed for duty that closely matches the application requirements – maximising the pump efficiency. In many applications a W+ pump may typically provide greater efficiency than other hygienic centrifugal pumps.

The design of the W+ range is another example of engineering and innovation excellence from SPX - all have high efficiency impellers, reduce noise and vibration and a heavy walled pump casing ensures efficiency at high system pressure. The original,
state-of-the-art APV spiral volute on the pump backplate further ensures maximum efficiency with direct transfer of liquid from inlet to outlet.

W+ pumps are approved by EHEDG (European Hygienic Engineering and Design Group) and have the option of 3A approval. This ensures the whole range is ideal for clean in place (CIP) and sterilise in place (SIP) duties.

Their hygienic design gives no hiding places for bacterial growth and their construction is designed for easy cleaning and reduced cost and time for maintenance and repairs. W+ pumps can be further customised for ultra-hygienic applications with electro-polished finishes, meeting the most stringent requirements of pharmaceutical installations.

Within the range are a variety of specialist pumps. The Wi+ is an inducer pump, ideal for applications with low net positive suction head (NSPH). The inducer boosts the inlet pressure, reduces the risk of cavitation and, notably, keeps NSPH requirement very low
through almost its entire capacity - uniquely offering the same flexibility as the standard W+ pumps.

The self-priming Ws+ is perfect for CIP return and applications where air or foam is present in the fluid. The impeller in this innovative design can be trimmed to match duty requirements - significantly reducing noise and energy consumption levels compared with traditional liquid ring pumps that can only provide one pump curve. It is also worth noting that, as with all W+ pumps, the Ws+ is hygienically designed and has EHEDG approval and the option of 3A approval.

The Whp+ brings high-pressure capability to the range, withstanding pressures up to 60 bar. It maintains maximum efficiency and are close coupled to the motor - removing the need for a separate coupling and mounting plate and significantly simplifying installation

SPX has a long history in centrifugal pump design and extensive experience in the food, beverage and pharmaceutical industries. The W+ range of pumps is just one more example of reliable, innovative design delivering real customer benefits. Their energy efficiency, cost effective maintenance and reliability ensure a reduced cost of ownership. Designed for hygienic application, these pumps are the perfect choice for CIP and SIP and are suitable for use with a wide variety of food, beverage and pharmaceutical products.