Thursday, December 2, 2010

High-pressure centrifugal pump for hot water and cooling circuits

With the high-pressure centrifugal pump "Helix" the pump expert Wilo presented to Chillventa 2010, a highly energy-efficient, durable and maintenance friendly pump for cold water supply and cooling cycles.

By default, the pump series "helix" of IE2 motors, so they already meet the requirements of mid-2011 from current regulation to electric motors under the European Eco-design Directive (also known as ERP / EuP directive).

It would also appear the "Helix" by a particularly efficient, with extremely precise laser welding technology made hydraulics. This allows the development of the higher specific pressure with fewer pumps levels.

Another advantage is high on durability and longevity designed structure. Thus, for example used for the production of impellers and stages with the high-quality stainless steel type 1.4307 or 1.4404, a corrosion-resistant material.



A major advantage of the high-pressure centrifugal pump "Helix" is the cartridge system "X-Seal", which is characterized by a model cross-seal concept: Throughout the series the "X-Seal cartridge system is a standard seal used.

Equipped with an upgraded clutch - the so-called "spacer" - characterized the "Helix" pumps also characterized by a significantly reduced spare parts maintenance costs. After removal of the expansion of the exchange coupling of the mechanical seal for pumps with motors from 7.5 kW without the development of severe motor is possible. This results in low maintenance and maintenance costs.

The lantern of the "Helix" pump is depending on the installation (single port or parallel connection in boosters) at 90 ° available - this is a lateral or frontal access to the seal possible.

To the show presented Wilo models "Helix V 1606" - for a nominal flow rate of 16 m³ / h and is equipped with six wheels - and "Helix VE 2205" - a version with integrated frequency converter, for a nominal flow rate of 22 m³ / h is designed and equipped with five wheels. Electronically controlled "Helix" pumps already meet the requirements of the current third stage of the 2017 Regulation on electric motors under the European Ecodesign Directive.

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