The R4Z-series of axial impellers has been developed for applications requiring reversible operation. The symmetrical blade profile allows reversed operation in order to move and equal volume of air in either direction.
Compared to the common practice where every second blade is turned by 180°, the WingFan series R4Z offers the following advantages:
* Improved efficiency
* Lower absorbed power
* Lower noise levels
Z-Series Blades
Impellor diameters range from 299 to 1.011mm with pitch angles from 15° to 40° to meet your specific application requirements. The blades are mounted by means of a common blade root design (Patent No: 2439767). The patent has established this design as the worldwide standard.
The blades are fixed in the hub by means of a steel pin, ensuring a preset blade angle that cannot move or change under load. The blades are made from pressure die cast aluminium for temperatures ranging from -40°C to 150°C offering:
* High strength to weight ratio
* Resistance to corrosion*
* Optimised impeller design for your specific application
* Dirt repelling due to smooth surface
For heavily corrosive atmospheres, the aluminium hubs could be supplied with a protective coating and stainless steel fasteners. Further information is available upon request.
