radial fans Purpose Principally, designed for air-supply- or extraction ventilation of rooms and workplaces, are recommended especially for use with system of local exhausts. They can be installed stationary in a ventilation rooms or other technical rooms. They meet the requirements of the ErP 2009/125/EC Directive. The fan consists of a steel spiral housing, and a motor. Its aluminium radial impeller is directly installed on the motor shaft (direct drive). The cross-section of the impeller blades reminds the profile of an aircraft wing, providing low acoustic pressure level of the fan. Outlet connection is adapted for attachment of round-section flexible connectors, whereas the inlet can be equipped with a connection ferrule. For safety reasons, the inlet and outlet are equipped with protective grill. On demand of Customer, the fan can be delivered with another location of the outlet ferrule. The fan motor is screwed to the S-WPAN base which is placed on a VF-WPAN vibro-absorbing frame, to avoid vibration transmission to the floor. On demand of Customer, we deliver safety switches to cut off the power supply during the servicing and installing activities (see catalogue card ELECTRICAL ACCESSORIES). Note: As additional accessory, we offer connectors to attach a flexible hose to the fan inlet (see catalogue card INSTALLATION ELEMENTS).

Technical data Type * Measurement has been carried out with the additional TK L = 500 mm silencer installed at the fan inlet and outlet (for WPA-3-S-N apply TK L = 370 mm silencer). 1. Maximum temperature of the conveyed air is +60°C. Maximum temperature within the work area +40°C. 2. Maximum dustiness of the conveyed air should not exceed 0,3 g/m3. Dimensions Type