DA type radial blowers - User benefits

Compact design

Achieved by integrating the transmission with the blower. The impeller is mounted directly on the shaft driven by a single-speed gear transmission.

High operating efficiency

In a wide operating range, ensured by a special impeller design optimised to the operating requirements, high-efficiency transmission and the control system.

Stepless capacity control

Between 100% and 45% (40%) at a constant rotational speed of the impeller. The expensive inverter for rotational speed control is not needed. During operation, the capacity is controlled automatically by suitable turning of inlet guide vanes on the inlet and/or the vaned diffuser on the outlet, once the required operating specifications, both direct (e.g. blower capacity) and indirect (e.g. the quantity of oxygen in aeration tanks in sewage-treatment plants), are set.

Low noise level

85 dB(A) with insulated pipelines. Unlike in displacement machines, there is no noise-increasing air pulsation in the pipelines. If the blowers are installed in a separate unattended building, sound-absorbing casings are not required, and the noise level is low enough for the operating staff to carry out the necessary maintenance operations according to PN-94/N-01307.

High performance reliability

Achieved thanks to high standards of workmanship and minimized number of rotating parts.

Easy installation

All subassemblies, including the control cabinet, are mounted on a common frame which does not require heavy foundations.

Output air purity

Output air (or any other gas medium) is free of dust and oil carry-over.

Easy operation

The control system helps to reduce the probability of accidental operator errors to the minimum and uses a series of sensors to detect and quickly respond to anomalies (by indication or emergency stop). The flexible control system can be programmed according to customer requirements. The microprocessor-based programmable logic controller features an integrated process variable monitoring and display functionality.