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Design optimised for operation without scroll by special blades with rotating diffusor (without blade) for high efficiency and good acoustic performance

• 7 backward curved blades

• Welded steel design

• Surface protection by powder coating or wet coating - RAL 5002

• Higher corrosion protection on request

• Nameplate with indication of hub size, permissible maximum speed and quality of balancing

• With arrow showing direction of rotation

• Standard design up to 80 °C

• With hub in half key balancing according to DIN ISO 8821, quality of balancing G 2,5 / G 6,3 according to ISO 1940, part 1

• Balancing weights in steel / stainless steel

• After installation, the impeller must be put through a function test. A balance test is necessary in the installed condition – rebalance if applicable.

• The impellers are designed for continuous operation S1

• Mounting position horizontal and vertical