Disc Anti Reversing Device
COOLING TOWER PARTS
The Marley external Disc Anti-Reversing Device (ARD) backstop is a custom designed, welded stainless steel assembly that is bolted directly to a Marley Geareducer® with input shaft diameters from 1.125″ up to 2.625″.
Features
- Designed for all right-angle Geareducers
- Welded stainless steel assembly
- Can be field installed
- Prevents reverse rotation
Details
This anti-reversing device prevents standby fans from reverse rotation when duty fans are operating. It also helps eliminate damaging and costly fan “reverse windmilling.”
Under reverse rotation, the eccentric mass of the Disc ARD pawls extend away from the rotating disc and engages the stop bracket catch point, preventing the mechanical equipment from operating in reverse direction.
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External Disc ARD
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