CD-309

The Ruskin Model CD309-RG is designed for air balancing purposes in low / medium pressure and velocity systems. A single skin blade is securely riveted to bearing pins at both ends with self lubricating nylon bearings, alternatively brass bearings are available.
A 25 mm slip spigot with a rolled groove is provided on each end for easy fixing and the groove provides useful backstop for the duct.
A pressed steel locking hand quadrant is provided as standard, with clear open or closed blade position stamped onto the body of the hand quadrant. If required dampers having factory fitted motors can be supplied or plain motor control shafts are also available.

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