Parallel Blade Non-Sealed Damper
The OBN/PBN non sealed balancing damper offers a sturdy steel construction. The damper frame is a 16ga galvanized welded design to keep the damper square and true to form. The blades are formed 16ga galvanized with linkage in the air stream for better blade operation. Bronze oilite bushings offer low maintenance and ease of operation.

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Other materials include: Stainless Steel or Aluminum with some
S.S. Hardware.

Options:
Jackshafting
Face & Bypass
Sleeves
Quadrants - Galvanized or Stainless Steel
Electric Actuators

See Spec Sheet (pdf format)