BLD – Non-return damper
Halton BLD non-return dampers are used in offshore and marine applications to prevent backflow through ventilation ductwork.
Overview
- Fixed frame in painted, galvanized or stainless steel. Blades of galvanized or stainless steel.
- Models for horizontal or vertical installation
- Available as ATEX certified
- Leakage class (EN1751:2014) of closed damper up to class 2. Details available from Halton.
- Blades contain silicone seal to lower the leakage through blades
- Blades linked and open in parallel
- Adjustable by changing the position of counterweights. Standard construction places weights on the right hand side, weights on the left hand side available as an option.
- Maximum duct pressure for damper construction 5000 Pa and maximum air velocity 15 m/s. In case of high duct pressure, contact Halton Marine for finding the most suitable solution
- Temperature operation range up to +100°C, optionally up to +180°C