Specifications
• Fully sealed low leakage 2mm thick aluminium case
• Galvanised case as an option
• Extruded light weight aluminium blade
• Each blade pivots on 5mm dia rod
• Two nylon bearings on each blade pivot rod
• 35mm flange suits all flange systems
• Standard o/all width 75mm
• Suitable for horizontal and vertical applications
• Available as rectangular, spigot, circular & oval types
• Heavy Duty version with bronze bushes steel blades etc
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