Tandem Louver Dampers
Features
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Unique dual skin, truss blade assembly to eliminate the need for two sets of bearings/packings/etc.
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100% isolation using supplied seal air system
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Flex-Ledge seals offers tight shut off with low pressure drop, and can operate in high dust load applications.
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Many different actuator options to fit customer’s operating requirements.
Applications
- Applications requiring 100% isolation where a guillotine is not practical due to space constraints.
- Applications requiring 100% isolation where fast operation or fail-safe modes are required.
Operating Range
- 0-3 psig depending on size
- -100 to 1400°F
- Sizes from 12” > 40’
- Horizontal or vertical
Material
- Carbon Steel
- Stainless Steel
- Nickel Alloys
Tandem Louver Fit:
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Attached or linked to piping/duct flanges or directly to duct.
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Flange connections may be alignment bolted and seal welded into the duct, or provided with bolt and gasket type connections.
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Tandem louver dampers typically require between 36”-48” of duct space for installation.
Tandem Louver Form:
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Flex-Ledge Tandem louvers are used for 100% isolation of ductwork.
Tandem Louver Function:
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Open/close applications where tight shutoff is mandatory.
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Often 100% isolation required with seal air systems
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Provides “man-safe” isolation of equipment for online maintenance
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Allows for “fast acting” operation (<20 seconds) for emergency bypass applications.
