Louver and Butterfly Dampers
Our Louver and Butterfly Dampers are designed and manufactured according to the customer’s specified dimensions, technical requirements and operating needs, whether for shut-off or control purposes.
The dampers are available for both round and rectangular ducts and can be manufactured from a wide range of steel grades. The surface treatment, actuator and optional equipment are selected on a case-by-case basis to ensure optimal operational reliability and durability.


Sealing Air Dampers
Our sealing air solution is available for most types of dampers, such as louver dampers, 3-way dampers and guillotine dampers.
When absolute tightness is required, our sealing air dampers offer 100% gas tightness, which allows, for example, maintenance operations to be carried out without having to stop the entire process.
Guillotine Dampers
Guillotine dampers feature a sliding blade within the frame, allowing them to be installed in narrow spaces. Adequate space must be provided outside the duct for the sliding blade and the frame’s housing structure.
We offer our customers screw-, chain-, and cylinder-driven guillotine damper solutions, backed by decades of experience and the highest level of expertise in the industry.


Diverters and 3-Way Dampers
Diverters and 3-way dampers have been developed for demanding operating conditions, for example in exhaust gas boilers, cleaning systems and process bypass arrangements.
Bypassing the gas flow can be used to adjust the boiler’s output or make maintenance and repair procedures easier.
The difference between a diverter and a 3-way damper is that a diverter uses one rotating blade to direct the gas flow, whereas a 3-way damper uses multiple blades.
Disc Dampers
Our Disc Damper collection is the most well-known in its field and is used all over the world.
Designed specifically for dirty conditions, the disc damper is an incredibly reliable device when impurities accumulating in the duct make it difficult to use other types of solutions.
The damper features a special blade that closes with force, cutting any impurities accumulated in the duct against the sharp edge.


Stack and Pressure Dampers
Stack and Pressure Dampers utilize technology that allows the damper to open when the pressure increases.
Stack dampers can be installed either in the stack or alternatively in a horizontal channel before the stack. The structure is weatherproof and also collects rainwater, preventing it from running through the stack into the duct.
Other pressure dampers can be positioned more freely at various points in the process.
Pivot Dampers
Our line of Pivot Dampers are structurally strong special dampers designed for shut-off purposes, offering high tightness and low pressure loss.
A Pivot Damper is suitable for replacing, for example, a disc damper when the installation space for the frame is limited, but a correspondingly higher class of durability and reliability is required.


Poppet Dampers
The strength of poppet dampers lies in the uniform sealing surface that completely surrounds the blade.
This achieves a remarkably high level of tightness, and the structure can withstand flow from either direction. Poppet dampers are available for both round and rectangular ducts, and their removable top structure allows for very easy service and maintenance.
Sammet® Clean Flow Dampers for Marine
2-Way Dampers for Marine
Our industry-leading 2-way damper range uses our proprietary sealing air technology to achieve the best gas tightness, all packed into the most compact size possible.
This structural solution, tailored to the needs of marine applications, has been engineered from the outset with reliability and operational efficiency as top priorities.


3-Way Dampers for Marine
Caligo Industria’s 3-way dampers for ships represent the absolute top of the industry.
We have further improved the design refined over the years, offering a reliable and proven solution for ship exhaust gas scrubbers and catalytic converter systems. The result combines durability and efficiency with a modular, easily customizable, and space-saving structure.

