It is available in three types: single-chamber, dual-chamber, and inspection.
- The single-chamber model, equipped only with a D400 ductile iron grid, performs the “flame trap” function thanks to the siphoning system inside its chamber.
- The dual-chamber model has two non-communicating sections: one equipped with a grid—a chamber with a “flame trap” function—and one equipped with a cover—a chamber with an “inspection” function.
- The inspection model is equipped with a cover and serves solely an “inspection” function.
Since stainless steel manholes are the result of assembling (TIG welding) custom press-bent elements, they can be produced in various dimensions and can therefore be customized indefinitely.