Mine stitched passive with the throttle valve
The mine stitched CFI has the aerodynamic form and is made of plastic steady against hostile environment of livestock rooms. The mine has a smooth surface with dirt - resistant property and easily washes.
CFI mine a dozhdezashchitny umbrella and a roofing plate – resistant to influence of sunshine and low temperatures. The protective grid from wild birds is made of plastic, is not subject to frosting.
The case of mine has multilayered structure like "panel sandwich". The internal cavity is filled with the made foam polyurethane from 45 to 50 mm thick depending on diameter of mine.
Lengthening of an air duct sections on 500 mm, 1000 mm, 1500 mm is possible.