The body is manufactured from galvanized sheet metal. BSH models are made of high quality galvanized steel which is resistant to corrosion All models have an external rotor motor with closed structure. The device is capable of handling air at max. 40ºC.
It is designed to work between the rectangular channel. The fan blades are aerodynamically curved and provide regular flow. The fans are composed of backward sloping and infrequently arranged fins.
Bypass air dampers have been found not to be fully sealed. Instead, it is seen that the sliding system bypass panel is more efficient in the tests and it has been used in our devices. It can be operated in the desired position.
Optional control devices can be provided. Speed control can be done with linear voltage regulator in 1~phase products (see BSC accessory). Speed control with frequency inverter can be done in 3~phase products (see BSC-F accessory).
It is used for supplying fresh air to the shelters. They can be used in two different positions: normal time and war time. In normal time, the air is passed through the G4 filter only to the interior. In the time of war, fresh air; It can be sent to the interior by passing through the activated carbon filter and nuclear hepa filter which can purify the possible chemical
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