Roof radial fans are used in stationary exhaust ventilation systems of residential, public and industrial (industrial) premises with a network of ducts and without it. They are intended for operation in conditions of moderate (U) climate of 1 category of accommodation according to GOST 15150-69 (motor A) in the presence of options for protection against precipitation, in conditions of moderate-cold (UHL) climate of 2 category of accommodation (motor S) and are installed on the roof. Radial roof fans radial exhaust smoke ventilation (DU, DUV) are designed for removal of high-temperature smoke-air mixtures arising at fire and simultaneous heat removal outside the serviced premises.
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