Ko te kupu “pahū-pahū” mo nga kaiwhaiwhai pahū e tohu ana ki o raatau hoahoa e wehe ana i nga waahanga hiko e kaha ana ki te whakaputa korakora, arcs, me nga pāmahana morearea mai i nga ranunga hau pahū a tawhio noa i te wa e mahi ana. Ma tenei hoahoa hoki e whakarite kia kore e puta he korakora ina puta nga ahuatanga motuhake i te waku ki te awhi powhiriwhiri, thus maintaining safe production practices.
Explosion-proof drum fans are generally categorized into two types: one with both the casing and the impeller made of aluminum alloy and powered by explosion-proof motors; and another where the casing is made of iron sheet or stainless steel with an aluminum alloy impeller, also powered by explosion-proof motors. The use of aluminum alloy in friction areas prevents ignition, fulfilling explosion-proof requirements.
Tikanga, explosion-proof motors like BT4 and CT4 are used, with customization options available for high-temperature resistance, parenga waikura, and variable frequency. These drum fans are ideal for flammable and explosive environments, penei hau māori kawe waka.