一、型号的组成及其代表意义1.通风机的前掠型叶片、低噪声的通风机专用防爆电机直联传动，方形外壳设计，可以方便的安装在混凝土墙、砖墙或轻钢压型墙板上；2.设有45°方形防雨罩防止雨水浸入，内置防虫网，防止昆虫***；3.风筒材质可以根据客户要求采用碳钢，不锈钢等；4.可以根据客户要求增加重力止回阀，防虫网等；5.结构牢固、外形美观、噪声低、风量大、运行可靠、安全、安装简便。二、基本技术参数BWEX(SEF)系列防爆边墙式轴流机型号风量（m3/h）静压（Pa）电机功率（KW）转速（r/min）电压（V）BWEX-250D41500400.091420380BWEX-250E41500400.091400220BWEX-300D41800600.181400380BWEX-300E41600600.181380220BWEX-350D43000800.251380380BWEX-350E42800800.251360220BWEX-400D452001400.371400380BWEX-400E450001400.371400220BWEX-450D478001600.551400380BWEX-450E463001600.551400220BWEX-500D492002000.751450380BWEX-500E490002000.751450220BWEX-500D67600800.25960380BWEX-550D4130002301.11450380BWEX-550E4130002301.11450220BWEX-550D690001000.37960380BWEX-600D4180002801.51450380BWEX-600D6120001200.55960380BWEX-650D6165001500.75960380BWEX-700D6190001801.1960380BWEX-750D6225002101.5960380BWEX-800D6250002302.2960380BWEX-900D6340002603960380BWEX-250EXD4-0.06防爆边墙式排风机0.06KW/380VBWEX-300EXD4-0.09防爆边墙式排风机0.09KW/380VBWEX-350EXD4-0.12防爆边墙式排风机0.12KW/380VBWEX-400EXD4-0.18防爆边墙式排风机0.18KW/380VBWEX-450EXD4-0.25防爆边墙式排风机0.25KW/380VBWEX-500EXD4-0.37防爆边墙式排风机0.37KW/380VBWEX-550EXD4-0.55防爆边墙式排风机0.55KW/380VBWEX-600EXD4-1.1防爆边墙式排风机1.1KW/380VBWEX-650EXD4-2.2防爆边墙式排风机2.2KW/380VBWEX-700EXD6-1.5防爆边墙式排风机1.5KW/380VBWEX-750EXD6-1.1防爆边墙式排风机1.1KW/380VBWEX-800EXD6-2.2防爆边墙式排风机2.2KW/380VBWEX-900EXD6-3防爆边墙式排风机3KW/380VSEF-250EXD4-0.06防爆边墙式排风机0.06KW/380VSEF-300DEXD4-0.09防爆边墙式排风机0.09KW/380VSEF-350EXD4-0.12防爆边墙式排风机0.12KW/380VSEF-400EXD4-0.18防爆边墙式排风机0.18KW/380VSEF-450EXD4-0.25防爆边墙式排风机0.25KW/380VSEF-500EXD4-0.37防爆边墙式排风机0.37KW/380VSEF-550EXD4-0.55防爆边墙式排风机0.55KW/380VSEF-600EXD4-1.1防爆边墙式排风机1.1KW/380VSEF-650EXD4-2.2防爆边墙式排风机2.2KW/380VSEF-700EXD6-1.5防爆边墙式排风机1.5KW/380VSEF-750EXD6-1.1防爆边墙式排风机1.1KW/380VSEF-800EXD6-2.2防爆边墙式排风机2.2KW/380VSEF-900EXD6-3防爆边墙式排风机3KW/380V)