SWF (A) series low noise】 【FLF Francis fan for ventilation and air conditioning systems now often appear inadequate flow of fan pressure is too high and too large and not enough pressure or flow of such systems do not match with the fan case, we under "quasi-ternary" theory and "radial acceleration" design method, developed specific speed range between centrifugal and axial flow, the pressure coefficient is higher than axial fans and centrifugal flow system than a new fan. Therefore, a wider range of user selection, the system matched more reasonable system of energy-saving benefit. It is currently the best fans in the new product pipeline pressure system. 
 Uses: 
 Widely used in industrial and civil construction of the ventilation and air conditioning systems. Particularly suitable for pressurized air supply pipe. SWF (A) HLF】 【- Ⅰ type can replace the high-pressure axial fans SWF (A) HLF】 【- Ⅱ dual-speed, one machine, SWF (A) HLF】 【- Ⅲ type can replace the high-pressure centrifugal fan . 
 Structure and features: 
 Type is the basic structure of air into and out the same axis (ie axial structure), round shell cones, leaf shape along the width of the flow was varied. A straight-type cylinder, drum, and imports plus three types of arc muffler. 
 Meridional flow speed based on the principle of centrifugal and axial flow fan with double characteristics, that have both a large high pressure flow, and high efficiency, low noise and high efficiency advantages of a wide area. 
 Compact, light weight, easy installation, small footprint. 
 Installation and use: 
 Horizontal, vertical and ceiling can be installed. 
 Ventilation, air and pipeline pressure can be used.